AGREEMENT AND PLAN OF MERGER between F.N.B. CORPORATION and PARKVALE FINANCIAL CORPORATION DATED: AS OF JUNE 15, 2011

Exhibit 2.1

AGREEMENT AND PLAN OF MERGER

between

F.N.B. CORPORATION

and

PARKVALE FINANCIAL CORPORATION

DATED: AS OF JUNE 15, 2011

TABLE OF CONTENTS

		Page
ARTICLE 1 THE MERGER			1
1.1 The Merger			1
1.2 Effective Time			1
1.3 Effects of the Merger			2
1.4 Conversion of PFC Capital Stock			2
1.5 FNB Capital Stock			4
1.6 PFC Equity and Equity-Based Awards			4
1.7 Articles of Incorporation and Bylaws of the Surviving Company			5
1.8 Tax Consequences			5
1.9 Dissenting Shares			5
1.10 The Bank Merger			5
1.11 Right to Revise Structure			5
ARTICLE 2 EXCHANGE OF SHARES			6
2.1 FNB to Make Merger Consideration Available			6
2.2 Exchange Shares			6
2.3 Adjustments for Dilution and Other Matters			8
2.4 Withholding Rights			8
ARTICLE 3 REPRESENTATIONS AND WARRANTIES OF PFC			9
3.1 Corporate Organization			9
3.2 Capitalization			10
3.3 Authority; No Violation			11
3.4 Consents and Approvals			12
3.5 Reports			13
3.6 SEC Reports; Financial Statements			13
3.7 Broker’s Fees			15
3.8 Absence of Certain Changes or Events			15
3.9 Legal Proceedings			16
3.10 Taxes and Tax Returns			16
3.11 Employee Benefits			18
3.12 Compliance with Applicable Law			21
3.13 Contracts			21
3.14 Agreements with Regulatory Agencies			21
3.15 Undisclosed Liabilities			22
3.16 Environmental Liability			22
3.17 Real Property			23
3.18 State Takeover Laws			24
3.19 Reorganization			24
3.20 Opinion			24
3.21 Insurance			24
3.22 Investment Securities			24
3.23 Intellectual Property			24

		Page
3.24 Loans; Nonperforming and Classified Assets			25
3.25 Fiduciary Accounts			26
ARTICLE 4 REPRESENTATIONS AND WARRANTIES OF FNB			26
4.1 Corporate Organization			26
4.2 Capitalization			27
4.3 Authority; No Violation			27
4.4 Consents and Approvals			28
4.5 Reports			29
4.6 SEC Reports; Financial Statements			29
4.7 Broker’s Fees			30
4.8 Absence of Certain Changes or Events			31
4.9 Legal Proceedings			31
4.10 Taxes and Tax Returns			31
4.11 Employee Benefits			32
4.12 Compliance with Applicable Law			35
4.13 Contracts			35
4.14 Agreements with Regulatory Agencies			36
4.15 Undisclosed Liabilities			36
4.16 Environmental Liability			36
4.17 Reorganization			37
4.18 Loans; Nonperforming and Classified Assets			37
4.19 Fiduciary Accounts			37
4.20 Allowance for Loan Losses			38
4.21 Interested Shareholder Status			38
ARTICLE 5 COVENANTS RELATING TO CONDUCT OF BUSINESS			38
5.1 Conduct of Businesses Prior to the Effective Time			38
5.2 PFC Forbearances			38
5.3 FNB Forbearances			43
5.4 Voting Agreements			44
ARTICLE 6 ADDITIONAL AGREEMENTS			44
6.1 Regulatory Matters			44
6.2 Access to Information			46
6.3 PFC Shareholder Approval			47
6.4 Commercially Reasonable Efforts; Cooperation			47
6.5 NYSE Approval			47
6.6 Benefit Plans			48
6.7 Indemnification; Directors’ and Officers’ Insurance			49
6.8 Additional Agreements			51
6.9 Advice of Changes			51
6.10 Dividends			51
6.11 Certain Actions			52
6.12 Transition			54
6.13 Tax Representation Letters			55

		Page
6.14 Certain Post-Closing Matters			55
6.15 Preferred Stock Held by U.S. Treasury			55
6.16 Assumption of Certain PNC Indebtedness			56
6.17 Phase I Environmental Audit			56
ARTICLE 7 CONDITIONS PRECEDENT			56
7.1 Conditions to Each Party’s Obligation to Effect the Merger			56
7.2 Conditions to Obligation of FNB to Effect the Merger			57
7.3 Conditions to Obligation of PFC to Effect the Merger			58
ARTICLE 8 TERMINATION AND AMENDMENT			58
8.1 Termination			58
8.2 Effect of Termination			60
8.3 Amendment			60
8.4 Extension; Waiver			60
ARTICLE 9 GENERAL PROVISIONS			61
9.1 Closing			61
9.2 Nonsurvival of Representations, Warranties and Agreements			61
9.3 Expenses			61
9.4 Notices			62
9.5 Interpretation			62
9.6 Counterparts			63
9.7 Entire Agreement			63
9.8 Governing Law; Jurisdiction			63
9.9 Severability			64
9.10 Assignment; Third Party Beneficiaries			64
EXHIBITS:
Exhibit A            Form of Bank Merger Agreement			A-1
Exhibit B            Form of Voting Agreement			B-1

INDEX OF DEFINED TERMS

		Section
Acquisition Proposal		6.11(e)(i)
Agreement		Preamble
Articles of Merger		1.2
Average Closing Price		1.4(f)
Bank Merger		1.10
Bank Merger Agreement		1.10
BHC Act		3.4
Break-up Fee		6.11(f)
Certificates		1.4(d)
Change in PFC Recommendation		6.11(b)
Claim		6.7(a)
Closing		9.1
Closing Date		9.1
Code		Preamble
Common Stock Merger Consideration		1.4(a)
Confidentiality Agreements		6.2(b)
Contamination		3.16(b)
Contracts		5.2(j)
Controlled Group Liability		3.11
DRSP Plan		1.4(e)
Effective Date		1.2
Effective Time		1.2
Environmental Laws		3.16(b)
Environmental Liability		3.16(b)
ERISA		3.11
ERISA Affiliate		3.11
ESOP		6.6(d)
Exchange Act		3.6(a)
Exchange Agent		2.1
Exchange Fund		2.1
Exchange Ratio		1.4(a)
FBCA		1.1
FDIC		3.4
Federal Reserve Board		3.4
FNB		Preamble
FNB Bank		1.10
FNB Bank Board		1.10
FNB Benefit Plans		4.11
FNB Bylaws		4.1(b)
FNB Capital Stock		1.4(d)
FNB Charter		4.1(b)
FNB Common Stock		1.4(a)
FNB Disclosure Schedule		Art. 4 Preamble

		Section
FNB Employment Agreement		4.11
FNB Plan		4.11
FNB Preferred Stock		4.2(a)
FNB Qualified Plans		4.11(d)
FNB Regulatory Agreement		4.14
FNB Reports		4.6(a)
FNB Series D Preferred Stock		1.4(b)
FNB Stock Plans		4.2(a)
FNB Subsidiaries		3.1(c)
FNB Warrant		1.6(b)
GAAP		3.1(c)
Governmental Entity		3.4
Hazardous Substances		3.16(b)
HOLA		3.1(b)
HSR Act		3.4
Indemnified Parties		6.7(a)
Injunction		7.1(e)
Insurance Amount		6.7(c)
Intellectual Property		3.23
IRS		3.10(a)
Laws		3.12
Leased Properties		3.17(c)
Leases		3.17(b)
Liens		3.2(b)
Loan		3.24(a)
Material Adverse Effect		3.1(c)
Materially Burdensome Regulatory Condition		6.1(d)
Merger		Preamble
Merger Consideration		1.4(b)
Multiemployer Plan		3.11
Multiple Employer Plan		3.11(f)
NASDAQ		3.1(c)
NYSE		1.4(f)
OCC		3.4
OREO		3.24(e)
Other Regulatory Approvals		3.4
OTS		3.4
Owned Properties		3.17(a)
PA DOB		3.4
Payment Event		6.11(g)
PBCL		1.1
PBGC		3.11(e)
Person		3.9(a)
PFC		Preamble
PFC Articles		3.1(b)
PFC Bank		1.10

		Section
PFC Bank Designee		6.14(b)
PFC Benefit Plans		3.11
PFC Bylaws		3.1(b)
PFC Capital Stock		1.4(c)
PFC Common Stock		1.4(a)
PFC Designee		1.3(b)
PFC Disclosure Schedule		Art. 3 Preamble
PFC Employment Agreements		3.11
PFC Plan		3.11
PFC Qualified Plans		3.11(d)
PFC Recommendation		6.3
PFC Regulatory Agreement		3.14
PFC Reports		3.6(a)
PFC Representatives		6.11(a)
PFC Series A Preferred Stock		1.4(b)
PFC Shareholders Meeting		6.3
PFC Stock Option		1.6(a)
PFC Stock Plans		1.6(a)
PFC Subsidiaries		3.1(c)
PFC Warrant		1.6(b)
Preferred Stock Merger Consideration		1.4(b)
Proxy Statement		3.4
Registration Statement		3.4
Regulatory Agencies		3.5
Requisite Regulatory Approvals		7.1(c)
Sarbanes-Oxley Act		3.6(a)
SEC		3.4
Securities Act		3.6(a)
SRO		3.4
Subsidiary		3.1(c)
Superior Proposal		6.11(e)(ii)
Surviving Company		Preamble
Tax Returns		3.10(c)
Taxes		3.10(b)
Third Party		3.17(d)
Third Party Leases		3.17(d)
Treasury Department		1.6(b)
Treasury Shares		1.4(c)
Voting Agreement		5.4
Withdrawal Liability		3.11

AGREEMENT AND PLAN OF MERGER

     AGREEMENT AND PLAN OF MERGER, dated as of June 15, 2011 (this “Agreement”), between F.N.B. CORPORATION, a Florida corporation (“FNB”), and PARKVALE FINANCIAL CORPORATION, a Pennsylvania corporation (“PFC”).

W I T N E S S E T H:

     WHEREAS, the Boards of Directors of PFC and FNB have determined that it is in the best interests of their respective companies and their shareholders to consummate the strategic business combination transaction provided for in this Agreement pursuant to which PFC will, on the terms and subject to the conditions set forth in this Agreement, merge with and into FNB (the “Merger”), so that FNB is the surviving company in the Merger (sometimes referred to in such capacity as the “Surviving Company”); and

     WHEREAS, for federal income Tax (as defined in Section 3.10(b)) purposes, it is intended that the Merger shall qualify as a reorganization under the provisions of Section 368(a) of the Internal Revenue Code of 1986, as amended (the “Code”); and

     WHEREAS, the parties desire to make certain representations, warranties, covenants and agreements in connection with the Merger and also to prescribe certain conditions to the Merger.

     NOW, THEREFORE, in consideration of the mutual representations, warranties, covenants and agreements contained in this Agreement, and other good and valuable consideration, the receipt and sufficiency of which are hereby acknowledged, and intending to be legally bound hereby, the parties agree as follows:

ARTICLE 1

THE MERGER

     1.1 The Merger.

     Subject to the terms and conditions of this Agreement, in accordance with the Pennsylvania Business Corporation Law (the “PBCL”) and the Florida Business Corporation Act (the “FBCA”), at the Effective Time (as defined in Section 1.2) PFC shall merge with and into FNB. FNB shall be the Surviving Company in the Merger, and shall continue its corporate existence under the laws of the State of Florida. As of the Effective Time, the separate corporate existence of PFC shall cease.

     1.2 Effective Time.

     The Merger shall become effective as set forth in the articles of merger (the “Articles of Merger”) that shall be filed with the Secretary of State of the Commonwealth of Pennsylvania and the Secretary of State of the State of Florida on or before the Closing Date (as defined in Section 9.1). The term “Effective Time” shall mean the date and time when the Merger becomes

effective as set forth in the Articles of Merger. “Effective Date” shall mean the date on which the Effective Time occurs.

     1.3 Effects of the Merger.

          (a) Effects Under PBCL and FBCA. At and after the Effective Time, the Merger shall have the effects set forth in Section 1929 of the PBCL and Section  ###-###-#### of the FBCA.

          (b) Directors and Executive Officers of the Surviving Company. The directors of the Surviving Company immediately after the Merger shall be the (i) directors of FNB immediately prior to the Merger, and (ii) one (1) current member of PFC’s Board of Directors (the “PFC Designee”), who shall be Robert J. McCarthy, Jr. If Mr. McCarthy does not become a director of the Surviving Company because of death or disability, FNB agrees, after consultation with the members of the Board of Directors of PFC, to cause a member of the PFC Board of Directors as of the date hereof who is mutually agreeable to FNB and PFC to be elected or appointed to the Board of Directors of the Surviving Company as the PFC Designee. The executive officers of the Surviving Company immediately after the Merger shall be the executive officers of FNB immediately prior to the Merger.

     1.4 Conversion of PFC Capital Stock.

          (a) Subject to the provisions of this Agreement, each share of common stock, par value $1.00 per share, of PFC (“PFC Common Stock”) issued and outstanding immediately prior to the Effective Time, other than Treasury Shares (as defined in Section 1.4(c)) shall, by virtue of the Merger, no longer be outstanding and shall as of the Effective Time automatically be converted into and shall thereafter represent the right to receive as merger consideration (the “Common Stock Merger Consideration”) 2.178 shares (the “Exchange Ratio”) of common stock, $0.01 par value, of FNB (“FNB Common Stock”).

          (b) In the event each issued and outstanding share of the Fixed Rate Cumulative Perpetual Preferred Stock, Series A, par value $1.00 per share, stated liquidation amount $1,000 per share, of PFC (the “PFC Series A Preferred Stock”) is not purchased or redeemed prior to or contemporaneous with the Merger, then each share of the PFC Series A Preferred Stock issued and outstanding immediately prior to the Effective Time (other than any shares of PFC Series A Preferred Stock to be cancelled in accordance with Section 1.4(c)) shall no longer be outstanding and shall as of the Effective Time automatically be converted into and shall thereafter represent the right to receive, subject to the other provisions of this Article 1, one share (the “Preferred Stock Merger Consideration” and, together with the Common Stock Merger Consideration, the “Merger Consideration”) of the FNB Preferred Stock to be designated, prior to the Closing Date, as Fixed Rate Cumulative Perpetual Preferred Stock, Series D, stated liquidation amount $1,000 per share (the “FNB Series D Preferred Stock”), and otherwise having rights, preferences, privileges and voting powers such that the rights, preferences, privileges and voting powers of the PFC Series A Preferred Stock are not adversely affected by such conversion and having rights, preferences and privileges and voting powers, and limitations and restrictions that, taken as a whole, are not materially less favorable than the

rights, preferences, privileges and voting powers, and limitations and restrictions of the PFC Series A Preferred Stock immediately prior to such conversion, taken as a whole.

          (c) At and after the Effective Time, each Treasury Share shall be cancelled and retired and no shares of FNB Common Stock or other consideration shall be issued in exchange therefor. “Treasury Shares” means shares of PFC Common Stock and any outstanding PFC Series A Preferred Stock (together, the “PFC Capital Stock”) held by PFC or any of the PFC Subsidiaries (as defined in Section 3.1(c)) or by FNB or any of its Subsidiaries, other than in a fiduciary, including custodial or agency, capacity or as a result of debts previously contracted in good faith.

          (d) At the Effective Time, the stock transfer books of PFC shall be closed as to holders of PFC Capital Stock immediately prior to the Effective Time and no transfer of PFC Capital Stock by any such holder shall thereafter be made or recognized. If, after the Effective Time, certificates representing PFC Capital Stock (“Certificates”) are properly presented in accordance with Section 2.2 of this Agreement to the Exchange Agent (as defined in Section 2.1), such Certificates shall be cancelled and exchanged for FNB Common Stock or FNB Series D Preferred Stock (together, the “FNB Capital Stock”), as applicable, held in book entry representing the number of whole shares into which the PFC Capital Stock represented by the Certificates was converted in the Merger, plus, if applicable pursuant to Section 1.4(f), any payment for any fractional share of FNB Common Stock without any interest thereon and any dividends or distributions to which the holder of such Certificates is entitled pursuant to Section 2.2(b).

          (e) Each holder of PFC Common Stock shall have the option of enrolling the whole shares of FNB Common Stock issuable to such shareholder upon the consummation of the Merger in FNB’s Dividend Reinvestment and Direct Stock Purchase Plan (the “DRSP Plan”). Each PFC shareholder electing to enroll in the DRSP Plan shall be issued FNB Common Stock held in book entry representing the number of whole shares received in the Merger.

          (f) Notwithstanding any other provision of this Agreement, each holder of PFC Common Stock who would otherwise be entitled to receive a fractional share of FNB Common Stock, after taking into account all Certificates delivered by such holder, shall receive an amount in cash, without interest, rounded to the nearest cent, equal to the product obtained by multiplying (a) the Average Closing Price (as defined below) as of the Closing Date by (b) the fraction of a share (calculated to the nearest ten-thousandth when expressed in decimal form) of FNB Common Stock, to which such holder would otherwise be entitled. No such holder shall be entitled to dividends or other rights in respect of any such fractional shares. “Average Closing Price” means, as of any specified date, the average composite closing price of FNB Common Stock on the New York Stock Exchange, including any successor exchange (“NYSE”), as reported by the NYSE for the twenty (20) consecutive trading days ending on and including the fifth such trading day prior to the specified date rounded to the nearest ten-thousandth.

     1.5 FNB Capital Stock. At and after the Effective Time, each share of FNB capital stock issued and outstanding immediately prior to the Effective Time shall remain issued and outstanding and shall not be affected by the Merger.

     1.6 PFC Equity and Equity-Based Awards.

          (a) PFC Stock Options. Effective as of the Effective Time, each then outstanding option to purchase shares of PFC Common Stock (each a “PFC Stock Option”), pursuant to the equity-based compensation plans identified in Section 3.11(a) of the PFC Disclosure Schedule (as defined in Article 3 hereof) (the “PFC Stock Plans”) and the award agreements evidencing the grants thereunder, granted to any current or former employee or director of PFC or any of the PFC Subsidiaries (as defined in Section 3.1(c)) shall at the Effective Time cease to represent a right to acquire shares of PFC Common Stock and shall be converted automatically into a fully vested and exercisable option to acquire shares of FNB Common Stock on the terms hereinafter set forth. FNB shall assume each such PFC Stock Option in accordance with the terms of the relevant PFC Stock Plan and stock option or other agreement by which it is evidenced, except that from and after the Effective Time: (i) FNB and the Compensation Committee of its Board of Directors, including, if applicable, the entire Board of Directors of FNB, shall be substituted for PFC and the compensation committee of the Board of Directors of PFC, including, if applicable, the entire Board of Directors of PFC, administering such PFC Stock Plan, (ii) each PFC Stock Option assumed by FNB may be exercised solely for shares of FNB Common Stock, (iii) the number of shares of FNB Common Stock subject to such PFC Stock Option shall be equal to the number of shares of PFC Common Stock subject to such PFC Stock Option immediately prior to the Effective Time multiplied by the Exchange Ratio, provided that any fractional shares of FNB Common Stock resulting from such multiplication shall be rounded down to the nearest share, and (iv) the exercise price per share of FNB Common Stock under each such option shall be the amount (rounded up to the nearest whole cent) equal to the per share exercise price under each such PFC Stock Option prior to the Effective Time divided by the Exchange Ratio. Notwithstanding clauses (iii) and (iv) of the preceding sentence, each PFC Stock Option that is an “incentive stock option” shall be adjusted as required by Section 424 of the Code, and regulations promulgated thereunder, so as not to constitute a modification, extension or renewal of the option within the meaning of Section 424(h) of the Code. FNB and PFC agree to take all reasonable and necessary steps to effect the provisions of this Section 1.6(a). As of the Effective Time, FNB shall issue to each holder of each outstanding PFC Stock Option that has been assumed by FNB (the “Assumed Stock Options”) a document evidencing the conversion and assumption of such PFC Stock Option by FNB pursuant to this Section 1.6(a). Prior to the Effective Time, FNB shall reserve for issuance the number of shares of FNB Common Stock necessary to satisfy FNB’s obligations under this Section 1.6(a). As soon as practicable after the Effective Time, FNB shall file and cause to become effective a registration statement or statements on Form S-8 or Form S-3 (or any successor or other applicable form) with respect to the shares of FNB Common Stock subject to the Assumed Stock Options, and to maintain the effectiveness of such registration statement for so long as any PFC Stock Options remain outstanding.

          (b) Warrant. The Warrant issued on December 23, 2008 to the U.S. Department of the Treasury (“Treasury Department”) in connection with the issuance of the PFC Series A Preferred Stock (the “PFC Warrant”) shall, by virtue of the Merger and without

any action on the part of any Person, cease to be a warrant to purchase PFC Common Stock and will be converted automatically into a warrant to purchase FNB Common Stock (the “FNB Warrant”) in accordance with the terms of the PFC Warrant, and FNB will assume such warrant subject to its terms; provided, however, that after the Effective Time:

(i) the number of shares of FNB Common Stock purchasable upon exercise of the FNB Warrant will equal the product of (x) the number of shares of PFC Common Stock that were purchasable pursuant to the PFC Warrant immediately before the Effective Time and (y) the Exchange Ratio, rounded to the nearest one-hundredth (1/100th) of a share; and

(ii) the per share exercise price for the PFC Warrant will equal the quotient of (x) the per share exercise price of the PFC Warrant in effect immediately before the Effective Time and (y) the Exchange Ratio, rounded to the nearest one-tenth (1/10th) of a cent.

     1.7 Articles of Incorporation and Bylaws of the Surviving Company. The FNB Charter (as defined in Section 4.1(b)) as in effect immediately prior to the Effective Time shall be the articles of incorporation of the Surviving Company until thereafter amended in accordance with applicable law. The FNB Bylaws (as defined in Section 4.1(b)) as in effect immediately prior to the Effective Time shall be the bylaws of the Surviving Company until thereafter amended in accordance with applicable law.

     1.8 Tax Consequences. It is intended that the Merger shall constitute a “reorganization” within the meaning of Section 368(a) of the Code, and that this Agreement shall constitute a “plan of reorganization” for purposes of Sections 354 and 361 of the Code.

     1.9 Dissenting Shares. No outstanding shares of PFC Common Stock shall have any dissenters’ rights of appraisal under the PBCL.

     1.10 The Bank Merger. As soon as practicable after the execution of this Agreement, PFC and FNB shall cause Parkvale Savings Bank (“PFC Bank”) and First National Bank of Pennsylvania (“FNB Bank”) to enter into a bank merger agreement, the form of which is attached to this Agreement as Exhibit “A” (the “Bank Merger Agreement”), that provides for the merger of PFC Bank with and into FNB Bank (the “Bank Merger”), in accordance with applicable laws and regulations and the terms of the Bank Merger Agreement and as soon as practicable after consummation of the Merger. The Bank Merger Agreement provides that the directors of FNB Bank (“FNB Bank Board”) upon consummation of the Bank Merger shall be the directors of FNB Bank immediately prior to the Bank Merger plus the PFC Bank Designee (as defined in Section 6.14(b)).

     1.11 Right to Revise Structure. FNB may at any time change the method of effecting the combination contemplated by this Agreement if and to the extent it deems such a change to be desirable; provided, however, that no such change shall (i) alter or change the amount or kind of the Common Stock Merger Consideration (as defined in Section 1.4(a)) provided for in this Agreement, (ii) adversely affect the Tax treatment of PFC’s shareholders as a result of receiving the Merger Consideration or the Tax treatment of either party pursuant to this Agreement, or (iii) materially impede or delay consummation of the transactions this Agreement contemplates. In

the event FNB elects to make such a change, the parties agree to execute appropriate documents to reflect the change.

ARTICLE 2

EXCHANGE OF SHARES

     2.1 FNB to Make Merger Consideration Available. As promptly as practicable following the Effective Time, FNB shall deposit, or shall cause to be deposited, with Registrar and Transfer Company (“Exchange Agent”), for the benefit of the holders of Certificates, for exchange in accordance with this Article 2, (a) book entry shares representing the aggregate number of shares of FNB Capital Stock issuable pursuant to this Agreement in exchange for shares of PFC Capital Stock outstanding immediately prior to the Effective Time of the Merger, (b) immediately available funds equal to any dividends or distributions payable in accordance with Section 2.2(b), and (c) cash in lieu of any fractional shares of FNB Common Stock to be issued pursuant to Section 1.4(f) and paid pursuant to Section 1.4 in exchange for outstanding shares of PFC Capital Stock (such cash and book entry shares for shares of FNB Capital Stock, collectively being referred to as the “Exchange Fund”). The Exchange Fund shall not be used for any purpose other than to fund payments due pursuant to Section 2.2 except as otherwise provided in this Agreement.

     2.2 Exchange Shares.

          (a) As soon as practicable after the Effective Time, and in no event more than five business days thereafter, the Exchange Agent shall mail to each holder of record of PFC Capital Stock a letter of transmittal in customary form as prepared by FNB and reasonably acceptable to PFC which shall specify, among other things, that delivery shall be effected, and risk of loss and title to the Certificates shall pass, only upon delivery of the Certificates to the Exchange Agent and instructions for use in effecting the surrender of the Certificates in exchange for the Merger Consideration and any cash in lieu of fractional shares into which the shares of PFC Common Stock represented by such Certificate or Certificates shall have been converted pursuant to this Agreement and any dividends or distributions to which such holder is entitled pursuant to Section 2.2(b). After the Effective Time of the Merger, each holder of a Certificate formerly representing PFC Capital Stock, other than Treasury Shares, who surrenders or has surrendered such Certificate or customary affidavits and indemnification regarding the loss or destruction of such Certificate, together with duly executed transmittal materials to the Exchange Agent, shall, upon acceptance thereof, be entitled to book entry shares representing FNB Common Stock or FNB Series D Preferred Stock, as applicable, into which the shares of PFC Capital Stock shall have been converted pursuant to Section 1.4, as well as any cash in lieu of any fractional share of FNB Common Stock to which such holder would otherwise be entitled and any dividends or distributions to which such holder is entitled pursuant to Section 2.2(b). The Exchange Agent shall accept such Certificate upon compliance with such reasonable and customary terms and conditions as the Exchange Agent may impose to effect an orderly exchange thereof in accordance with normal practices. Until surrendered as contemplated by this Section 2.2, (i) each Certificate representing PFC Common Stock shall be deemed from and after the Effective Time of the Merger to evidence only the right to receive the Common Stock Merger Consideration, any cash in lieu of fractional shares into which the

shares of PFC Common Stock represented by such Certificate or Certificates shall have been converted pursuant to this Agreement and any dividends or distributions to which such holder is entitled pursuant to Section 2.2(b), and (ii) any Certificate representing PFC Series A Preferred Stock shall be deemed from and after the Effective Time of the Merger to evidence only the right to receive the Preferred Stock Merger Consideration and any dividends or distributions to which such holder is entitled pursuant to Section 2.2(b). FNB shall not be obligated to deliver the Merger Consideration or any check representing cash in lieu of fractional shares and/or declared but unpaid dividends to which any former holder of PFC Capital Stock is entitled as a result of the Merger until such holder surrenders his Certificate or Certificates for exchange as provided in Section 2.2. If any shares of FNB Capital Stock, or any check representing cash in lieu of fractional shares and/or declared but unpaid dividends, is to be issued in a name other than that in which a Certificate surrendered for exchange is issued, the Certificate so surrendered shall be properly endorsed and otherwise in proper form for transfer and the person requesting such exchange shall affix any requisite stock transfer tax stamps to the Certificate surrendered or provide funds for their purchase or establish to the satisfaction of the Exchange Agent that such taxes are not payable. If any Certificate shall have been lost, stolen or destroyed, then upon the making of an affidavit, in form and substance reasonably acceptable to FNB, of that fact by the Person claiming such Certificate to be lost, stolen or destroyed and, if required by FNB or the Exchange Agent, the posting by such Person of a bond in such amount as FNB and the Exchange Agent may determine is reasonably necessary as indemnity against any claim that may be made against it, FNB or the Surviving Company with respect to such Certificate, the Exchange Agent will deliver in exchange for such lost, stolen or destroyed Certificate the Merger Consideration payable in respect thereof pursuant to this Agreement.

          (b) Following surrender of any such Certificate, there shall be paid to the record holder of the whole shares of FNB Capital Stock issued in exchange therefor, without interest, (i) at the time of such surrender, the amount of any dividends or distributions with a record date prior to the Effective Time that have been declared by PFC in respect of shares of PFC Capital Stock after the date of this Agreement in accordance with the terms of this Agreement and which remain unpaid at the Effective Time, (ii) at the time of such surrender, the amount of any cash payable in lieu of a fractional share of FNB Common Stock to which such holder is entitled pursuant to Section 1.4(f) and the amount of dividends or other distributions with a record date after the Effective Time of the Merger and which had become payable with respect to such whole shares of FNB Common Stock prior to the time of surrender, and (iii) at the appropriate payment date, the amount of dividends or other distributions with a record date after the Effective Time of the Merger but prior to surrender and a payment date subsequent to surrender payable with respect to such whole shares of FNB Capital Stock. After the date of this Agreement, PFC shall coordinate with FNB the declaration of any dividends in respect of PFC Capital Stock as provided in Sections 5.2(a) and 6.10.

          (c) After the Effective Time, there shall be no transfers on the stock transfer books of PFC of the shares of PFC Capital Stock that were issued and outstanding immediately prior to the Effective Time other than to settle transfers of PFC Capital Stock that occurred prior to the Effective Time. If, after the Effective Time, Certificates are presented to FNB for any reason, they shall be cancelled and exchanged as provided in this Agreement. All shares of FNB Capital Stock and cash in lieu of fractional shares of FNB Common Stock and/or declared but unpaid dividends issued upon the surrender for exchange of shares of PFC Capital Stock or the

provision of customary affidavits and indemnification for lost or mutilated Certificates in accordance with the terms hereof and the letter of transmittal, shall be deemed to have been issued in full satisfaction of all rights pertaining to such shares of PFC Capital Stock.

          (d) Any portion of the Exchange Fund, including any interest thereon, that remains undistributed to the shareholders of PFC following the passage of twelve (12) months after the Effective Time of the Merger shall be delivered to FNB, upon demand, and any shareholders of PFC who have not theretofore complied with this Section 2.2 shall thereafter look only to FNB for payment of their claim for FNB Capital Stock, any cash in lieu of fractional shares of FNB Common Stock and any unpaid dividends or distributions payable in accordance with Section 2.2(b).

          (e) Neither PFC nor FNB shall be liable to any holder of shares of PFC Capital Stock or FNB Capital Stock, as the case may be, for such shares, or dividends or distributions with respect thereto, or cash from the Exchange Fund delivered to a public official pursuant to any applicable abandoned property, escheat or similar law.

          (f) The Exchange Agent shall not be entitled to vote or exercise any rights of ownership with respect to the shares of FNB Capital Stock held by it from time to time hereunder, except that it shall receive and hold all dividends or other distributions paid or distributed with respect to such shares of FNB Capital Stock for the account of the Persons entitled thereto.

     2.3 Adjustments for Dilution and Other Matters. If prior to the Effective Time of the Merger, (a) FNB shall declare a stock dividend or distribution on FNB Capital Stock with a record date prior to the Effective Time of the Merger, or subdivide, split up, reclassify or combine FNB Capital Stock, or make a distribution other than a regular quarterly cash dividend, on FNB Capital Stock in any security convertible into FNB Capital Stock, in each case with a record date prior to the Effective Time of the Merger, or (b) the outstanding shares of FNB Capital Stock shall have been increased, decreased, changed into or exchanged for a different number or kind of shares or securities in each case as a result of a reorganization, recapitalization, reclassification, stock dividend, stock split, reverse stock split or other similar change in FNB’s capitalization other than a business combination transaction with another bank holding company or financial services company, then a proportionate adjustment or adjustments will be made to the Exchange Ratio and/or the Preferred Stock Merger Consideration, which adjustment may include, as appropriate, the issuance of securities, property or cash on the same basis as that on which any of the foregoing shall have been issued, distributed or paid to holders of such class of FNB Capital Stock generally.

     2.4 Withholding Rights. The Exchange Agent or, subsequent to the first anniversary of the Effective Time, FNB, shall be entitled to deduct and withhold from any cash portion of the Merger Consideration, any cash in lieu of fractional shares of FNB Common Stock, cash dividends or distributions payable pursuant to Section 2.2(b) and any other cash amounts otherwise payable pursuant to this Agreement to any holder of PFC Capital Stock such amounts as the Exchange Agent or FNB, as the case may be, is required to deduct and withhold under the Code, or any provision of state, local or foreign Tax law, with respect to the making of such payment. To the extent the amounts are so withheld by the Exchange Agent or FNB, as the case

may be, such withheld amounts shall be paid to the appropriate Tax authority by the Exchange Agent or FNB and shall be treated for all purposes of this Agreement as having been paid to the holder of shares of PFC Capital Stock in respect of whom such deduction and withholding was made by the Exchange Agent or FNB, as the case may be.

ARTICLE 3

REPRESENTATIONS AND WARRANTIES OF PFC

     Except as disclosed in the disclosure schedule delivered by PFC to FNB (the “PFC Disclosure Schedule”), PFC hereby represents and warrants to FNB as follows:

     3.1 Corporate Organization.

          (a) PFC is a corporation duly organized, validly existing and in good standing under the laws of the Commonwealth of Pennsylvania. PFC has the corporate power and authority and has all licenses, permits and authorizations of applicable Governmental Entities (as defined in Section 3.4) required to own or lease all of its properties and assets and to carry on its business as it is now being conducted, and is duly licensed or qualified to do business in each jurisdiction in which the nature of the business conducted by it or the character or location of the properties and assets owned or leased by it makes such licensing or qualification necessary, except where such failure to be licensed or qualified would not have a Material Adverse Effect (as defined in Section 3.1(c)) upon PFC.

          (b) PFC is duly registered as a savings and loan holding company under the Home Owners’ Loan Act, as amended (the “HOLA”). True and complete copies of the Articles of Incorporation of PFC (the “PFC Articles”) and the Bylaws of PFC (the “PFC Bylaws”), as in effect as of the date of this Agreement, have previously been made available to FNB.

          (c) Each of PFC’s Subsidiaries (i) is duly organized, validly existing and in good standing under the laws of its jurisdiction of organization, (ii) is duly qualified to do business in all jurisdictions, whether federal, state, local or foreign, where its ownership or leasing of property or the conduct of its business requires it to be so qualified, and (iii) has all requisite corporate power and authority, and has all licenses, permits and authorizations of applicable Governmental Entities required, to own or lease its properties and assets and to carry on its business as now conducted, except in each of clauses (i) — (iii) as would not be reasonably likely to have, either individually or in the aggregate, a Material Adverse Effect on PFC. As used in this Agreement, (i) the word “Subsidiary” when used with respect to either party, means any corporation, partnership, joint venture, limited liability company or any other entity (A) of which such party, or a subsidiary of such party, is a general partner, or (B) at least a majority of the securities or other interests of which having by their terms ordinary voting power to elect a majority of the board of directors or persons performing similar functions with respect to such entity is directly or indirectly owned by such party and/or one or more Subsidiaries thereof, and the terms “PFC Subsidiaries” and “FNB Subsidiaries” shall mean any direct or indirect Subsidiary of PFC or FNB, respectively, and (ii) the term “Material Adverse Effect” means, with respect to FNB, PFC or the Surviving Company, as the case may be, any event, circumstance, development, change or effect that alone or in the aggregate with other events,

circumstances, developments, changes or effects (A) is materially adverse to the business, results of operations or financial condition of such party and its Subsidiaries taken as a whole; provided, however, that, with respect to this clause (A), Material Adverse Effect shall not be deemed to include effects to the extent resulting from (1) changes, after the date of this Agreement, in U.S. generally accepted accounting principles (“GAAP”) or regulatory accounting requirements applicable to banks or savings associations and their holding companies generally, (2) changes, after the date of this Agreement, in laws, rules or regulations of general applicability or interpretations thereof by courts or any Governmental Entity (as defined in Section 3.4), (3) actions or omissions of (a) FNB or (b) PFC, taken at the request of, or with the prior written consent of the other or required hereunder, (4) changes, events or developments, after the date of this Agreement, in the national or world economy or financial or securities markets generally or changes, events or developments, after the date of this Agreement in general economic conditions or other changes, events or developments, after the date of this Agreement that affect banks or their holding companies generally except to the extent that such changes have a materially disproportionate adverse effect on such party relative to other similarly situated participants in the markets or industries in which they operate, (5) consummation or public disclosure of the transactions this Agreement contemplates, including the resignation of employment of employees, the incurrence of expenses in connection with the negotiation, execution and performance of this Agreement or any impact on such party’s business, customer relations, condition or results of operations, in each case as a result therefrom, (6) any outbreak or escalation of war or hostilities, any occurrence or threats of terrorist acts or any armed hostilities associated therewith and any national or international calamity, disaster or emergency or any escalation thereof, (7) any changes in interest rates or foreign currency rates, (8) any claim, suit, action, audit, arbitration, investigation, inquiry or other proceeding or order which in any manner challenges, seeks to prevent, enjoin, alter or delay, or seeks damages as a result of or in connection with, the transactions this Agreement contemplates, (9) any failure by such party to meet any published, whether by such party or a third party research analyst, or internally prepared estimates of revenues or earnings, (10) a decline in the price, or a change in the trading volume of, such party’s common stock on The NASDAQ Global Select Market (including any successor exchange, “NASDAQ”), or the NYSE, as applicable, and (11) any matter to the extent that (i) it is disclosed in reasonable detail in the party’s disclosure schedules delivered to the other party pursuant to this Agreement or in such party’s SEC reports referenced in Section 3.6 or Section 4.6, as applicable, which are publicly available as of the date hereof, and (ii) such disclosed matter does not worsen in a materially adverse manner, or (B) materially delays or impairs the ability of such party to timely consummate the transactions this Agreement contemplates.

     3.2 Capitalization.

          (a) The authorized capital stock of PFC consists of (i) 10,000,000 shares of PFC Common Stock, of which, as of June 15, 2011, 5,582,846 shares were issued and outstanding, and (ii) 5,000,000 shares of preferred stock, par value $1.00 per share, of which as of the date hereof 31,762 shares designated as “Fixed Rate Cumulative Perpetual Preferred Stock, Series A” were issued and outstanding. As of June 15, 2011, 1,152,048 shares of PFC Common Stock were held in PFC treasury and no shares of the PFC Series A Preferred Stock were held in the PFC Treasury. As of June 15, 2011, no shares of PFC Common Stock were reserved for issuance except for (i) 297,750 shares of PFC Common Stock reserved for issuance

upon the exercise of PFC Stock Options issued pursuant to the PFC Stock Plans, and (ii) 376,327 shares of PFC Common Stock reserved for issuance pursuant to the PFC Warrant. As of June 15, 2011, no restricted stock awards, performance share awards or other equity awards except for PFC Stock Options were outstanding under the PFC Stock Plans. All of the issued and outstanding shares of PFC Common Stock have been, and all shares of PFC Common Stock that may be issued upon the exercise of the PFC Stock Options will be, when issued in accordance with the terms thereof, duly authorized and validly issued and fully paid, non-assessable and free of preemptive rights, with no personal liability attaching to the ownership thereof. Except pursuant to this Agreement, the PFC Warrant and the PFC Stock Plans or as disclosed in Section 3.2 of the PFC Disclosure Schedule, PFC does not have, and is not bound by, any outstanding subscriptions, options, warrants, calls, commitments or agreements of any character calling for the purchase or issuance of any shares of PFC Common Stock or any other equity securities of PFC or any securities representing the right to purchase or otherwise receive any shares of PFC Common Stock. Set forth in Section 3.2 of the PFC Disclosure Schedule is a true, correct and complete list of each PFC Stock Option (such list to include the PFC Stock Plan or other arrangement under which such options were issued, the number of shares of PFC Common Stock subject thereto, the vesting schedule thereof and the exercise prices thereof). Since June 15, 2011, PFC has not issued or awarded, or authorized the issuance or award of, any options, restricted stock units or other equity-based awards under the PFC Stock Plans or otherwise. As of the date of this Agreement, no bonds, debentures, notes or other indebtedness having the right to vote on any matters on which shareholders of PFC may vote are issued or outstanding.

          (b) Except as set forth in Section 3.2(b) of the PFC Disclosure Schedule, all of the issued and outstanding shares of capital stock or other equity ownership interests of each Subsidiary of PFC are owned by PFC, directly or indirectly, free and clear of any material liens, pledges, charges and security interests and similar encumbrances, other than liens for property Taxes not yet due and payable (“Liens”), and all of such shares or equity ownership interests are duly authorized and validly issued and are fully paid, non-assessable and free of preemptive rights, except as provided in Section 1530 of the PBCL or similar laws in the case of depository institutions. No such Subsidiary has or is bound by any outstanding subscriptions, options, warrants, calls, commitments or agreements of any character calling for the purchase or issuance of any shares of capital stock or any other equity security of such Subsidiary or any securities representing the right to purchase or otherwise receive any shares of capital stock or any other equity security of such Subsidiary or any securities representing the right to purchase or otherwise receive any shares of capital stock or any other equity security of such Subsidiary.

     3.3 Authority; No Violation.

          (a) PFC has full corporate power and authority to execute and deliver this Agreement and to consummate the transactions this Agreement contemplates, subject to the receipt of necessary PFC Shareholder and Requisite Regulatory Approvals (as defined in Section 7.1(c)). The execution and delivery of this Agreement and the consummation of the transactions this Agreement contemplates have been duly and validly approved by the Board of Directors of PFC. Except for the approval and adoption of this Agreement and the transactions this Agreement contemplates by the affirmative vote of a majority of the votes cast by all shareholders of PFC entitled to vote thereon at a shareholders’ meeting at which a quorum is

present, no other corporate approvals on the part of PFC are necessary to approve this Agreement. This Agreement has been duly and validly executed and delivered by PFC and, assuming due authorization, execution and delivery by FNB, constitutes a valid and binding obligation of PFC, enforceable against PFC in accordance with its terms, except as may be limited by bankruptcy, insolvency, moratorium, reorganization or similar laws affecting the rights of creditors generally and the availability of equitable remedies.

          (b) Neither the execution and delivery of this Agreement by PFC nor the consummation by PFC of the transactions this Agreement contemplates, nor compliance by PFC with any of the terms or provisions of this Agreement, will (i) violate any provision of the PFC Articles or the PFC Bylaws or (ii) assuming that the consents, approvals and filings referred to in Section 3.4 are duly obtained and/or made and are in full force and effect, (A) violate any statute, code, ordinance, rule, regulation, judgment, order, writ, decree or Injunction (as defined in Section 7.1(e)) applicable to PFC, any of the PFC Subsidiaries or any of their respective properties or assets or (B) except as set forth in Section 3.3(b) of the PFC Disclosure Schedule, violate, conflict with, result in a breach of any provision of, constitute a default or an event which, with notice or lapse of time, or both, would constitute a default under, result in the termination of or a right of termination or cancellation under, accelerate the performance required by, or result in the creation of any Lien upon any of the respective properties or assets of PFC or any of the PFC Subsidiaries under, any of the terms, conditions or provisions of any note, bond, mortgage, indenture, deed of trust, license, lease, agreement or other instrument or obligation to which PFC or any of the PFC Subsidiaries is a party, or by which they or any of their respective properties or assets may be bound or affected, except for such violations, conflicts, breaches or defaults with respect to clause (ii) that are not reasonably likely to have, either individually or in the aggregate, a Material Adverse Effect on PFC.

     3.4 Consents and Approvals. Except for (a) the filing by FNB of applications and notices, as applicable, with the Board of Governors of the Federal Reserve System (the “Federal Reserve Board”) under the Bank Holding Company Act of 1956, as amended (the “BHC Act”) and the Federal Reserve Act, as amended, and with the Office of Thrift Supervision (the “OTS”), and approval of such applications and notices, and, in connection with the merger of PFC Bank with and into FNB Bank, the filing by FNB Bank of applications and notices, as applicable, with the Federal Deposit Insurance Corporation (the “FDIC”), the Office of the Comptroller of the Currency (the “OCC”), or the Pennsylvania Department of Banking (the “PA DOB”), and approval of such applications and notices, (b) the filing by FNB of any required applications or notices with any foreign or state banking, insurance or other regulatory or self-regulatory authorities and approval of such applications and notices (the “Other Regulatory Approvals”), (c) the filing by PFC with the Securities and Exchange Commission (the “SEC”) of a proxy statement in definitive form relating to the meeting of PFC shareholders to be held in connection with this Agreement (the “Proxy Statement”) and the transactions this Agreement contemplates and of a registration statement by FNB on Form S-4 that is declared effective (the “Registration Statement”) in which the Proxy Statement will be included as a prospectus, and declaration of effectiveness of the Registration Statement, (d) the filing by FNB of the Articles of Merger with and the acceptance for record by the Secretary of State of the Commonwealth of Pennsylvania pursuant to the PBCL and the filing of the Articles of Merger with and the acceptance for record by the Secretary of State of the State of Florida pursuant to the FBCA, (e) any notices or filings by PFC and FNB required under the Hart-Scott-Rodino Antitrust Improvements Act of 1976, as

amended (the “HSR Act”), (f) any consents, authorizations, approvals, filings or exemptions by FNB in connection with compliance with the applicable provisions of federal and state securities laws and the rules and regulations thereunder and of any applicable industry self-regulatory organization (“SRO”), and the rules of NASDAQ or the NYSE, or that are required under consumer finance, insurance mortgage banking and other similar laws, (g) approval of the listing on the NYSE of such FNB Common Stock issuable in the Merger, (h) the adoption of this Agreement by the requisite vote of shareholders of PFC, and (i) the consent of the Treasury Department to the redemption by PFC, or the purchase by FNB or one of its Subsidiaries, of all of the issued and outstanding shares of the PFC Series A Preferred Stock from the Treasury Department, no consents or approvals of or filings or registrations by FNB or PFC with any court, administrative agency or commission or other governmental authority or instrumentality or SRO (including, without limitation, the Treasury Department) (each a “Governmental Entity”) are necessary in connection with (A) the execution and delivery by PFC of this Agreement and (B) the consummation by PFC of the Merger and the other transactions this Agreement contemplates. Nothing in this Section 3.4 is intended or shall be construed as requiring PFC to take any of the actions described in this Agreement, or relieving FNB of its obligations to make such filings or obtain approvals or consents necessary to the consummation of this Agreement and the transactions contemplated in this Agreement.

     3.5 Reports. PFC and each of the PFC Subsidiaries have in all material respects timely filed all reports, registrations and statements, together with any amendments required to be made with respect thereto, that they were required to file since July 1, 2008 with (a) the Federal Reserve Board, (b) the FDIC, (c) the OTS, (d) the PA DOB, (e) any state regulatory authority, (f) any foreign regulatory authority and (g) any SRO (collectively, “Regulatory Agencies” and individually, a “Regulatory Agency”) and with each other applicable Governmental Entity, and all other reports and statements required to be filed by them since July 1, 2008, including any report or statement required to be filed pursuant to the laws, rules or regulations of the United States, any state, any foreign entity, or any Regulatory Agency, and have paid all fees and assessments due and payable in connection therewith. Except for normal examinations conducted by a Regulatory Agency in the ordinary course of the business of PFC and each of the PFC Subsidiaries, no Regulatory Agency has initiated or has pending any proceeding or, to the knowledge of PFC, investigation into the business or operations of PFC or any of the PFC Subsidiaries since July 1, 2008. There (i) is no unresolved material violation, criticism or exception by any Regulatory Agency with respect to any report or statement relating to any examinations or inspections of PFC or any of the PFC Subsidiaries and (ii) no Regulatory Agency has provided PFC with written notice of any, and to the knowledge of PFC there are no, unresolved disagreements or disputes with any Regulatory Agency with respect to the business, operations, policies or procedures of PFC since July 1, 2008.

     3.6 SEC Reports; Financial Statements.

          (a) PFC has filed or furnished on a timely basis with the SEC all material forms, reports, schedules, statements and other documents required to be filed or furnished by them under the Securities Act of 1933, as amended (the “Securities Act”), under the Securities Exchange Act of 1934, as amended (the “Exchange Act”), or under the securities regulations of the SEC, with the SEC since July 1, 2008 (all such filed or furnished documents, together with all exhibits and schedules thereto and all information incorporated therein by reference, the “PFC

Reports”), except as set forth in Section 3.6(a) of the PFC Disclosure Schedule. As of their respective filing dates (and, in the case of registration statements and proxy statements, as of the dates of effectiveness and the dates of mailing, respectively), except to the extent that any PFC Report has been amended by a subsequently filed PFC Report prior to the date hereof, in which case, as of the date of such amendment, (i) the PFC Reports complied in all material respects with the applicable requirements of the Securities Act, the Exchange Act and the Sarbanes-Oxley Act of 2002 (the “Sarbanes-Oxley Act”), as the case may be, and (ii) none of the PFC Reports contained any untrue statement of a material fact or omitted to state a material fact required to be stated therein or necessary in order to make the statements therein, in light of the circumstances under which they were made, not misleading. None of PFC’s Subsidiaries is required to file periodic reports with the SEC pursuant to Section 13 or 15(d) of the Exchange Act.

          (b) The financial statements (including the related notes thereto) included (or incorporated by reference) in the PFC Reports comply as to form in all material respects with applicable accounting requirements and the published rules and regulations of the SEC with respect thereto, have been prepared in accordance with GAAP (except, in the case of unaudited statements, as permitted by Form 10-Q of the SEC) applied on a consistent basis during the periods involved (except as may be expressly indicated in the notes thereto) and fairly present in all material respects the consolidated financial position of PFC and its Subsidiaries as of the dates thereof and their respective consolidated results of operations, changes in shareholders’ equity and changes in cash flows for the periods then ended (subject, in the case of unaudited statements, to normal and recurring year-end audit adjustments that were not, or are not expected to be, material in amount), all in accordance with GAAP and the applicable rules and regulations promulgated by the SEC.

          (c) As of the date of this Agreement, there are no outstanding comments from or unresolved issues raised by the SEC staff with respect to the PFC Reports.

          (d) The books and records of PFC and its Subsidiaries have been, and are being, maintained in all material respects in accordance with applicable legal and accounting requirements and reflect only actual transactions. The records, systems, controls, data and information of PFC and its Subsidiaries are recorded, stored, maintained and operated under means (including any electronic, mechanical or photographic process, whether computerized or not) that are under the exclusive ownership and direct control of PFC or its Subsidiaries or accountants (including all means of access thereto and therefrom), except for any non-exclusive ownership and non-direct control that would not reasonably be expected to have a material adverse effect on the system of internal accounting controls described in the following sentence. PFC and its Subsidiaries have implemented and maintain a system of internal accounting controls effective to provide reasonable assurances regarding the reliability of financial reporting and the preparation of financial statements in accordance with GAAP. PFC (i) has implemented and maintains disclosure controls and procedures (as defined in Rules 13a-15(e) and 15d-15(e) of the Exchange Act) effective to ensure that material information relating to PFC, including its consolidated Subsidiaries, is made known to the Chief Executive Officer and the Chief Financial Officer of PFC by others within those entities to allow timely decisions regarding required disclosure and to make the certifications required by the Exchange Act with respect to the PFC Reports and (ii) has disclosed, based on its most recent evaluation prior to the date of this Agreement, to PFC’s outside auditors and the audit committee of the board of directors of PFC

(A) any significant deficiencies and material weaknesses in the design or operation of internal controls over financial reporting (as defined in Rule 13a-15(f) of the Exchange Act) that would be reasonably likely to adversely affect PFC’s ability to accurately record, process, summarize and report financial information and (B) any fraud, whether or not material, that involves management or other employees who have a significant role in PFC’s internal controls over financial reporting.

          (e) Since July 1, 2008, (A) neither PFC nor any of its Subsidiaries nor, to the knowledge of PFC, any director, officer, employee, auditor, accountant or representative of it or any of its Subsidiaries has received or otherwise had or obtained knowledge of any material complaint, allegation, assertion or claim, whether written or oral, regarding the accounting or auditing practices, procedures, methodologies or methods of PFC or any of its Subsidiaries or their respective internal accounting controls, including any material complaint, allegation, assertion or claim that PFC or any of its Subsidiaries has engaged in questionable accounting or auditing practices, and (B) no attorney representing PFC or any of its Subsidiaries, whether or not employed by PFC or any of its Subsidiaries, has reported evidence of a material violation of securities laws, breach of fiduciary duty or similar violation by PFC or any of its officers, directors, employees or agents to the PFC Board or any committee thereof or to any of PFC’s directors or officers.

          (f) No agreement pursuant to which any loans or other assets have been or shall be sold by PFC or the PFC Subsidiaries entitle the buyer of such loans or other assets, unless there is material breach of a representation or covenant by PFC or the PFC Subsidiaries, to cause PFC or the PFC Subsidiaries to repurchase such loan or other asset or the buyer to pursue any other form of recourse against PFC or the PFC Subsidiaries. Except as set forth in Section 3.6(f) of the PFC Disclosure Schedule, to the knowledge of PFC, there has been no material breach of a representation or covenant by PFC or the PFC Subsidiaries in any such agreement since July 1, 2008. Except as set forth in Section 3.6(f) of the PFC Disclosure Schedule, (i) since December 31, 2010, no cash, stock or other dividend or any other distribution with respect to the capital stock of PFC or any of the PFC Subsidiaries has been declared, set aside or paid, (ii) since July 1, 2008, no shares of capital stock of PFC have been purchased, redeemed or otherwise acquired, directly or indirectly, by PFC, and (iii) no agreements have been made to do any of the foregoing.

     3.7 Broker’s Fees. Except as set forth in Section 3.7 of the PFC Disclosure Schedule, neither PFC nor any PFC Subsidiary nor any of their respective officers or directors has employed any broker or finder or incurred any liability for any broker’s fees, commissions or finder’s fees in connection with the Merger or related transactions this Agreement contemplates.

     3.8 Absence of Certain Changes or Events. Since June 30, 2010, except as set forth in Section 3.8 of the PFC Disclosure Schedule, (i) PFC and the PFC Subsidiaries have, except in connection with the negotiation and execution and delivery of this Agreement, carried on their respective businesses in all material respects in the ordinary course consistent with past practice and (ii) there has not been any Material Adverse Effect with respect to PFC.

     3.9 Legal Proceedings.

          (a) There is no pending, or, to PFC’s knowledge, threatened, litigation, action, suit, proceeding, investigation or arbitration by any individual, partnership, corporation, trust, joint venture, organization or other entity (each, a “Person”) or Governmental Entity that has had, or is reasonably likely to have a Material Adverse Effect on PFC.

          (b) There is no judgment or regulatory restriction, other than those of general application that apply to similarly situated financial or savings and loan holding companies or their Subsidiaries, that has been imposed upon PFC, any of the PFC Subsidiaries or the assets of PFC or any of the PFC Subsidiaries, that has had, or is reasonably likely to have, a Material Adverse Effect on PFC.

     3.10 Taxes and Tax Returns.

          (a) Each of PFC and the PFC Subsidiaries has duly and timely filed, including all applicable extensions, all Tax Returns (as defined in subsection (c) below) required to be filed by it on or prior to the date of this Agreement, all such Tax Returns being accurate and complete in all material respects, has timely paid or withheld and timely remitted all Taxes shown thereon as arising and has duly and timely paid or withheld and timely remitted all Taxes, whether or not shown on any Tax Return, that are due and payable or claimed to be due from it by a Governmental Entity other than Taxes that (i) are being contested in good faith, which have not been finally determined, and (ii) have been adequately reserved against in accordance with GAAP on PFC’s most recent consolidated financial statements. All required estimated Tax payments sufficient to avoid any underpayment penalties or interest have been made by or on behalf of each of PFC and the PFC Subsidiaries. Neither PFC nor any of the PFC Subsidiaries has granted any extension or waiver of the limitation period for the assessment or collection of Tax that remains in effect. Except as set forth in Section 3.10 of the PFC Disclosure Schedule, there are no disputes, audits, examinations or proceedings in progress or pending, including any notice received of any intent to conduct an audit or examination, or claims asserted, for Taxes upon PFC or any of the PFC Subsidiaries. No claim has been made by a Governmental Entity in a jurisdiction where PFC or any of the PFC Subsidiaries have not filed Tax Returns such that PFC or any of the PFC Subsidiaries is or may be subject to taxation by that jurisdiction. All deficiencies asserted or assessments made as a result of any examinations by any Governmental Entity of the Tax Returns of, or including, PFC or any of the PFC Subsidiaries have been fully paid. No issue has been raised by a Governmental Entity in any prior examination or audit of each of PFC and the PFC Subsidiaries which, by application of the same or similar principles, could reasonably be expected to result in a proposed deficiency in respect of such Governmental Entity for any subsequent taxable period. There are no Liens for Taxes, other than statutory liens for Taxes not yet due and payable, upon any of the assets of PFC or any of the PFC Subsidiaries. Neither PFC nor any of the PFC Subsidiaries is a party to or is bound by any Tax sharing, allocation or indemnification agreement or arrangement, other than such an agreement or arrangement exclusively between or among PFC and the PFC Subsidiaries. Neither PFC nor any of the PFC Subsidiaries (A) has been a member of an affiliated group filing a consolidated federal income Tax Return, other than a group the common parent of which was PFC, or (B) has any liability for the Taxes of any Person, other than PFC or any of the PFC Subsidiaries, under Treas. Reg. §1.1502-6, or any

similar provision of state, local or foreign law, or as a transferee or successor, by contract or otherwise. Neither PFC nor any of the PFC Subsidiaries has been, within the past two years or otherwise as part of a “plan (or series of related transactions)” within the meaning of Section 355(e) of the Code, of which the Merger is also a part, a “distributing corporation” or a “controlled corporation” within the meaning of Section 355(a)(1)(A) of the Code, in a distribution of stock intended to qualify for tax-free treatment under Section 355 of the Code. Except as set forth in Section 3.10(a) of the PFC Disclosure Schedule, no share of PFC Common Stock is owned by a Subsidiary of PFC. PFC is not and has not been a “United States real property holding company” within the meaning of Section 897(c)(2) of the Code during the applicable period specified in Section 897(c)(1)(A)(ii) of the Code. Neither PFC nor any of the PFC Subsidiaries or any other Person on their behalf has executed or entered into any written agreement with, or obtained or applied for any written consents or written clearances or any other Tax rulings from, nor has there been any written agreement executed or entered into on behalf of any of them with any Governmental Entity, relating to Taxes, including any private letter rulings of the U.S. Internal Revenue Service (“IRS”) or comparable rulings of any Governmental Entity and closing agreements pursuant to Section 7121 of the Code or any predecessor provision thereof or any similar provision of any applicable law, which rulings or agreements would have a continuing effect after the Effective Time. Neither PFC nor any of the PFC Subsidiaries has engaged in a “reportable transaction”, as set forth in Treas. Reg. § 1.6011-4(b), or any transaction that is the same as or substantially similar to one of the types of transactions that the IRS has determined to be a tax avoidance transaction and identified by notice, regulation or other form of published guidance as a “listed transaction”, as set forth in Treas. Reg. § 1.6011-4(b)(2). FNB has received complete copies of (i) all federal, state, local and foreign income or franchise Tax Returns of PFC and the PFC Subsidiaries relating to the taxable periods beginning January 1, 2008 or later and (ii) any audit report issued within the last three years relating to any Taxes due from or with respect to PFC or the PFC Subsidiaries. Neither PFC, any of the PFC Subsidiaries nor FNB, as a successor to PFC, will be required to include any item of material income in, or exclude any material item of deduction from, taxable income for any taxable period or portion thereof ending after the Closing Date as a result of any (i) change in method of accounting for a taxable period ending on or prior to the Closing Date, (ii) installment sale or open transaction disposition made on or prior to the Effective Time, (iii) prepaid amount received on or prior to the Closing Date or (iv) deferred intercompany gain or any excess loss account of PFC or any of the PFC Subsidiaries for periods or portions of periods described in Treasury Regulations under Section 1502 of the Code, or any corresponding or similar provision of state, local or foreign law, for periods or portions thereof ending on or before the Closing Date.

          (b) As used in this Agreement, the term “Tax” or “Taxes” means (i) all federal, state, local and foreign income, excise, gross receipts, gross income, ad valorem, profits, gains, property, capital, sales, transfer, use, payroll, bank shares tax, employment, severance, withholding, duties, intangibles, franchise, backup withholding, inventory, capital stock, license, employment, social security, unemployment, excise, stamp, occupation and estimated taxes, and other taxes, charges, levies or like assessments, (ii) all interest, penalties, fines, additions to tax or additional amounts imposed by any Governmental Entity in connection with any item described in clause (i), and (iii) any transferee liability in respect of any items described in clauses (i) or (ii) payable by reason of Contract, assumption, transferee liability,

operation of Law, Treas. Reg §1.1502-6(a) or any predecessor or successor thereof of any analogous or similar provision under law or otherwise.

          (c) As used in this Agreement, the term “Tax Return” means any return, declaration, report, claim for refund, or information return or statement relating to Taxes, including any schedule or attachment thereto, and including any amendment thereof, supplied or required to be supplied to a Governmental Entity and any amendment thereof including, where permitted or required, combined, consolidated or unitary returns for any group of entities.

     3.11 Employee Benefits. For purposes of this Agreement, the following terms shall have the following meanings:

     “Controlled Group Liability” means any and all liabilities (i) under Title IV of ERISA, (ii) under Section 302 of ERISA, (iii) under Sections 412 and 4971 of the Code and (iv) as a result of a failure to comply with the continuation coverage requirements of Section 601 et seq. of ERISA and Section 4980B of the Code other than such liabilities that arise solely out of, or relate solely to, the PFC Benefit Plans.

     “ERISA” means the Employee Retirement Income Security Act of 1974, as amended, and the regulations promulgated thereunder.

     “ERISA Affiliate” means, with respect to any entity, trade or business, any other entity, trade or business that is, or was at the relevant time, a member of a group described in Section 414(b), (c), (m) or (o) of the Code or Section 4001(b)(1) of ERISA that includes or included the first entity, trade or business, or that is, or was at the relevant time, a member of the same “controlled group” as the first entity, trade or business pursuant to Section 4001(a)(14) of ERISA.

     “Multiemployer Plan” means any “multiemployer plan” within the meaning of Section 4001(a)(3) of ERISA.

     “PFC Benefit Plans” means any employee benefit plan, program, policy, practice or other arrangement providing benefits to any current or former employee, officer or director of PFC or any of the PFC Subsidiaries or any beneficiary or dependent thereof that is sponsored or maintained by PFC or any of the PFC Subsidiaries or to which PFC or any of the PFC Subsidiaries contributes or is obligated to contribute, whether or not written, including without limitation any employee welfare benefit plan within the meaning of Section 3(1) of ERISA, any employee pension benefit plan within the meaning of Section 3(2) of ERISA, whether or not such plan is subject to ERISA, and any bonus, incentive, deferred compensation, vacation, stock purchase, stock option, equity compensation, severance, employment, change of control or fringe benefit plan, program or policy.

     “PFC Employment Agreements” means a contract, offer letter or agreement of PFC or any of the PFC Subsidiaries with or addressed to any individual who is rendering or has rendered services thereto as an employee pursuant to which PFC or any of the PFC Subsidiaries has any actual or contingent liability or obligation to provide compensation and/or benefits in consideration for past, present or future services.

     “PFC Plan” means any PFC Benefit Plan other than a Multiemployer Plan.

     “Withdrawal Liability” means liability to a Multiemployer Plan as a result of a complete or partial withdrawal from such Multiemployer Plan, as those terms are defined in Part I of Subtitle E of Title IV of ERISA.

          (a) Section 3.11(a) of the PFC Disclosure Schedule includes a complete list of all PFC Benefit Plans and all PFC Employment Agreements.

          (b) With respect to each PFC Plan, PFC has delivered or made available to FNB a true, correct and complete copy of: (i) each writing constituting a part of such PFC Plan, including without limitation all plan documents, current employee communications, benefit schedules, trust agreements, and insurance contracts and other funding vehicles, (ii) the two most recent Annual Reports (Form 5500 Series) and accompanying schedules, if any, (iii) the current summary plan description and any material modifications thereto, if any, in each case, whether or not required to be furnished under ERISA, (iv) the most recent annual financial report, if any, (v) the most recent actuarial report, if any and (vi) the most recent determination letter from the IRS, if any. PFC has delivered or made available to FNB a true, correct and complete copy of each PFC Employment Agreement.

          (c) All contributions required to be made to any PFC Plan by applicable law or regulation or by any plan document or other contractual undertaking, and all premiums due or payable with respect to insurance policies funding any PFC Plan, for any period through the date of this Agreement have been timely made or paid in full or, to the extent not required to be made or paid on or before the date of this Agreement, have been fully reflected on the financial statements to the extent required by GAAP. Each PFC Benefit Plan that is an employee welfare benefit plan under Section 3(1) of ERISA either (i) is funded through an insurance company contract and is not a “welfare benefit fund” within the meaning of Section 419 of the Code or (ii) is unfunded, as noted in Section 3.11(c) of the PFC Disclosure Schedule.

          (d) With respect to each PFC Plan, PFC and the PFC Subsidiaries have complied, and are now in compliance, in all material respects, with all provisions of ERISA, the Code and all laws and regulations applicable to such PFC Plans. Each PFC Plan has been administered in all material respects in accordance with its terms. There is not now, nor do any circumstances exist that would reasonably be expected to give rise to, any requirement for the posting of security with respect to any PFC Plan or the imposition of any material lien on the assets of PFC or any of the PFC Subsidiaries under ERISA or the Code. Section 3.11(d) of the PFC Disclosure Schedule identifies each PFC Plan that is intended to be a “qualified plan” within the meaning of Section 401(a) of the Code (the “PFC Qualified Plans”). The IRS has issued a favorable determination letter with respect to each PFC Qualified Plan and the related trust which has not been revoked, or PFC is entitled to rely on a favorable opinion issued by the IRS, and, to the knowledge of PFC, there are no existing circumstances and no events have occurred that would reasonably be expected to adversely affect the qualified status of any PFC Qualified Plan or the related trust. No trust funding any PFC Plan is intended to meet the requirements of Code Section 501(c)(9). None of PFC and the PFC Subsidiaries nor any other person, including any fiduciary, has engaged in any “prohibited transaction”, as defined in Section 4975 of the Code or Section 406 of ERISA, which would reasonably be expected to

subject any of the PFC Plans or their related trusts, PFC, any of the PFC Subsidiaries or any person that PFC or any of PFC Subsidiaries has an obligation to indemnify, to any material Tax or penalty imposed under Section 4975 of the Code or Section 502 of ERISA.

          (e) Except as set forth in Section 3.11(e) of the PFC Disclosure Schedule with respect to each PFC Plan that is subject to Title IV or Section 302 of ERISA or Section 412 or 4971 of the Code, (i) there does not exist any accumulated funding deficiency within the meaning of Section 412 of the Code or Section 302 of ERISA, whether or not waived, and (ii) (A) the fair market value of the assets of such PFC Plan equals or exceeds the actuarial present value of all accrued benefits under such PFC Plan, whether or not vested, on a termination basis, (B) no reportable event within the meaning of Section 4043(c) of ERISA for which the 30-day notice requirement has not been waived has occurred, (C) all premiums, if any, to the Pension Benefit Guaranty Corporation (the “PBGC”) have been timely paid in full, (D) no liability, other than for premiums to the PBGC, under Title IV of ERISA has been or would reasonably be expected to be incurred by PFC or any of PFC Subsidiaries and (E) the PBGC has not instituted proceedings to terminate any such PFC Plan and, to PFC’s knowledge, no condition exists that makes it reasonably likely that such proceedings will be instituted or which would reasonably be expected to constitute grounds under Section 4042 of ERISA for the termination of, or the appointment of a trustee to administer, any such PFC Plan.

          (f) (i) No PFC Benefit Plan is a Multiemployer Plan or a plan that has two or more contributing sponsors at least two of whom are not under common control, within the meaning of Section 4063 of ERISA (a “Multiple Employer Plan”), (ii) none of PFC and the PFC Subsidiaries nor any of their respective ERISA Affiliates has, at any time during the last six years, contributed to or been obligated to contribute to any Multiemployer Plan or Multiple Employer Plan and (iii) none of PFC and the PFC Subsidiaries nor any of their respective ERISA Affiliates has incurred, during the last six years, any Withdrawal Liability that has not been satisfied in full. There does not now exist, nor do any circumstances exist that would reasonably be likely to result in, any Controlled Group Liability that would be a liability of PFC or any of the PFC Subsidiaries following the Effective Time, other than such liabilities that arise solely out of, or relate solely to, the PFC Benefit Plans. Without limiting the generality of the foregoing, neither PFC nor any of the PFC Subsidiaries, nor, to PFC’s knowledge, any of their respective ERISA Affiliates, has engaged in any transaction described in Sections 4069, 4204 or 4212 of ERISA.

          (g) Except as set forth in Section 3.11(g) of the PFC Disclosure Schedule, PFC and the PFC Subsidiaries have no liability for life, health, medical or other welfare benefits to former employees or beneficiaries or dependents thereof, except for health continuation coverage as required by Section 4980B of the Code, Part 6 of Title I of ERISA or applicable law and at no expense to PFC and the PFC Subsidiaries.

          (h) Except as set forth in Section 3.11(h) of the PFC Disclosure Schedule, neither the execution nor the delivery of this Agreement nor the consummation of the transactions this Agreement contemplates will, either alone or in conjunction with any other event, whether contingent or otherwise, (i) result in any payment or benefit becoming due or payable, or required to be provided, to any director, employee or independent contractor of PFC or any of PFC Subsidiaries, (ii) increase the amount or value of any benefit or compensation

otherwise payable or required to be provided to any such director, employee or independent contractor, (iii) result in the acceleration of the time of payment, vesting or funding of any such benefit or compensation including deferred compensation, or (iv) result in any amount failing to be deductible by reason of Section 280G of the Code or would be subject to an excise tax under Section 4999 of the Code or additional tax under Section 409A of the Code.

          (i) No labor organization or group of employees of PFC or any of PFC Subsidiaries has made a pending demand for recognition or certification, and there are no representation or certification proceedings or petitions seeking a representation proceeding presently pending or, to PFC’s knowledge, threatened to be brought or filed, with the National Labor Relations Board. Each of PFC and the PFC Subsidiaries is in material compliance with all applicable laws respecting employment and employment practices, terms and conditions of employment, wages and hours and occupational safety and health.

     3.12 Compliance with Applicable Law. PFC and each of the PFC Subsidiaries are not in default in any material respect under any applicable law, statute, order, rule, regulation, policy or guideline of any Governmental Entity applicable to PFC or any of PFC Subsidiaries (collectively, “Laws”), including the Equal Credit Opportunity Act, the Fair Housing Act, the Community Reinvestment Act, the Home Mortgage Disclosure Act, the Uniting and Strengthening America by Providing Appropriate Tools Required to Intercept and Obstruct Terrorist (USA Patriot) Act of 2001, the Bank Secrecy Act, the Dodd-Frank Wall Street Reform and Consumer Protection Act and applicable limits on loans to one borrower, except where such noncompliance or default is not reasonably likely to have, either individually or in the aggregate, a Material Adverse Effect on PFC. PFC and each of the PFC Subsidiaries has been and is in compliance in all material respects with (i) the applicable provisions of the Sarbanes-Oxley Act and (ii) the applicable listing and corporate governance rules and regulations of the NASDAQ. Section 3.12 of PFC Disclosure Schedule sets forth, as of June 7, 2011, a schedule of all executive officers and directors of PFC who have outstanding loans from PFC Bank, and there has been no default on, or forgiveness or waiver of, in whole or in part, any such loan during the two years immediately preceding the date hereof.

     3.13 Contracts. Except for matters that have not had and would not reasonably be likely to have, individually or in the aggregate, a Material Adverse Effect on PFC, (a) none of PFC nor any of the PFC Subsidiaries is, with or without the lapse of time or the giving of notice, or both, in breach or default in any material respect under any material contract, lease, license or other agreement or instrument, (b) to the knowledge of PFC, none of the other parties to any such material contract, lease, license or other agreement or instrument is, with or without the lapse of time or the giving of notice, or both, in breach or default in any material respect thereunder, and (c) neither PFC nor any of the PFC Subsidiaries has received any written notice of the intention of any party to terminate or cancel any such material contract, lease, license or other agreement or instrument whether as a termination or cancellation for convenience or for default of PFC or any of the PFC Subsidiaries.

     3.14 Agreements with Regulatory Agencies. Except to the extent disclosure hereunder is precluded by applicable law and except as set forth in Section 3.14 of the PFC Disclosure Schedule, neither PFC nor any of the PFC Subsidiaries is subject to any cease-and-desist or other order or enforcement action issued by, or is a party to any written agreement, consent agreement

or memorandum of understanding with, or is a party to any commitment letter or similar undertaking to, or is subject to any order or directive by, or has been ordered to pay any civil money penalty by, or has been since July 1, 2008, a recipient of any supervisory letter from, or since July 1, 2008, has adopted any policies, procedures or board resolutions at the request or suggestion of any Regulatory Agency or other Governmental Entity that currently restricts in any material respect the conduct of its business or that in any material manner relates to its capital adequacy, its ability to pay dividends, its credit or risk management policies, or its management or its business, other than those of general application that apply to similarly situated financial holding companies or their Subsidiaries (each item in this sentence (including, without limitation, any item relating to participation of PFC or any of the PFC Subsidiaries in the Capital Purchase Program of the Treasury Department), whether or not set forth in Section 3.14 of the PFC Disclosure Schedule, (a “PFC Regulatory Agreement”), nor has PFC or any of the PFC Subsidiaries been advised since July 1, 2008 by any Regulatory Agency or other Governmental Entity that it is considering issuing, initiating, ordering or requesting any such PFC Regulatory Agreement.

     3.15 Undisclosed Liabilities. Neither PFC nor any of its Subsidiaries has, and since June 30, 2010, neither PFC nor any of its Subsidiaries has incurred, any liabilities or obligations, whether accrued, absolute, contingent or otherwise, known or unknown, whether due or to become due, except (i) those liabilities fully accrued or reserved against in the unaudited consolidated balance sheet of PFC and its Subsidiaries as of March 31, 2011 included in the PFC Reports, (ii) for liabilities and obligations incurred in the ordinary course of business consistent with past practice since March 31, 2011, (iii) for liabilities and obligations that are not material to PFC and its Subsidiaries, taken as a whole, and (iv) for any liabilities incurred with respect to the transactions contemplated by this Agreement

     3.16 Environmental Liability.

          (a) To PFC’s knowledge, (i) PFC and the PFC Subsidiaries are in material compliance with applicable Environmental Laws, (ii) no Contamination exceeding applicable cleanup standards or remediation thresholds exists at real property, including buildings or other structures, currently or formerly owned or operated by PFC or any of PFC Subsidiaries, that reasonably could result in a material Environmental Liability for PFC or the PFC Subsidiaries, (iii) no Contamination exists at any real property currently owned by a third party that reasonably could result in a material Environmental Liability for PFC or the PFC Subsidiaries, (iv) neither PFC nor any of the PFC Subsidiaries has received any written notice, demand letter, or claim alleging any material violation of, or liability under, any Environmental Law, (v) neither PFC nor any of the PFC Subsidiaries is subject to any order, decree, injunction or other agreement with any Governmental Entity or any third party under any Environmental Law that reasonably could result in a material Environmental Liability of PFC or the PFC Subsidiaries and (vi) PFC has listed in Section 3.16 of the PFC Disclosure Schedule (and made available to FNB copies of) all environmental reports or studies, sampling data, correspondence and filings in its possession relating to PFC, the PFC Subsidiaries and any currently owned or operated real property of PFC which were prepared in the last five years.

          (b) As used in this Agreement, (i) the term “Environmental Laws” means collectively any and all laws, ordinances, rules, regulations, directives, orders, authorizations,

decrees, permits or other mandates of a Governmental Entity relating to any Hazardous Substance, Contamination, protection of the Environment or protection of human health and safety, including, without limitation, those relating to emissions, discharges or releases or threatened emissions, discharges or releases to, on, onto or into the environment of any Hazardous Substance, (ii) the term “Hazardous Substance” means any element, substance, compound or mixture whether solid, liquid or gaseous that is subject to regulation by any Governmental Entity under any Environmental Law, or the presence or existence of which gives rise to any Environmental Liability, (iii) the term “Contamination” means the emission, discharge or release of any Hazardous Substance to, on, onto or into the environment and the effects of such emission, discharge or release, including the presence or existence of any such Hazardous Substance and (iv) the term “Environmental Liability” means liabilities for response, remedial or investigation costs, and any other expenses, including reasonable attorney and consultant fees, laboratory costs and litigation costs, required under, or necessary to attain or maintain compliance with, applicable Environmental Laws or relating to or arising from Contamination or Hazardous Substances.

     3.17 Real Property.

          (a) Each of PFC and the PFC Subsidiaries has good and marketable title free and clear of all Liens to all real property owned by such entity (the “Owned Properties”), except for Liens that do not materially detract from the present use of such real property.

          (b) A true and complete copy of each agreement pursuant to which PFC or any of PFC Subsidiaries leases any real property (such agreements, together with any amendments, modifications and other supplements thereto, collectively, the “Leases”), has heretofore been made available to FNB. Each Lease is valid, binding and enforceable against PFC or the PFC Subsidiary party thereto, as the case may be, in accordance with its terms and is in full force and effect, except as may be limited by bankruptcy, insolvency, moratorium, reorganization or similar laws affecting the rights of creditors generally and the availability of equitable remedies. There is not under any such Lease any material existing default by PFC or any of the PFC Subsidiaries or, to the knowledge of PFC, any other party thereto, or any event which with notice or lapse of time or both would constitute such a default. The consummation of the transactions this Agreement contemplates will not cause defaults under the Leases, provided necessary consents disclosed in the PFC Disclosure Schedule have been obtained and are in effect, except for any such default which would not, individually or in the aggregate, have a Material Adverse Effect on PFC.

          (c) The Owned Properties and the properties leased pursuant to the Leases (the “Leased Properties”) constitute all of the real estate on which PFC and the PFC Subsidiaries maintain their facilities or conduct their business as of the date of this Agreement, except for locations the loss of which would not result in a Material Adverse Effect on PFC.

          (d) A true and complete copy of each agreement pursuant to which PFC or any of the PFC Subsidiaries leases real property to a third party (“Third Party”), such agreements, together with any amendments, modifications and other supplements thereto (collectively, the “Third Party Leases”), has heretofore been made available to FNB. Each Third Party Lease is valid, binding and enforceable in accordance with its terms and is in full

force and effect, except as may be limited by bankruptcy, insolvency, moratorium, reorganization or similar laws affecting the rights of creditors generally and the availability of equitable remedies. To the knowledge of PFC, there are no existing defaults by the tenant under any Third Party Lease, and no event has occurred which with notice or lapse of time or both would constitute such a default or which individually or in the aggregate would have a Material Adverse Effect on PFC.

     3.18 State Takeover Laws. PFC has previously taken any and all action necessary to render the provisions of the Pennsylvania anti-takeover statutes in Sections 2538 through 2588 inclusive of the PBCL that may be applicable to the Merger and the other transactions this Agreement contemplates inapplicable to FNB and its respective affiliates, and to the Merger, this Agreement and the transactions this Agreement contemplates. The Board of Directors of PFC has approved this Agreement and the transactions this Agreement contemplates as required to render inapplicable to this Agreement and the transactions contemplated by this Agreement any restrictive provisions in PFC’s Articles or PFC’s Bylaws.

     3.19 Reorganization. As of the date of this Agreement, PFC is not aware of any fact or circumstance that could reasonably be expected to prevent the Merger from qualifying as a “reorganization” within the meaning of Section 368(a) of the Code.

     3.20 Opinion. Prior to the execution of this Agreement, PFC has received an opinion from Keefe, Bruyette & Woods, Inc. to the effect that as of the date thereof and based upon and subject to the matters set forth in this Agreement, the Merger Consideration is fair to the shareholders of PFC from a financial point of view. Such opinion has not been amended or rescinded as of the date of this Agreement.

     3.21 Insurance. PFC and the PFC Subsidiaries are insured with reputable insurers against such risks and in such amounts as are set forth in Section 3.21 of the PFC Disclosure Schedule and as their management reasonably have determined to be prudent in accordance with industry practices.

     3.22 Investment Securities. Except where failure to be true would not reasonably be expected to have a Material Adverse Effect on PFC, (a) each of PFC and the PFC Subsidiaries has good title to all securities owned by it, except those securities sold under repurchase agreements securing deposits, borrowings of federal funds or borrowings from the Federal Reserve Banks or the Federal Home Loan Banks or held in any fiduciary or agency capacity, free and clear of any Liens, except to the extent such securities are pledged in the ordinary course of business to secure obligations of PFC or the PFC Subsidiaries, and (b) such securities are valued on the books of PFC in accordance with GAAP in all material respects.

     3.23 Intellectual Property. PFC and each of the PFC Subsidiaries owns, or is licensed to use, in each case, free and clear of any Liens, all Intellectual Property used in the conduct of its business as currently conducted that is material to PFC and the PFC Subsidiaries, taken as a whole. Except as would not reasonably be likely to have a Material Adverse Effect on PFC, (a) Intellectual Property used in the conduct of the business of PFC or any PFC Subsidiary as currently conducted that is material to PFC and such PFC Subsidiary does not, to the knowledge of PFC, infringe on or otherwise violate the rights of any person and is in accordance with any

applicable license pursuant to which PFC or any such PFC Subsidiary acquired the right to use any Intellectual Property and (b) neither PFC nor any of the PFC Subsidiaries has received any written notice of any pending claim with respect to any Intellectual Property used by PFC and the PFC Subsidiaries. For purposes of this Agreement, “Intellectual Property” means registered trademarks, service marks, brand names, certification marks, trade dress and other indications of origin, the goodwill associated with the foregoing and registrations in the United States Patent and Trademark Office or in any similar office or agency of the United States or any state thereof, all letters patent of the United States and all reissues and extensions thereof.

     3.24 Loans; Nonperforming and Classified Assets.

          (a) Each loan or other extension of credit (“Loan”) on the books and records of PFC or any PFC Subsidiary (i) is evidenced in all material respects by appropriate and sufficient documentation, (ii) to the extent secured, has been secured by valid liens and security interests which have been perfected in accordance with all applicable Laws, and (iii) to the knowledge of PFC, is a legal, valid and binding obligation of the obligor named therein, enforceable in accordance with its terms, subject to bankruptcy, insolvency, reorganization, moratorium, fraudulent conveyance and other laws of general applicability relating to or affecting creditors’ rights and to general equity principles.

          (b) Each outstanding Loan (including Loans held for resale) was made and has been serviced, and the relevant Loan files are being maintained, in all material respects in accordance with the relevant notes or other credit or security documents, PFC’s written underwriting standards (and, in the case of Loans held for resale, the underwriting standards, if any, of the applicable investors) and with all applicable requirements of Laws.

          (c) None of the agreements, if any, pursuant to which PFC or PFC Bank has sold Loans or pools of Loans or participation interests in Loans or pools of Loans contains any obligation to repurchase such Loans or interests therein solely on account of a payment default by the obligor on any such Loan.

          (d) PFC Bank’s allowance for loan losses is sufficient at the date of this Agreement for its reasonably anticipated loan losses, is in compliance with the standards established by applicable Governmental Entities and GAAP and, to the knowledge of PFC, is adequate.

          (e) PFC has set forth in Section 3.24 of the PFC Disclosure Schedule as to PFC and each PFC Subsidiary as of the latest practicable date prior to the date of this Agreement: (i) any written or, to PFC’s knowledge, oral Loan under the terms of which the obligor is 90 or more days delinquent in payment of principal or interest, or to PFC’s knowledge, in default of any other material provision thereof, (ii) each Loan that has been classified as “substandard”, “doubtful”, “loss” or “special mention” or words of similar import by PFC, a PFC Subsidiary or an applicable regulatory authority, (iii) a listing of the Other Real Estate Owned (“OREO”) acquired by foreclosure or by deed-in-lieu thereof, including the book value thereof and (iv) each Loan with any director, executive officer or five percent or greater shareholder of PFC or a PFC Subsidiary, or to the knowledge of PFC, any Person controlling, controlled by or under common control with any of the foregoing. PFC agrees to update such

list on a monthly basis after the date of this Agreement and until the earlier of the Closing Date or the date that this Agreement is terminated in accordance with its terms.

          (f) Neither PFC nor PFC Bank has been notified by any state or federal bank regulatory agency that its reserves are inadequate or that the practices and policies of PFC in establishing its reserves for the year ended June 30, 2010 and the nine months ended March 31, 2011, and in accounting for delinquent and classified assets generally fail to comply with applicable accounting or regulatory requirements, or that any Regulatory Agency having jurisdiction or PFC’s independent auditor believes such reserves to be inadequate or inconsistent with the historical loss experience of PFC.

     3.25 Fiduciary Accounts. PFC and each of the PFC Subsidiaries has properly administered all accounts for which it acts as a fiduciary, including but not limited to accounts for which it serves as a trustee, agent, custodian, personal representative, guardian, conservator or investment advisor, in accordance with the terms of the governing documents and applicable laws and regulations. To PFC’s knowledge, neither PFC nor any of the PFC Subsidiaries, nor any of their respective directors, officers or employees, has committed any breach of trust with respect to any fiduciary account and the records for each such fiduciary account are true and correct and accurately reflect the assets of such fiduciary account.

ARTICLE 4

REPRESENTATIONS AND WARRANTIES OF FNB

     Except as disclosed in the disclosure schedule delivered by FNB to PFC (the “FNB Disclosure Schedule”), FNB hereby represents and warrants to PFC as follows:

     4.1 Corporate Organization.

          (a) FNB is a corporation duly organized, validly existing and in good standing under the laws of the State of Florida. FNB has the corporate power and authority and has all licenses, permits and authorizations of applicable Governmental Entities required to own or lease all of its properties and assets and to carry on its business as it is now being conducted, and is duly licensed or qualified to do business in each jurisdiction in which the nature of the business conducted by it or the character or location of the properties and assets owned or leased by it makes such licensing or qualification necessary, except where such failure to be licensed or qualified does not have a Material Adverse Effect upon FNB.

          (b) FNB is duly registered as a bank holding company and is a financial holding company under the BHC Act. True and complete copies of the Articles of Incorporation (the “FNB Charter”) and Bylaws of FNB (the “FNB Bylaws”), as in effect as of the date of this Agreement, have previously been made available to PFC.

          (c) Each FNB Subsidiary (i) is duly organized and validly existing under the laws of its jurisdiction of organization, (ii) is duly qualified to do business and in good standing in all jurisdictions, whether federal, state, local or foreign, where its ownership or leasing of property or the conduct of its business requires it to be so qualified and (iii) has all requisite corporate power and authority, and has all licenses, permits and authorizations of applicable

Governmental Entities required, to own or lease its properties and assets and to carry on its business as now conducted, except in each of clauses (i) — (iii) as would not be reasonably likely to have, either individually or in the aggregate, a Material Adverse Effect on FNB.

     4.2 Capitalization.

          (a) The authorized capital stock of FNB consists of 500,000,000 shares of FNB Common Stock, of which, as of May 31, 2011, 126,908,669 shares were issued and outstanding, and 20,000,000 shares of preferred stock, $0.01 par value (the “FNB Preferred Stock”), of which, as of the date of this Agreement, no shares were issued and outstanding. As of May 31, 2011, 213,973 shares of FNB Common Stock were held in FNB’s treasury. As of the date hereof, no shares of FNB Common Stock or FNB Preferred Stock were reserved for issuance, except for 629,187 shares of FNB Common Stock reserved for issuance upon exercise of options issued or available for issuance pursuant to employee and director stock plans of FNB in effect as of the date of this Agreement (the “FNB Stock Plans”) and 651,042 shares of FNB Common Stock reserved for issuance pursuant to warrants issued to the United States Treasury Department. All of the issued and outstanding shares of FNB Common Stock have been, and all shares of FNB Common Stock that may be issued pursuant to the FNB Stock Plans will be, when issued in accordance with the terms thereof, duly authorized and validly issued and fully paid, non-assessable and free of preemptive rights, with no personal liability attaching to the ownership thereof. Except pursuant to this Agreement, the FNB Stock Plans and warrants FNB issued to the United States Treasury Department, FNB is not bound by any outstanding subscriptions, options, warrants, calls, commitments or agreements of any character calling for the purchase or issuance of any shares of FNB Common Stock or any other equity securities of FNB or any securities representing the right to purchase or otherwise receive any shares of FNB Common Stock. The shares of FNB Common Stock to be issued pursuant to the Merger have been duly authorized and, when issued and delivered in accordance with the terms of this Agreement, will have been validly issued, fully paid, non-assessable and free of preemptive rights.

          (b) All of the issued and outstanding shares of capital stock or other equity ownership interests of each Subsidiary of FNB are owned by FNB, directly or indirectly, free and clear of any Liens, and all of such shares or equity ownership interests are duly authorized and validly issued and are fully paid, non-assessable and free of preemptive rights. No such Subsidiary has or is bound by any outstanding subscriptions, options, warrants, calls, commitments or agreements of any character calling for the purchase or issuance of any shares of capital stock or any other equity security of such Subsidiary or any securities representing the right to purchase or otherwise receive any shares of capital stock or any other equity security of such Subsidiary.

     4.3 Authority; No Violation.

          (a) FNB has full corporate power and authority to execute and deliver this Agreement and to consummate the transactions this Agreement contemplates. The execution and delivery of this Agreement and the consummation of the transactions this Agreement contemplates have been duly and validly approved by the Board of Directors of FNB and no other corporate approvals on the part of FNB are necessary to approve this Agreement. This

Agreement has been duly and validly executed and delivered by FNB and, assuming due authorization, execution and delivery by PFC, constitutes a valid and binding obligation of FNB, enforceable against FNB in accordance with its terms, except as may be limited by bankruptcy, insolvency, moratorium, reorganization or similar laws affecting the rights of creditors generally and the availability of equitable remedies.

          (b) Neither the execution and delivery of this Agreement by FNB, nor the consummation by FNB of the transactions this Agreement contemplates, nor compliance by FNB with any of the terms or provisions of this Agreement, will (i) violate any provision of the FNB Charter or the FNB Bylaws or (ii) assuming that the consents, approvals and filings referred to in Section 4.4 are duly obtained and/or made and are in full force and effect, (A) violate any statute, code, ordinance, rule, regulation, judgment, order, writ, decree or Injunction applicable to FNB, any of its Subsidiaries or any of their respective properties or assets or (B) violate, conflict with, result in a breach of any provision of, constitute a default, or an event which, with notice or lapse of time, or both, would constitute a default, under, result in the termination of or a right of termination or cancellation under, accelerate the performance required by, or result in the creation of any Lien upon any of the respective properties or assets of FNB or any of its Subsidiaries under, any of the terms, conditions or provisions of any note, bond, mortgage, indenture, deed of trust, license, lease, agreement or other instrument or obligation to which FNB or any of its Subsidiaries is a party, or by which they or any of their respective properties or assets may be bound or affected, except for such violations, conflicts, breaches or defaults with respect to clause (ii) that are not reasonably likely to have, either individually or in the aggregate, a Material Adverse Effect on FNB.

     4.4 Consents and Approvals. Except for (i) the filing of applications and notices, as applicable, with the Federal Reserve Board under the BHC Act and the Federal Reserve Act, as amended, and approval of such applications and notices, and, in connection with the acquisition of the Bank by FNB, the filing of applications and notices, as applicable, with the FDIC, the OCC or the PA DOB and approval of such applications and notices, (ii) the Other Regulatory Approvals, (iii) the filing with the SEC of the Proxy Statement and the filing and declaration of effectiveness of the Registration Statement, (iv) the filing of the Articles of Merger with and the acceptance for record by the Secretary of State of the Commonwealth of Pennsylvania pursuant to the PBCL and the filing of the Articles of Merger with and the acceptance for record by the Secretary of State of the State of Florida pursuant to the FBCA, (v) any notices or filings under the HSR Act, (vi) any consents, authorizations, approvals, filings or exemptions in connection with compliance with the applicable provisions of federal and state securities laws and the rules and regulations thereunder and of any applicable industry SRO, and the rules of NASDAQ or the NYSE, or that are required under consumer finance, mortgage banking and other similar laws, and (vii) such filings and approvals as are required to be made or obtained under the securities or “Blue Sky” laws of various states in connection with the issuance of the shares of FNB Common Stock pursuant to this Agreement and approval of listing such FNB Common Stock on the NYSE, no consents or approvals of or filings or registrations with any Governmental Entity are necessary in connection with (A) the execution and delivery by FNB of this Agreement and (B) the consummation by FNB of the Merger and the other transactions this Agreement contemplates.

     4.5 Reports. FNB and each of its Subsidiaries have in all material respects timely filed all reports, registrations and statements, together with any amendments required to be made with respect thereto, that they were required to file since January 1, 2009 with the Regulatory Agencies and with each other applicable Governmental Entity, including the SEC, and all other reports and statements required to be filed by them since January 1, 2009, including any report or statement required to be filed pursuant to the laws, rules or regulations of the United States, any state, any foreign entity, or any Regulatory Agency, and have paid all fees and assessments due and payable in connection therewith. Except for normal examinations conducted by a Regulatory Agency in the ordinary course of the business of FNB and its Subsidiaries, no Regulatory Agency has initiated or has pending any proceeding or, to the knowledge of FNB, investigation into the business or operations of FNB or any of its Subsidiaries since January 1, 2009. There is no unresolved material violation, criticism or exception by any Regulatory Agency with respect to any report or statement relating to any examinations or inspections of FNB or any of its Subsidiaries.

     4.6 SEC Reports; Financial Statements.

          (a) FNB has filed or furnished on a timely basis with the SEC all material forms, reports, schedules, statements and other documents required to be filed or furnished by them under the Securities Act, under the Exchange Act, or under the securities regulations of the SEC, with the SEC since January 1, 2009 (all such filed or furnished documents, together with all exhibits and schedules thereto and all information incorporated therein by reference, the “FNB Reports”). As of their respective filing dates (and, in the case of registration statements and proxy statements, as of the dates of effectiveness and the dates of mailing, respectively), except to the extent that any FNB Report has been amended by a subsequently filed FNB Report prior to the date hereof, in which case, as of the date of such amendment, (i) the FNB Reports complied in all material respects with the applicable requirements of the Securities Act, the Exchange Act and the Sarbanes-Oxley Act of 2002, as the case may be, and (ii) none of the FNB Reports contained any untrue statement of a material fact or omitted to state a material fact required to be stated therein or necessary in order to make the statements therein, in light of the circumstances under which they were made, not misleading. None of FNB’s Subsidiaries is required to file periodic reports with the SEC pursuant to Section 13 or 15(d) of the Exchange Act.

          (b) The financial statements (including the related notes thereto) included (or incorporated by reference) in the FNB Reports comply as to form in all material respects with applicable accounting requirements and the published rules and regulations of the SEC with respect thereto, have been prepared in accordance with GAAP (except, in the case of unaudited statements, as permitted by Form 10-Q of the SEC) applied on a consistent basis during the periods involved (except as may be expressly indicated in the notes thereto) and fairly present in all material respects the consolidated financial position of FNB and its Subsidiaries as of the dates thereof and their respective consolidated results of operations, changes in shareholders’ equity and changes in cash flows for the periods then ended (subject, in the case of unaudited statements, to normal and recurring year-end audit adjustments that were not, or are not expected to be, material in amount), all in accordance with GAAP and the applicable rules and regulations promulgated by the SEC.

          (c) As of the date of this Agreement, there are no outstanding comments from or unresolved issues raised by the SEC staff with respect to the FNB Reports.

          (d) The books and records of FNB and its Subsidiaries have been, and are being, maintained in all material respects in accordance with applicable legal and accounting requirements and reflect only actual transactions. The records, systems, controls, data and information of FNB and its Subsidiaries are recorded, stored, maintained and operated under means (including any electronic, mechanical or photographic process, whether computerized or not) that are under the exclusive ownership and direct control of FNB or its Subsidiaries or accountants (including all means of access thereto and therefrom), except for any non-exclusive ownership and non-direct control that would not reasonably be expected to have a material adverse effect on the system of internal accounting controls described in the following sentence. FNB and its Subsidiaries have implemented and maintain a system of internal accounting controls effective to provide reasonable assurances regarding the reliability of financial reporting and the preparation of financial statements in accordance with GAAP. FNB (i) has implemented and maintains disclosure controls and procedures (as defined in Rules 13a-15(e) and 15d-15(e) of the Exchange Act) effective to ensure that material information relating to PFC, including its consolidated Subsidiaries, is made known to the Chief Executive Officer and the Chief Financial Officer of FNB by others within those entities to allow timely decisions regarding required disclosure and to make the certifications required by the Exchange Act with respect to the FNB Reports and (ii) has disclosed, based on its most recent evaluation prior to the date of this Agreement, to FNB’s outside auditors and the audit committee of the board of directors of FNB (A) any significant deficiencies and material weaknesses in the design or operation of internal controls over financial reporting (as defined in Rule 13a-15(f) of the Exchange Act) that would be reasonably likely to adversely affect FNB’s ability to accurately record, process, summarize and report financial information and (B) any fraud, whether or not material, that involves management or other employees who have a significant role in FNB’s internal controls over financial reporting.

          (e) Since January 1, 2009, (A) neither FNB nor any of its Subsidiaries nor, to the knowledge of FNB, any director, officer, employee, auditor, accountant or representative of it or any of its Subsidiaries has received or otherwise had or obtained knowledge of any material complaint, allegation, assertion or claim, whether written or oral, regarding the accounting or auditing practices, procedures, methodologies or methods of FNB or any of its Subsidiaries or their respective internal accounting controls, including any material complaint, allegation, assertion or claim that FNB or any of its Subsidiaries has engaged in questionable accounting or auditing practices, and (B) no attorney representing FNB or any of its Subsidiaries, whether or not employed by FNB or any of its Subsidiaries, has reported evidence of a material violation of securities laws, breach of fiduciary duty or similar violation by FNB or any of its officers, directors, employees or agents to the board of directors of FNB or any committee thereof or to any of FNB’s directors or officers.

     4.7 Broker’s Fees. Except as set forth in Section 4.7 of the FNB Disclosure Schedule, neither FNB nor any FNB Subsidiary nor any of their respective officers or directors has employed any broker or finder or incurred any liability for any brokers fees, commissions or finder’s fees in connection with the Merger or related transactions this Agreement contemplates.

     4.8 Absence of Certain Changes or Events. Since December 31, 2010, except as publicly disclosed in the Forms 10-K, 10-Q and 8-K comprising the FNB Reports (as defined in Section 4.6(a)) filed prior to the date of this Agreement (i) FNB and the FNB Subsidiaries have, except in connection with the negotiation and execution and delivery of this Agreement, carried on their respective businesses in all material respects in the ordinary course consistent with past practice and (ii) there has not been any Material Adverse Effect with respect to FNB.

     4.9 Legal Proceedings.

          (a) There is no pending, or, to FNB’s knowledge, threatened, litigation, action, suit, proceeding, investigation or arbitration by any Person or Governmental Entity that has had, or is reasonably likely to have, a Material Adverse Effect on FNB.

          (b) There is no judgment or regulatory restriction, other than those of general application that apply to similarly situated financial or bank holding companies or their Subsidiaries, that has been imposed upon FNB, any of its Subsidiaries or the assets of FNB or any of its Subsidiaries that has had or is reasonably likely to have, a Material Adverse Effect on FNB.

     4.10 Taxes and Tax Returns. Each of FNB and its Subsidiaries has duly and timely filed, including all applicable extensions, all Tax Returns required to be filed by it on or prior to the date of this Agreement, all such Tax Returns being accurate and complete in all material respects, has timely paid or withheld and timely remitted all Taxes shown thereon as arising and has duly and timely paid or withheld and timely remitted all Taxes, whether or not shown on any Tax Return, that are due and payable or claimed to be due from it by a Governmental Entity other than Taxes that (i) are being contested in good faith, which have not been finally determined, and (ii) have been adequately reserved against in accordance with GAAP on FNB’s most recent consolidated financial statements. All required estimated Tax payments sufficient to avoid any underpayment penalties or interest have been made by or on behalf of each of FNB and its Subsidiaries. Neither FNB nor any of its Subsidiaries has granted any extension or waiver of the limitation period for the assessment or collection of Tax that remains in effect. There are no disputes, audits, examinations or proceedings in progress or pending, including any notice received of an intent to conduct an audit or examination, or claims asserted, for Taxes upon FNB or any of its Subsidiaries. No claim has been made by a Governmental Entity in a jurisdiction where FNB or any of its Subsidiaries has not filed Tax Returns such that FNB or any of its Subsidiaries is or may be subject to taxation by that jurisdiction. All deficiencies asserted or assessments made as a result of any examinations by any Governmental Entity of the Tax Returns of, or including, FNB or any of its Subsidiaries have been fully paid. No issue has been raised by a Governmental Entity in any prior examination or audit of each of FNB and its Subsidiaries which, by application of the same or similar principles, could reasonably be expected to result in a proposed deficiency in respect of such Governmental Entity for any subsequent taxable period. There are no Liens for Taxes, other than statutory liens for Taxes not yet due and payable, upon any of the assets of FNB or any of its Subsidiaries. Neither FNB nor any of its Subsidiaries is a party to or is bound by any Tax sharing, allocation or indemnification agreement or arrangement, other than such an agreement or arrangement exclusively between or

among FNB and its Subsidiaries. Neither FNB nor any of its Subsidiaries (A) has been a member of an affiliated group filing a consolidated federal income Tax Return, other than a group the common parent of which was FNB, or (B) has any liability for the Taxes of any Person, other than FNB or any of its Subsidiaries, under Treas. Reg. §1.1502-6, or any similar provision of state, local or foreign law, or as a transferee or successor, by contract or otherwise. Neither FNB nor any of its Subsidiaries has been, within the past two years or otherwise as part of a “plan (or series of related transactions)” within the meaning of Section 355(e) of the Code, of which the Merger is also a part, a “distributing corporation” or a “controlled corporation” within the meaning of Section 355(a)(1)(A) of the Code), in a distribution of stock intended to qualify for tax-free treatment under Section 355 of the Code. No share of FNB Common Stock is owned by a Subsidiary of FNB. FNB is not and has not been a “United States real property holding company” within the meaning of Section 897(c)(2) of the Code during the applicable period specified in Section 897(c)(1)(A)(ii) of the Code. Neither FNB, its Subsidiaries nor any other Person on their behalf has executed or entered into any written agreement with, or obtained or applied for any written consents or written clearances or any other Tax rulings from, nor has there been any written agreement executed or entered into on behalf of any of them with any Taxing Authority, relating to Taxes, including any IRS private letter rulings or comparable rulings of any Taxing Authority and closing agreements pursuant to Section 7121 of the Code or any predecessor provision thereof or any similar provision of any applicable law, which rulings or agreements would have a continuing effect after the Effective Time. Neither FNB nor any of its Subsidiaries has engaged in a “reportable transaction,” as set forth in Treas. Reg. §1.6011-4(b), or any transaction that is the same as or substantially similar to one of the types of transactions that the IRS has determined to be a tax avoidance transaction and identified by notice, regulation or other form of published guidance as a “listed transaction,” as set forth in Treas. Reg. §1.6011-4(b)(2). PFC has received complete copies of (i) all federal, state, local and foreign income or franchise Tax Returns of FNB and its Subsidiaries relating to the taxable periods beginning January 1, 2008 or later and (ii) any audit report issued within the last three years relating to any Taxes due from or with respect to FNB or its Subsidiaries. Neither FNB, nor any of its Subsidiaries will be required to include any item of material income in, or exclude any material item of deduction from, taxable income for any taxable period, or portion thereof, ending after the Closing Date as a result of any (i) change in method of accounting for a taxable period ending on or prior to the Closing Date, (ii) installment sale or open transaction disposition made on or prior to the Effective Time, (iii) prepaid amount received on or prior to the Closing Date or (iv) deferred intercompany gain or any excess loss account of FNB or any of its Subsidiaries for periods or portions of periods described in Treasury Regulations under Section 1502 of the Code, or any corresponding or similar provision of state, local or foreign law, for periods, or portions thereof, ending on or before the Closing Date.

     4.11 Employee Benefits. For purposes of this Agreement, the following terms shall have the following meaning:

     “FNB Benefit Plans” means any employee benefit plan, program, policy, practice or other arrangement providing benefits to any current or former employee, officer or director of FNB or any of its Subsidiaries or any beneficiary or dependent thereof that is sponsored or maintained by FNB or any of its Subsidiaries or to which FNB or any of its Subsidiaries contributes or is obligated to contribute, whether or not written, including without limitation any employee welfare benefit plan within the meaning of Section 3(1) of ERISA, any employee

pension benefit plan within the meaning of Section 3(2) of ERISA, whether or not such plan is subject to ERISA, and any bonus, incentive, deferred compensation, vacation, stock purchase, stock option, equity compensation, severance, employment, change of control or fringe benefit plan, program or policy.

     “FNB Employment Agreement” means a contract, offer letter or agreement of FNB or any of its Subsidiaries with or addressed to any individual who is rendering or has rendered services thereto as an employee pursuant to which FNB or any of its Subsidiaries has any actual or contingent liability or obligation to provide compensation and/or benefits in consideration for past, present or future services.

     “FNB Plan” means any FNB Benefit Plan other than a Multiemployer Plan.

          (a) Section 4.11(a) of the FNB Disclosure Schedule includes a complete list of all FNB Benefit Plans and all FNB Employment Agreements.

          (b) With respect to each FNB Plan, FNB has delivered or made available to PFC a true, correct and complete copy of: (i) each writing constituting a part of such FNB Plan, including without limitation all plan documents, employee communications, benefit schedules, trust agreements, and insurance contracts and other funding vehicles, (ii) the two most recent Annual Reports (Form 5500 Series) and accompanying schedules, if any, (iii) the current summary plan description and any material modifications thereto, if any (in each case, whether or not required to be furnished under ERISA), (iv) the most recent annual financial report, if any, (v) the most recent actuarial report, if any, and (vi) the most recent determination letter from the IRS, if any. FNB has delivered or made available to PFC a true, correct and complete copy of each FNB Employment Agreement.

          (c) All contributions required to be made to any FNB Plan by applicable law or regulation or by any plan document or other contractual undertaking, and all premiums due or payable with respect to insurance policies funding any FNB Plan, for any period through the date of this Agreement have been timely made or paid in full or, to the extent not required to be made or paid on or before the date of this Agreement, have been fully reflected on the financial statements to the extent required by GAAP. Each FNB Benefit Plan that is an employee welfare benefit plan under Section 3(1) of ERISA either (i) is funded through an insurance company contract and is not a “welfare benefit fund” within the meaning of Section 419 of the Code or (ii) is unfunded, as noted in Section 4.11(c) of the FNB Disclosure Schedule.

          (d) With respect to each FNB Plan, FNB and its Subsidiaries have complied, and are now in compliance, in all material respects, with all provisions of ERISA, the Code and all laws and regulations applicable to such FNB Plans. Each FNB Plan has been administered in all material respects in accordance with its terms. There is not now, nor do any circumstances exist that would reasonably be expected to give rise to, any requirement for the posting of security with respect to a FNB Plan or the imposition of any material lien on the assets of FNB or any of its Subsidiaries under ERISA or the Code. Section 4.11(d) of the FNB Disclosure Schedule identifies each FNB Plan that is intended to be a “qualified plan” within the meaning of Section 401(a) of the Code (“FNB Qualified Plans”). The IRS has issued a favorable determination letter with respect to each FNB Qualified Plan and the related trust

which has not been revoked, or FNB is entitled to rely on a favorable opinion issued by the IRS, and, to the knowledge of FNB, there are no existing circumstances and no events have occurred that would reasonably be expected to adversely affect the qualified status of any FNB Qualified Plan or the related trust. No trust funding any FNB Plan is intended to meet the requirements of Code Section 501(c)(9). To the knowledge of FNB, none of FNB and its Subsidiaries nor any other person, including any fiduciary, has engaged in any “prohibited transaction”, as defined in Section 4975 of the Code or Section 406 of ERISA, which would reasonably be expected to subject any of the FNB Plans or their related trusts, FNB, any of its Subsidiaries or any person that FNB or any of its Subsidiaries has an obligation to indemnify, to any material Tax or penalty imposed under Section 4975 of the Code or Section 502 of ERISA.

          (e) With respect to each FNB Plan that is subject to Title IV or Section 302 of ERISA or Section 412 or 4971 of the Code, (i) there does not exist any accumulated funding deficiency within the meaning of Section 412 of the Code or Section 302 of ERISA, whether or not waived, and, (ii) except as would not have, individually or in the aggregate, a Material Adverse Effect: (A) the fair market value of the assets of such FNB Plan equals or exceeds the actuarial present value of all accrued benefits under such FNB Plan, whether or not vested, on a termination basis, (B) no reportable event within the meaning of Section 4043(c) of ERISA for which the 30-day notice requirement has not been waived has occurred, (C) all premiums to the PBGC have been timely paid in full, (D) no liability, other than for premiums to the PBGC, under Title IV of ERISA has been or would reasonably be expected to be incurred by FNB or any of its Subsidiaries and (E) the PBGC has not instituted proceedings to terminate any such FNB Plan and, to FNB’s knowledge, no condition exists that presents a risk that such proceedings will be instituted or which would reasonably be expected to constitute grounds under Section 4042 of ERISA for the termination of, or the appointment of a trustee to administer, any such FNB Plan.

          (f) (i) No FNB Benefit Plan is a Multiemployer Plan or a Multiple Employer Plan, (ii) none of FNB and its Subsidiaries nor any of their respective ERISA Affiliates has, at any time during the last six years, contributed to or been obligated to contribute to any Multiemployer Plan or Multiple Employer Plan and (iii) none of FNB and its Subsidiaries nor any of their respective ERISA Affiliates has incurred, during the last six years, any Withdrawal Liability that has not been satisfied in full. There does not now exist, nor do any circumstances exist that would reasonably be expected to result in, any Controlled Group Liability that would be a liability of FNB or any of its Subsidiaries following the Effective Time, other than such liabilities that arise solely out of, or relate solely to, the FNB Benefit Plans. Without limiting the generality of the foregoing, neither FNB nor any of its Subsidiaries, nor, to FNB’s knowledge, any of their respective ERISA Affiliates, has engaged in any transaction described in Sections 4069, 4204 or 4212 of ERISA.

          (g) Other than a medical retirement plan, FNB and its Subsidiaries have no liability for life, health, medical or other welfare benefits to former employees or beneficiaries or dependents thereof, except for health continuation coverage as required by Section 4980B of the Code, Part 6 of Title I of ERISA or applicable law and at no expense to FNB and its Subsidiaries.

          (h) Neither the execution nor the delivery of this Agreement nor the consummation of the transactions this Agreement contemplates will, either alone or in conjunction with any other event, whether contingent or otherwise, (i) result in any payment or benefit becoming due or payable, or required to be provided, to any director, employee or independent contractor of FNB or any of its Subsidiaries, (ii) increase the amount or value of any benefit or compensation otherwise payable or required to be provided to any such director, employee or independent contractor, (iii) result in the acceleration of the time of payment, vesting or funding of any such benefit or compensation, including deferred compensation, or (iv) result in any amount failing to be deductible by reason of Section 280G of the Code or would be subject to an excise tax under Section 4999 of the Code or additional tax under Section 409A of the Code.

          (i) No labor organization or group of employees of FNB or any of its Subsidiaries has made a pending demand for recognition or certification, and there are no representation or certification proceedings or petitions seeking a representation proceeding presently pending or, to FNB’s knowledge, threatened to be brought or filed, with the National Labor Relations Board or any other labor relations tribunal or authority. Each of FNB and its Subsidiaries is in material compliance with all applicable laws and collective bargaining agreements respecting employment and employment practices, terms and conditions of employment, wages and hours and occupational safety and health.

     4.12 Compliance with Applicable Law. FNB and each of its Subsidiaries are not in default in any material respect under any applicable law, statute, order, rule, regulation, policy or guideline of any Governmental Entity applicable to FNB or any of its Subsidiaries, including the Equal Credit Opportunity Act, the Fair Housing Act, the Community Reinvestment Act, the Home Mortgage Disclosure Act, the Uniting and Strengthening America by Providing Appropriate Tools Required to Intercept and Obstruct Terrorist (USA Patriot) Act of 2001, the Bank Secrecy Act, the Dodd-Frank Wall Street Reform and Consumer Protection Act and applicable limits on loans to one borrower, except where such noncompliance or default is not reasonably likely to, either individually or in the aggregate, have a Material Adverse Effect on FNB. FNB and each of the FNB Subsidiaries has been and is in compliance in all material respects with (i) the applicable provisions of the Sarbanes-Oxley Act and (ii) the applicable listing and corporate governance rules and regulations of the NYSE.

     4.13 Contracts. Except for matters that have not had and would not reasonably be likely to have, individually or in the aggregate, a Material Adverse Effect on FNB, (i) none of FNB nor any of its Subsidiaries is, with or without the lapse of time or the giving of notice, or both, in breach or default in any material respect under any material contract, lease, license or other agreement or instrument, (ii) to the knowledge of FNB, none of the other parties to any such material contract, lease, license or other agreement or instrument is, with or without the lapse of time or the giving of notice, or both, in breach or default in any material respect thereunder and (iii) neither FNB nor any of its Subsidiaries has received any written notice of the intention of any party to terminate or cancel any such material contract, lease, license or other agreement or instrument whether as a termination or cancellation for convenience or for default of FNB or any of its Subsidiaries.

     4.14 Agreements with Regulatory Agencies. Neither FNB nor any of its Subsidiaries is subject to any cease-and-desist or other order or enforcement action issued by, or is a party to any written agreement, consent agreement or memorandum of understanding with, or is a party to any commitment letter or similar undertaking to, or is subject to any order, or has been since January 1, 2009, a recipient of any supervisory letter from, or has been ordered to pay any civil money penalty by, or since January 1, 2009, has adopted any policies, procedures or board resolutions at the request or suggestion of any Regulatory Agency or other Governmental Entity that currently restricts in any material respect the conduct of its business or that in any material manner relates to its capital adequacy, its ability to pay dividends, its credit or risk management policies, its management or its business, other than those of general application that apply to similarly situated financial holding companies or their Subsidiaries, each item in this sentence, whether or not set forth in the FNB Disclosure Schedule (“FNB Regulatory Agreement”), nor has FNB or any of its Subsidiaries been advised since January 1, 2009 by any Regulatory Agency or other Governmental Entity that it is considering issuing, initiating, ordering or requesting any such FNB Regulatory Agreement. Each bank Subsidiary of FNB has at least a “satisfactory” rating under the U.S. Community Reinvestment Act.

     4.15 Undisclosed Liabilities. Neither FNB nor any of its Subsidiaries has, and since December 31, 2010, neither FNB nor any of its Subsidiaries has incurred, any liabilities or obligations, whether accrued, absolute, contingent or otherwise, known or unknown, whether due or to become due, except (i) those liabilities fully accrued or reserved against in the unaudited consolidated balance sheet of FNB and its Subsidiaries as of March 31, 2011 included in the FNB Reports, (ii) for liabilities and obligations incurred in the ordinary course of business consistent with past practice since March 31, 2011, (iii) for liabilities and obligations that are not material to FNB and its Subsidiaries, taken as a whole, and (iv) for any liabilities incurred with respect to the transactions contemplated by this Agreement.

     4.16 Environmental Liability.

          (a) To FNB’s knowledge, (i) FNB and its Subsidiaries are in material compliance with applicable Environmental Laws, (ii) no Contamination exceeding applicable cleanup standards or remediation thresholds exists at real property, including buildings or other structures, currently or formerly owned or operated by FNB or any of its Subsidiaries, that reasonably could result in a material Environmental Liability for FNB or its Subsidiaries, (iii) no Contamination exists at any real property currently owned by a third party that reasonably could result in a material Environmental Liability for FNB or its Subsidiaries, (iv) neither FNB nor any of its Subsidiaries has received any written notice, demand letter, claim or request for information alleging any material violation of, or liability under, any Environmental Law, (v) neither FNB nor any of its Subsidiaries is subject to any order, decree, injunction or other agreement with any Governmental Entity or any third party under any Environmental Law that reasonably could result in a material Environmental Liability of FNB or its Subsidiaries and (vi) FNB has listed in Section 4.16 of the FNB Disclosure Schedule (and made available to PFC copies of) all environmental reports or studies, sampling data, correspondence and filings in its possession or relating to FNB, its Subsidiaries and any currently owned or operated property of FNB which were prepared in the last five years.

          (b) There are no legal, administrative, arbitral or other proceedings, claims, actions, causes of action, private environmental investigations or remediation activities or governmental investigations of any nature seeking to impose, or that are reasonably likely to result in the imposition, on FNB of any liability or obligation arising under common law or under any local, state or federal environmental statute, regulation or ordinance including the Comprehensive Environmental Response, Compensation and Liability Act of 1980, as amended, pending or threatened against FNB, which liability or obligation is reasonably likely to have, either individually or in the aggregate, a Material Adverse Effect on FNB. To the knowledge of FNB, there is no reasonable basis for any such proceeding, claim, action or governmental investigation that would impose any liability or obligation that would be reasonably likely to have, individually or in the aggregate, a Material Adverse Effect on FNB. FNB is not subject to any agreement, order, judgment, decree, letter or memorandum by or with any Governmental Entity or third party imposing any liability or obligation with respect to the foregoing that is reasonably likely to have, either individually or in the aggregate, a Material Adverse Effect on FNB.

     4.17 Reorganization. As of the date of this Agreement, FNB is not aware of any fact or circumstance that could reasonably be expected to prevent the Merger from qualifying as a “reorganization” within the meaning of Section 368(a) of the Code.

     4.18 Loans; Nonperforming and Classified Assets.

          (a) Except as set forth in Section 4.18 of the FNB Disclosure Schedule, each Loan on the books and records of FNB and its Subsidiaries was made and has been serviced in all material respects in accordance with their customary lending standards in the ordinary course of business, is evidenced in all material respects by appropriate and sufficient documentation and, to the knowledge of FNB, constitutes the legal, valid and binding obligation of the obligor named in the Contract evidencing such Loan, subject to bankruptcy, insolvency, reorganization, moratorium, fraudulent transfer and similar laws of general applicability relating to or affecting creditor’s rights or by general equity principles.

          (b) FNB has set forth in Section 4.18 of the FNB Disclosure Schedule as to FNB and each FNB Subsidiary as of the latest practicable date prior to the date of this Agreement: (A) any written or, to FNB’s knowledge, oral Loan under the terms of which the obligor is 90 or more days delinquent in payment of principal or interest, or to FNB’s knowledge, in default of any other material provision thereof, (B) each Loan that has been classified as “substandard,” “doubtful,” “loss” or “special mention” or words of similar import by FNB, a FNB Subsidiary or an applicable regulatory authority, (C) a listing of OREO and (D) each Loan with any director, executive officer or five percent or greater shareholder of FNB or a FNB Subsidiary, or to the knowledge of FNB, any Person controlling, controlled by or under common control with any of the foregoing.

     4.19 Fiduciary Accounts. FNB and each of its Subsidiaries has properly administered all accounts for which it acts as a fiduciary, including but not limited to accounts for which it serves as a trustee, agent, custodian, personal representative, guardian, conservator or investment advisor, in accordance with the terms of the governing documents and applicable laws and regulations. To FNB’s knowledge, neither FNB nor any of its Subsidiaries, nor any of their

respective directors, officers or employees, has committed any breach of trust with respect to any fiduciary account, and the records for each such fiduciary account are true and correct and accurately reflect the assets of such fiduciary account.

     4.20 Allowance for Loan Losses. FNB Bank’s allowance for loan losses is sufficient at the date of this Agreement for its reasonably anticipated loan losses, is in compliance with the standards established by applicable Governmental Entities and GAAP and, to the knowledge of FNB, is adequate.

     4.21 Interested Shareholder Status. Neither FNB nor any of its Subsidiaries is an “interested shareholder” of PFC, as such term is defined in Section 2553 of the PBCL.

ARTICLE 5

COVENANTS RELATING TO CONDUCT OF BUSINESS

     5.1 Conduct of Businesses Prior to the Effective Time.

          (a) During the period from the date of this Agreement to the Effective Time, except as expressly contemplated or permitted by this Agreement, each of FNB and PFC shall, and shall cause each of its respective Subsidiaries to, (i) conduct its business in the ordinary course in all material respects, (ii) use reasonable best efforts to maintain and preserve intact its business organization, employees and advantageous business relationships and retain the services of its key officers and key employees and (iii) take no action that would reasonably be expected to prevent or materially impede or delay the obtaining of, or materially adversely affect the ability of the parties expeditiously to obtain, any necessary approvals of any Regulatory Agency, Governmental Entity or any other person or entity required for the transactions this Agreement contemplates or to perform its covenants and agreements under this Agreement or to consummate the transactions this Agreement contemplates or thereby.

          (b) PFC agrees that between the date of this Agreement and the Effective Time, the materials presented at the meetings of the Loan Committee of PFC Bank’s Board of Directors shall be provided to FNB within three business days after each meeting and PFC shall provide the minutes of each meeting to FNB within five business days after such meeting.

     5.2 PFC Forbearances. During the period from the date of this Agreement to the Effective Time, except as set forth in Section 5.2 of the PFC Disclosure Schedule and except as expressly contemplated or permitted by this Agreement, PFC shall not, and shall not permit any of the PFC Subsidiaries to, without the prior written consent of FNB (which consent shall not be unreasonably withheld):

          (a) (i) declare, set aside or pay any dividends on, make any other distributions in respect of, or enter into any agreement with respect to the voting of, any of its capital stock, other than (A) dividends and distributions by a direct or indirect Subsidiary of PFC to PFC or any direct or indirect wholly owned Subsidiary of PFC, (B) regular quarterly cash dividends on the PFC Series A Preferred Stock in accordance with the terms thereof and (C) regular quarterly cash dividends with customary record and payment dates which do not exceed $0.02 per share on the PFC Common Stock, subject to Section 6.10, (ii) split, combine

or reclassify any of its capital stock or issue or authorize the issuance of any other securities in respect of, in lieu of, or in substitution for, shares of its capital stock, except upon the exercise of the PFC Warrant or PFC Stock Options that are outstanding or are required by an existing contract, plan, arrangement or policy, as of the date of this Agreement in accordance with their present terms, or (iii) purchase, redeem or otherwise acquire any shares of capital stock or other securities of PFC or any of the PFC Subsidiaries, or any rights, warrants or options to acquire any such shares or other securities, other than the PFC Series A Preferred Stock as contemplated by this Agreement;

          (b) grant any stock options, restricted stock awards, performance stock awards, restricted stock units or other equity or equity-based awards with respect to shares of PFC Common Stock under any of the PFC or the PFC Subsidiaries Stock Plans, or otherwise, except as required by an existing contract, plan, arrangement or policy, or grant any individual, corporation or other entity any right to acquire any shares of its capital stock, or issue any additional shares of capital stock or other securities, other than the issuance of PFC Common Stock upon the exercise of PFC Stock Options or the PFC Warrant;

          (c) amend the PFC Articles, PFC Bylaws or other comparable organizational documents;

          (d) (i) acquire or agree to acquire by merging or consolidating with, or by purchasing any assets or any equity securities of, or by any other manner, any business or any Person, or otherwise acquire or agree to acquire any assets except inventory or other similar assets and except upon foreclosures, or the acceptance of a deed in lieu of foreclosure, in each case in the ordinary course of business consistent with past practice, or (ii) open, acquire, close or sell any branches;

          (e) sell, lease, license, mortgage or otherwise encumber or subject to any Lien, or otherwise dispose of any of its properties or assets other than securitizations and other transactions in the ordinary course of business consistent with past practice;

          (f) (i) incur any indebtedness for borrowed money or issue any debt securities or assume, guarantee or endorse, or otherwise become responsible for the obligations of any Person, other than PFC or any PFC Subsidiary, except for (A) borrowings having a maturity of not more than 30 days (90 days for repurchase agreements) under existing credit facilities, (B) renewals, extensions or replacements of such existing credit facilities that (i) are incurred in the ordinary course of business consistent with past practice, (ii) do not increase the aggregate amount available thereunder, (iii) do not provide for any termination fees or pre-payment penalties, (iv) do not contain any new provisions limiting or otherwise affecting the ability of PFC or any of the PFC Subsidiaries or successors from terminating or pre-paying such facilities, and (v) do not contain financial terms less advantageous than existing credit facilities, and (C) ordinary advances and reimbursements to employees and endorsements of banking instruments made in the ordinary course of business consistent with past practice, or (ii) make any capital contributions to, or investments in, any Person other than its wholly owned Subsidiaries, other than in the ordinary course of business consistent with past practice;

          (g) change in any material respect its accounting methods, except as may be necessary and appropriate to conform to changes in tax laws requirements, changes in GAAP or regulatory accounting principles or as required by PFC’s independent auditors or its Regulatory Agencies;

          (h) change in any material respect its underwriting, operating, investment or risk management or other similar policies of PFC or any of PFC Subsidiaries except as required by applicable law or regulatory policies or as required by any Regulatory Agency or any Governmental Entity;

          (i) make, change or revoke any material Tax election, file any material amended Tax Return, enter into any closing agreement with respect to a material amount of Taxes, settle any material Tax claim or assessment or surrender any right to claim a refund of a material amount of Taxes;

          (j) other than in the ordinary course of business consistent with past practice, terminate or waive any material provision of any material agreement, contract or obligation (collectively, “Contracts”) or, except for the Contracts listed in Section 5.2(j) of the PFC Disclosure Schedule, enter into or renew any agreement or contract or other binding obligation of PFC or any of the PFC Subsidiaries that involves the payment by PFC and/or the PFC Subsidiaries of more than $100,000 during the term thereof;

          (k) incur any capital expenditures in excess of $100,000 individually or $200,000 in the aggregate;

          (l) except as required by agreements or instruments in effect on the date of this Agreement, alter in any material respect, or enter into any commitment to alter in any material respect, any material interest in any corporation, association, joint venture, partnership or business entity in which PFC directly or indirectly holds any equity or ownership interest on the date of this Agreement, other than any interest arising from any foreclosure, settlement in lieu of foreclosure or troubled loan or debt restructuring in the ordinary course of business consistent with past practice;

          (m) agree or consent to any material agreement or material modifications of existing agreements with any Regulatory Authority or Governmental Entity in respect of the operations of its business, except as required by law or regulation based upon the advice of PFC’s legal advisors;

          (n) pay, discharge, settle or compromise any claim, action, litigation, arbitration, suit, investigation or proceeding, other than any such payment, discharge, settlement or compromise in the ordinary course of business consistent with past practice that involves solely money damages in an amount not in excess of $100,000 individually or $200,000 in the aggregate;

          (o) issue any broadly distributed communication of a general nature to employees, including general communications relating to benefits and compensation, or customers without the prior approval of FNB, which will not be unreasonably delayed or

withheld, except for communications in the ordinary course of business that do not relate to the Merger or other transactions this Agreement contemplates;

          (p) take any action, or knowingly fail to take any action, which action or failure to act would be reasonably expected to prevent the Merger from qualifying as a reorganization within the meaning of Section 368(a) of the Code;

          (q) take any action that would be reasonably expected to materially impede or delay the ability of the parties to obtain any necessary approvals of any Regulatory Agency or other Governmental Entity required for the transactions this Agreement contemplates;

          (r) take any action that is intended or is reasonably likely to result in any of its representations or warranties set forth in this Agreement being or becoming untrue in any material respect at any time prior to the Effective Time, or in any of the conditions to the Merger set forth in Article VII not being satisfied or in a violation of any provision of this Agreement, except, in every case, as may be required by applicable law;

          (s) make, renew or otherwise modify any Loan, loan commitment, letter of credit or other extension of credit (individually, a “Loan” and collectively, “Loans”) to any Person if the Loan is an existing credit on the books of PFC and classified as “doubtful” or “loss” or such Loan is in an amount in excess of $500,000 and classified as “substandard” or “special mention”, or make, renew or otherwise modify any Loan or Loans if immediately after making an unsecured Loan or Loans, such Person would be indebted to PFC Bank in an aggregate amount in excess of $250,000 on on unsecured basis or an under secured basis (i.e., the fair market value of the collateral securing such Loan and any replacements thereof is less than the principal value of such Loan and any replacements thereof), or make any fully secured Loan or Loans to any Person, except for any Loan secured by a first mortgage on single family owner-occupied real estate, if, immediately after making a secured Loan, such Person would be indebted to PFC Bank in an aggregate amount in excess of $4,000,000 or, without approval of FNB, shall not make, renew or otherwise modify any Loan or Loans secured by an owner-occupied 1-4 single-family residence with a principal balance in excess of $750,000 or in any event if such Loan does not conform with PFC Bank’s Credit Policy Manual if, in the case of any of the foregoing types of Loan or Loans, FNB shall object thereto within three business days after receipt of notice of such proposed Loan, and the failure to provide a written objection within three business days after receipt of notice of such proposed Loan from PFC Bank shall be deemed as the approval of FNB to make such Loan or Loans. FNB reserves the right to observe the loan approval process by the Board of Directors of PFC or its Loan Committee;

          (t) acquire any new loan participation or loan servicing rights;

          (u) originate, participate or purchase any new loan or other credit facility commitment (including, without limitation, lines of credit and letters of credit) that is (i) serviced by a third party or (ii) outside of its primary market area in the Allegheny, Beaver, Butler, Fayette, Washington and Westmoreland Counties of Pennsylvania, Belmont, Delaware, Fairfield, Franklin, Jefferson, Licking, Madison, Pickaway and Union Counties of Ohio and Brooke County of West Virginia;

          (v) enter into or amend or renew any employment, consulting, severance or similar agreements or arrangements with any director, officer or employee of PFC or its Subsidiaries or grant any salary or wage increase or increase any employee benefit, including discretionary or other incentive or bonus payments or discretionary or matching contributions to any deferred compensation plan, make any grants of awards to newly hired employees or accelerate the vesting of any unvested stock options or stock awards, except:

               (A) for those non-exempt employees of PFC and its Subsidiaries who would normally be eligible for a merit or annual increase in July 2011 according to PFC’s customary and normal practices, a budget pool of 1.25% of their total base salary compensation;

               (B) PFC may continue to grant salary increases to those Tellers and Customer Service Representatives who fulfill the requirements and are progressing from the Teller position to the Customer Service 1 and Customer Service 2 positions, according to PFC’s customary and normal practices;

               (C) for other changes that are required by applicable law or are advisable in order to comply with Section 409A of the Code, upon prior written notice to FNB;

               (D) to pay the amounts or to provide payments under plans and/or commitments set forth in the PFC Disclosure Schedule;

               (E) for retention bonuses of up to $250,000 in the aggregate (provided that any individual retention bonus only will be paid when the potential severance opportunity with respect to a key employee is not deemed to be sufficient to retain the services of such employee through the transition period following the Merger as mutually agreed to by PFC and FNB);

               (F) severance payments pursuant to the severance agreements or employment agreements that are set forth in Section 5.2 of the PFC Disclosure Schedule; or

               (G) for the renewal of the employment, consulting, severance or similar agreements that are set forth in Section 5.2(v)(G) of the PFC Disclosure Schedule.

          (w) Hire any person as an employee of PFC or any of the PFC Subsidiaries or promote any employee, except (i) to satisfy contractual obligations existing as of the date of this Agreement and set forth in Section 5.2(w) of the PFC Disclosure Schedule or (ii) to fill any vacancies existing as of the date of this Agreement and described in Section 5.2(w) of the PFC Disclosure Schedule or (iii) to fill any vacancies arising after the date of this Agreement at a comparable level of compensation with persons whose employment is terminable at the will of PFC or a PFC Subsidiary of PFC, as applicable, provided, however, that such total salary and incentive compensation for any one employee may not exceed $50,000;

          (x) agree to take, make any commitment to take, or adopt any resolutions of its Board of Directors in support of, any of the actions prohibited by any provision of this Section 5.2;

          (y) engage in any new loan transaction with an officer or director or related party;

          (z) purchase any equity securities or purchase any debt securities other than debt securities with a quality rating of “AAA” by either Standard & Poor’s Ratings Services or Moody’s Investors Services for corporate bonds;

          (aa) convert the data processing and related information and/or accounting systems of PFC before the earlier of (i) the consummation of the Merger or (ii) the termination of this Agreement in accordance with its terms; or

          (bb) except as otherwise set forth in this Agreement, except for agreements, arrangements or commitments entered into as a result of the transactions this Agreement contemplates, and except as provided for in a business plan, budget or similar plan delivered to FNB prior to the date of this Agreement, PFC shall not sell, assign, transfer, pledge, hypothecate or otherwise dispose of any assets having a book or market value, whichever is greater, in the aggregate in excess of $250,000, other than (i) pledges of, or liens on, assets to secure government deposits, advances made to PFC by the Federal Home Loan Bank or the Federal Reserve Board, the payment of taxes, assessments or similar charges which are not yet due and payable, the payment of deposits, repurchase agreements, bankers acceptances, “treasury tax and loan” accounts consistent with past practices, or the collection and/or processing of checks, drafts of letters of credit consistent with customary banking practices or the exercise of trust powers, (ii) sales of assets received upon foreclosure, settlement in lieu of foreclosure or in satisfaction of debts previously contracted in the ordinary course of its banking business, or (iii) issuances of loans, sales of previously purchased government guaranteed loans, or transactions in the investment securities portfolio by PFC or repurchase agreements made, in each case, in the ordinary course of banking business.

     5.3 FNB Forbearances. During the period from the date of this Agreement to the Effective Time, except as expressly contemplated or permitted by this Agreement, FNB shall not, and shall not permit any of its Subsidiaries to, without the prior written consent of PFC:

          (a) except for the designation of the FNB Series D Preferred Stock, amend, repeal or otherwise modify any provision of the FNB Charter or the FNB Bylaws other than those that would not be adverse to PFC or its shareholders or those that would not impede FNB’s ability to consummate the transactions this Agreement contemplates;

          (b) take any action, or knowingly fail to take any action, which action or failure to act would be reasonably expected to prevent the Merger from qualifying as a reorganization within the meaning of Section 368(a) of the Code;

          (c) take any action that is intended or is reasonably likely to result in any of its representations or warranties set forth in this Agreement being or becoming untrue in any material respect at any time prior to the Effective Time, or in any of the conditions to the Merger set forth in Article VII not being satisfied or in a violation of any provision of this Agreement, except, in every case, as may be required by applicable law;

          (d) make any material investment either by purchase of stock or securities, contributions to capital, property transfers or purchase of any property or assets of any other individual, corporation or other entity, in any case to the extent such action would be reasonably expected to prevent, or materially impede or delay, the consummation of the transactions this Agreement contemplates;

          (e) take any action that would be reasonably expected to materially impede or delay the ability of the parties to obtain any necessary approvals of any Regulatory Agency or other Governmental Entity required for the transactions this Agreement contemplates; or

          (f) agree to take, make any commitment to take, or adopt any resolutions of its board of directors in support of, any of the actions prohibited by this Section 5.3.

     5.4 Voting Agreements. PFC shall deliver on the date of this Agreement an executed Voting Agreement from each member of the PFC Board of Directors, the form of which is attached to this Agreement as Exhibit “B” (the “Voting Agreement”).

ARTICLE 6

ADDITIONAL AGREEMENTS

     6.1 Regulatory Matters.

          (a) FNB agrees to prepare and file, as soon as practicable, the Registration Statement with the SEC in connection with the issuance of FNB Common Stock in the Merger including the Proxy Statement and prospectus and other proxy solicitation materials of PFC constituting a part thereof and all related documents. PFC shall prepare and furnish to FNB such information relating to it and its directors, officers and shareholders as may be reasonably required in connection with the above referenced documents based on its knowledge of and access to the information required for said documents, and PFC and its legal, financial and accounting advisors shall have the right to review in advance and approve, which approval shall not be unreasonably withheld, such Registration Statement prior to its filing. PFC agrees to cooperate with FNB and FNB’s counsel and accountants in requesting and obtaining appropriate opinions, consents and letters from its financial advisor and independent auditor in connection with the Registration Statement and the Proxy Statement. As long as PFC has cooperated as described above, FNB agrees to file, or cause to be filed, the Registration Statement and the Proxy Statement with the SEC as promptly as reasonably practicable. Each of PFC and FNB agrees to use its commercially reasonable efforts to cause the Registration Statement to be declared effective under the Securities Act as promptly as reasonably practicable after the filing thereof. FNB also agrees to use its reasonable best efforts to obtain all necessary state securities law or “Blue Sky” permits and approvals required to carry out the transactions this Agreement contemplates. After the SEC has declared the Registration Statement effective under the Securities Act, PFC shall promptly mail at its expense the Proxy Statement to its shareholders.

          (b) Each of PFC and FNB agree that none of the respective information supplied or to be supplied by it for inclusion or incorporation by reference in the Registration

Statement shall, at the time the Registration Statement and each amendment or supplement thereto, if any, becomes effective under the Securities Act, contain any untrue statement of a material fact or omit to state any material fact required to be stated in this Agreement or necessary to make the statements in this Agreement not misleading. Each of PFC and FNB agree that none of the respective information supplied or to be supplied by it for inclusion or incorporation by reference in the Proxy Statement and any amendment or supplement thereto shall contain any untrue statement of a material fact or omit to state any material fact required to be stated in this Agreement or necessary to make the statements in this Agreement not misleading. Each of PFC and FNB further agree that if such party shall become aware prior to the Effective Time of any information furnished by such party that would cause any of the statements in the Registration Statement or the Proxy Statement to be false or misleading with respect to any material fact, or to omit to state any material fact necessary to make the statements in this Agreement not false or misleading, to promptly inform the other parties thereof and an appropriate amendment or supplement describing such information shall be filed promptly with the SEC and, to the extent required by law, disseminated to the shareholders of PFC and/or FNB.

          (c) FNB agrees to advise PFC, promptly after FNB receives notice thereof, of the time when the Registration Statement has become effective or any supplement or amendment has been filed, of the issuance of any stop order or the suspension of the qualification of FNB Common Stock for offering or sale in any jurisdiction, of the initiation or, to the extent FNB is aware thereof, threat of any proceeding for any such purpose, or of any request by the SEC for an amendment or supplement of the Registration Statement or for additional information.

          (d) The parties shall cooperate with each other and use their respective reasonable best efforts to promptly prepare and file all necessary documentation, to effect all applications, notices, petitions and filings, to obtain as promptly as practicable all permits, consents, approvals and authorizations of all third parties, Regulatory Agencies and Governmental Entities that are necessary or advisable to consummate the transactions this Agreement contemplates, including the Merger, and to comply with the terms and conditions of all such permits, consents, approvals and authorizations of all such Regulatory Agencies and Governmental Entities. FNB agrees that it will file all appropriate applications or notices with each Regulatory Agency or Governmental Entity having jurisdiction over the transactions contemplated by this Agreement within 60 days following the date hereof. PFC and FNB shall have the right to review in advance, and, to the extent practicable, each will consult the other on, in each case subject to applicable laws relating to the exchange of information, all the information relating to PFC or FNB, as the case may be, and any of their respective Subsidiaries, which appear in any filing made with, or written materials submitted to, any third party, Regulatory Agency or any Governmental Entity in connection with the transactions contemplated by this Agreement. In exercising the foregoing right, each of the parties shall act reasonably and as promptly as practicable. The parties shall consult with each other with respect to the obtaining of all permits, consents, approvals and authorizations of all third parties, Regulatory Agencies and Governmental Entities necessary or advisable to consummate the transactions this Agreement contemplates and each party will keep the other apprised of the status of matters relating to completion of the transactions this Agreement contemplates. Notwithstanding the foregoing, nothing in this Agreement shall be deemed to require FNB to

take any action, or commit to take any action, or agree to any condition or restriction, in connection with obtaining the foregoing permits, consents, approvals and authorizations of third parties, Regulatory Agencies or Governmental Entities, that would reasonably be expected to have a Material Adverse Effect on FNB, including the Surviving Company after giving effect to the Merger, after the Effective Time (a “Materially Burdensome Regulatory Condition”). In addition, PFC agrees to cooperate and use its reasonable best efforts to assist FNB in preparing and filing such petitions and filings, and in obtaining such permits, consents, approvals and authorizations of third parties, Regulatory Agencies and Governmental Entities, that may be necessary or advisable to effect any mergers and/or consolidations of Subsidiaries of PFC and FNB following consummation of the Merger.

          (e) Each of FNB and PFC shall, upon request, furnish to the other all information concerning itself, its Subsidiaries, directors, officers and shareholders and such other matters as may be reasonably necessary or advisable in connection with the Proxy Statement, the Registration Statement or any other statement, filing, notice or application made by or on behalf of FNB, PFC or any of their respective Subsidiaries to any Regulatory Agency or Governmental Entity in connection with the Merger and the other transactions contemplated by this Agreement (including, without limitation, any pro forma financial information to be included in the Registration Statement on Form S-4).

          (f) Each of FNB and PFC shall promptly provide each other with any written communications received from any Regulatory Agency or Governmental Entity with respect to the transactions contemplated by this Agreement and will promptly advise the other upon receiving any oral communication with respect to the transactions contemplated by this Agreement from any Regulatory Agency or Governmental Entity whose consent or approval is required for consummation of the transactions this Agreement contemplates that causes such party to believe that there is a reasonable likelihood that any Requisite Regulatory Approval (as defined in Section 7.1(c)) will not be obtained or that the receipt of any such approval may be materially delayed.

          (g) PFC and FNB shall consult with each other before issuing any press release with respect to the Merger or this Agreement and shall not issue any such press release or make any such public statements without the prior consent of the other party, which shall not be unreasonably withheld; provided, however, that a party may, without the prior consent of the other party, but after such consultation, to the extent practicable under the circumstances, issue such press release or make such public statements as may upon the advice of outside counsel be required by law or the rules or regulations of the SEC, the FDIC, the OCC, the NYSE or FINRA. In addition, the Chief Executive Officers of PFC and FNB shall be permitted to respond to appropriate questions about the Merger from the press. PFC and FNB shall cooperate to develop all public announcement materials and make appropriate management available at presentations related to the Merger as reasonably requested by the other party.

     6.2 Access to Information.

          (a) Upon reasonable notice and subject to applicable laws relating to the exchange of information, each of PFC and FNB shall, and shall cause each of its Subsidiaries to, afford to the officers, employees, accountants, counsel and other representatives of the other,

reasonable access, during normal business hours during the period prior to the Effective Time, to all its properties, books, contracts, commitments and records, and, during such period, the parties shall, and shall cause its Subsidiaries to, make available to the other party all other information concerning its business, properties and personnel as the other may reasonably request. PFC shall, and shall cause each of its Subsidiaries to, provide to FNB a copy of each report, schedule and other document filed or received by it during such period pursuant to the requirements of federal or state banking laws other than reports or documents that such party is not permitted to disclose under applicable law. Neither PFC nor FNB nor any of their Subsidiaries shall be required to provide access to or to disclose information where such access or disclosure would jeopardize the attorney-client privilege of such party or its Subsidiaries or contravene any law, rule, regulation, order, judgment, decree, fiduciary duty or binding agreement entered into prior to the date of this Agreement. The parties shall make appropriate substitute disclosure arrangements under circumstances in which the restrictions of the preceding sentence apply to the extent possible in light of those restrictions.

          (b) All information and materials provided pursuant to this Agreement shall be subject to the provisions of the Confidentiality Agreements entered into between PFC and FNB (the “Confidentiality Agreements”).

          (c) No investigation by either of the parties or their respective representatives shall affect the representations and warranties of the other set forth in this Agreement.

     6.3 PFC Shareholder Approval. PFC shall call a meeting of its shareholders for the purpose of obtaining the requisite shareholder approval required in connection with this Agreement and the Merger (the “PFC Shareholders Meeting”), and shall use its reasonable best efforts to call such meeting as soon as reasonably practicable following the Registration Statement being declared effective giving reasonable time for printing and mailing and taking into account the timing of its annual meeting of shareholders. Subject to Section 6.11, the Board of Directors of PFC shall recommend approval and adoption of this Agreement, the Merger and the other transactions this Agreement contemplates, by PFC’s shareholders and shall include such recommendation in the Proxy Statement (the “PFC Recommendation”). Without limiting the generality of the foregoing, PFC’s obligations pursuant to the first sentence of this Section 6.3 shall not be affected by the commencement, public proposal, public disclosure or communication to PFC of any Acquisition Proposal, as defined in Section 6.11(e). Notwithstanding the foregoing, if this Agreement is terminated pursuant to Section 8.1, PFC’s obligations pursuant to the first sentence of this Section 6.3 shall terminate.

     6.4 Commercially Reasonable Efforts; Cooperation. Each of PFC and FNB agrees to exercise good faith and use its commercially reasonable best efforts to satisfy the various covenants and conditions to Closing in this Agreement, and to consummate the transactions this Agreement contemplates as promptly as possible.

     6.5 NYSE Approval. FNB shall cause the shares of FNB Common Stock to be issued in the Merger to be approved for listing on the NYSE, subject to official notice of issuance, prior to the Effective Time.

     6.6 Benefit Plans.

          (a) Following the Effective Time, FNB shall take all reasonable action so that employees of PFC and the PFC Subsidiaries shall be entitled to participate, effective as soon as administratively practicable following the Effective Time, in each employee benefit plan, program or arrangement of FNB of general applicability with the exception of FNB’s defined benefit pension plan and any other plans frozen to new participants (the “FNB Plans”) to the same extent as similarly-situated employees of FNB and its Subsidiaries, it being understood that inclusion of the employees of PFC and the PFC Subsidiaries in the FNB Plans may occur at different times with respect to different plans, provided that coverage shall be continued under corresponding Benefit Plans of PFC and the PFC Subsidiaries until such employees are permitted to participate in the FNB Plans and provided further, however, that nothing contained in this Agreement shall require FNB or any of its Subsidiaries to make any grants to any former employee of PFC under any discretionary equity compensation plan of FNB. FNB shall cause each FNB Plan in which employees of PFC and the PFC Subsidiaries are eligible to participate to recognize, for purposes of determining eligibility to participate in, the vesting of benefits under the FNB Plans and the entitlement to benefits under the FNB Plans (including, but not limited to, severance benefit and vacation plans), the service of such employees with PFC and the PFC Subsidiaries (or predecessor companies) to the same extent as such service was credited for such purpose by PFC or the PFC Subsidiaries, provided, however, that such service shall not be recognized to the extent that such recognition would result in a duplication of benefits. Except for the commitment to continue those Benefit Plans of PFC and the PFC Subsidiaries that correspond to FNB Plans until employees of PFC and the PFC Subsidiaries are included in such FNB Plans, nothing in this Agreement shall limit the ability of FNB to amend or terminate any of PFC’s Benefit Plans in accordance with and to the extent permitted by their terms at any time permitted by such terms.

          (b) At and following the Effective Time, and except as otherwise provided in Section 6.6(d), FNB shall honor, and, to the extent required by any individual agreement, assume, and the Surviving Company shall continue to be obligated to perform, in accordance with their terms, all benefit obligations to, and contractual rights of, current and former employees of PFC and the PFC Subsidiaries and current and former directors of PFC and the PFC Subsidiaries existing as of the Effective Date, as well as all employment, executive severance or “change-in-control” or similar agreements, plans or policies of PFC that are set forth in Section 6.6(b) of the PFC Disclosure Schedule. The severance or termination payments that are payable pursuant to any such severance agreements, plans or policies of PFC are described in Section 6.6(b) of the PFC Disclosure Schedule. Following the consummation of the Merger and for one year thereafter, FNB shall, to the extent not duplicative of other severance benefits, pay employees of PFC or its Subsidiaries whose employment is terminated by FNB for reasons other than cause, severance as set forth in Section 6.6(b) of the FNB Disclosure Schedule. Following the expiration of the foregoing severance policy, any years of service recognized for purposes of this Section 6.6(b) will be taken into account under the terms of any applicable severance policy of FNB or its Subsidiaries.

          (c) At such time as employees of PFC and the PFC Subsidiaries become eligible to participate in a medical, dental or health plan of FNB or its Subsidiaries, to the extent reasonably practicable and available from its insurers, cause each such plan to (i) waive any

preexisting condition limitations to the extent such conditions are covered under the applicable medical, health or dental plans of PFC and its Subsidiaries, (ii) honor under such plans any deductibles, co-payments and out-of-pocket expenses incurred by the employees of PFC and its Subsidiaries and their beneficiaries during the portion of the plan year prior to such participation, and (iii) waive any waiting period limitation or evidence of insurability requirement that would otherwise be applicable to such employee or dependent on or after the Effective Time to the extent such employee or dependent had satisfied any similar limitation or requirement under an analogous Benefit Plan prior to the Effective Time.

          (d) PFC shall permit the PFC Employee Stock Ownership Plan as amended and restated effective as of January 1, 2008 (the “ESOP”) to terminate in accordance with its terms effective as of the occurrence of a “change in control” as defined in Section 7.4(e) of the ESOP (the “ESOP CIC Date”) and the accounts of all participants and beneficiaries in the ESOP as of the ESOP CIC Date to become fully vested as of the ESOP CIC Date. All shares of PFC Common Stock held in the ESOP shall be converted into the Common Stock Merger Consideration. As soon as practicable after the date hereof, PFC shall, after consultation with FNB, file or cause to be filed all necessary documents with the IRS for a determination letter that the termination of the ESOP as of the ESOP CIC Date will not adversely affect the ESOP’s qualified status, with a copy to be provided to FNB and its counsel. Prior to the Effective Time, PFC and, following the Effective Time, FNB shall use their respective reasonable best efforts to obtain such favorable determination letter (including, but not limited to, adopting such amendments to the ESOP as may be requested by the IRS as a condition to its issuance of a favorable determination letter). As soon as practicable following the later of the Effective Time or the receipt of a favorable determination letter from the IRS regarding the qualified status of the ESOP upon its termination, the account balances in the ESOP shall be either distributed to participants and beneficiaries or transferred to an eligible tax-qualified retirement plan or individual retirement account as a participant or beneficiary may direct, except that ESOP participants whose employment is terminated by FNB may elect to receive their ESOP account balance prior to the receipt of the IRS determination letter but following their termination of employment. FNB agrees to permit ESOP participants who become employees of FNB and its Subsidiaries to roll over their account balances in the ESOP to the FNB 401(k) Plan.

          (e) Immediately prior to the Effective Time, PFC shall, at the written request of FNB, freeze or terminate such of the PFC Benefit Plans as is requested by FNB, provided that such request is received from FNB in a timely manner.

          (f) In order to assist with a smooth transition of the operations of PFC and its Subsidiaries and the transactions which this Agreement contemplates, FNB or one of its Subsidiaries agree to offer employment to certain officers and employees of PFC and its Subsidiaries as employees of FNB and its Subsidiaries following the Effective Time upon the terms and subject to the conditions set forth in Section 6.6(f) of the FNB Disclosure Schedule.

     6.7 Indemnification; Directors’ and Officers’ Insurance.

          (a) In the event of any threatened or actual claim, action, suit, proceeding or investigation, whether civil, criminal or administrative, including any such claim, action, suit, proceeding or investigation (each a “Claim”) in which any individual who is now, or has been at

any time prior to the date of this Agreement, or who becomes prior to the Effective Time, a director or officer of PFC or any of PFC Subsidiaries or who is or was serving at the request of PFC or any of PFC Subsidiaries as a director, officer, employee, member or otherwise of another Person (the “Indemnified Parties”), is, or is threatened to be, made a party based in whole or in part on, or arising in whole or in part out of, or pertaining to (i) the fact that he is or was a director or officer of PFC or any of PFC Subsidiaries or was serving at the request of PFC or any of PFC Subsidiaries as a director or officer of another Person or (ii) this Agreement or any of the transactions this Agreement contemplates, whether asserted or arising before or after the Effective Time, the parties shall cooperate and use their best efforts to defend against and respond thereto. From and after the Effective Time, FNB shall, and shall cause the Surviving Company to, indemnify, defend and hold harmless, as and to the fullest extent currently provided under applicable law, the PFC Articles, the PFC Bylaws as in effect on the date hereof and any agreement set forth in Section 6.7 of the PFC Disclosure Schedule, each such Indemnified Party against any losses, claims, damages, liabilities, costs, expenses, including reimbursement for reasonable fees and expenses, including fees and expenses of legal counsel, including local counsel, incurred in advance of the final disposition of any claim, suit, proceeding or investigation upon receipt of any undertaking required by applicable law, judgments, fines and amounts paid in settlement in connection with any such threatened or actual claim, action, suit, proceeding or investigation.

          (b) FNB and the Surviving Company agree that all rights to indemnification of liabilities, including advancement of expenses, and all limitations with respect thereto, existing in favor of any Indemnified Person, as provided in the PFC Articles or the PFC Bylaws, shall survive the Merger and shall continue in full force and effect, without any amendment thereto; provided, however, that in the event any Claim is asserted or made, any determination required to be made with respect to whether an Indemnified Person’s conduct complies with the standards set forth under the PBCL, the PFC Articles or the PFC Bylaws, as the case may be, shall be made by independent legal counsel, whose fees and expenses shall be paid by FNB and the Surviving Company, selected by such Indemnified Person and reasonably acceptable to FNB; and, provided further that nothing in this Section 6.7 shall impair any rights or obligations of any current or former director or officer of PFC or its Subsidiaries, including pursuant to the respective organizational documents of PFC, or their respective Subsidiaries, under the PBCL or otherwise.

          (c) Prior to the Effective Time, FNB shall obtain at the expense of PFC, and FNB shall maintain for a period of six years following the Effective Time, directors’ and officers’ liability insurance and fiduciary liability insurance policies in respect of acts or omissions occurring at or prior to the Effective Time, including the transactions this Agreement contemplates, covering the Indemnified Persons who as of the Effective Time are covered by PFC’s directors’ and officers’ liability insurance or fiduciary liability insurance policies, provided that FNB may substitute therefor policies of at least the same coverage and amounts containing terms and conditions that are not less advantageous than such policies of PFC or single premium tail coverage with policy limits equal to PFC’s existing coverage limits, provided that in no event shall FNB be required to expend for any one year an amount in excess of 150% of the annual premium currently paid by PFC for such insurance (the “Insurance Amount”), and further provided that if FNB is unable to maintain or obtain the insurance called for by this Section 6.7(c) as a result of the preceding provision, FNB shall use its commercially

reasonable best efforts to obtain the most advantageous coverage as is available for the maximum Insurance Amount. The provisions of the immediately preceding sentence shall be deemed to have been satisfied if prepaid policies have been obtained prior to the Effective Time from an insurer or insurers selected by FNB that have an insurer financial strength rating by A.M. Best Co. of at least “A”, which policies provide the Indemnified Persons with coverage, from the Effective Time to the sixth anniversary of the Effective Time, including in respect of the transactions this Agreement contemplates, on terms that are no less advantageous to Indemnified Persons than PFC’s D&O Insurance existing immediately prior to the date of this Agreement. If such prepaid policies have been obtained prior to the Effective Time, then the FNB shall maintain such policies in full force and effect and continue the obligations thereunder.

          (d) The provisions of this Section 6.7 shall survive the Effective Time and are intended to be for the benefit of, and shall be enforceable by, each Indemnified Party and his or her heirs and representatives.

     6.8 Additional Agreements. In case at any time after the Effective Time any further action is necessary or desirable to carry out the purposes of this Agreement, including any merger between a Subsidiary of FNB, on the one hand, and a Subsidiary of PFC, on the other hand, or to vest the Surviving Company with full title to all properties, assets, rights, approvals, immunities and franchises of either party to the Merger, the proper officers and directors of each party and their respective Subsidiaries shall take all such necessary action as may be reasonably requested by, and at the sole expense of, FNB.

     6.9 Advice of Changes. Each of FNB and PFC shall promptly advise the other of any change or event (i) having or reasonably likely to have a Material Adverse Effect on it or (ii) that it believes would or would be reasonably likely to cause or constitute a material breach of any of its representations, warranties or covenants contained in this Agreement; provided, however, that no such notification shall affect the representations, warranties, covenants or agreements of the parties, or remedies with respect thereto, or the conditions to the obligations of the parties under this Agreement; provided, further, that a failure to comply with this Section 6.9 shall not constitute the failure of any condition set forth in Article VII to be satisfied unless the underlying Material Adverse Effect or material breach would independently result in the failure of a condition set forth in Article VII to be satisfied.

     6.10 Dividends. PFC may pay regular quarterly cash dividends on the PFC Common Stock at a rate not in excess of the regular quarterly cash dividend ($0.02 per share) declared prior to the date of this Agreement on the PFC Common Stock, provided that, notwithstanding the foregoing provisions of this Section 6.10, after the date of this Agreement PFC shall coordinate the declarations of any dividends in respect of the PFC Common Stock and the record dates and payment dates relating thereto with FNB’s declaration of regular quarterly dividends on the FNB Common Stock and the record dates and payment dates relating thereto, it being the intention of PFC and FNB that holders of PFC Common Stock shall not receive two dividends, or fail to receive one dividend, in any quarter with respect to their shares of PFC Common Stock and any shares of FNB Common Stock such holders receive in exchange therefor in the Merger.

     6.11 Certain Actions.

          (a) From the date of this Agreement through the Effective Time, except as otherwise permitted by this Section 6.11, PFC will not, and will not authorize or permit any of its directors, officers, agents, employees, investment bankers, attorneys, accountants, advisors, agents, affiliates or representatives (collectively, “PFC Representatives”) to, directly or indirectly, (i) initiate, solicit, encourage or take any action to facilitate, including by way of furnishing information, any Acquisition Proposal, as defined in Section 6.11(e)(i), or any inquiries with respect to or the making of any Acquisition Proposal, (ii) enter into or participate in any discussions or negotiations with, furnish any information relating to PFC or any of the PFC Subsidiaries or afford access to the business, properties, assets, books or records of PFC or any of the PFC Subsidiaries, to otherwise cooperate in any way with, or knowingly assist, participate in, facilitate or encourage any effort by any third party that is seeking to make, or has made, an Acquisition Proposal or (iii) except in accordance with Section 8.1(g), approve, endorse or recommend or enter into any letter of intent or similar document or any contract, agreement or commitment contemplating or otherwise relating to an Acquisition Proposal.

          (b) Notwithstanding anything in this Agreement to the contrary, PFC and its Board of Directors shall be permitted (i) to comply with Rule 14d-9 and Rule 14e-2 promulgated under the Exchange Act with regard to an Acquisition Proposal provided that the Board of Directors of PFC shall not withdraw or modify in a manner adverse to FNB the PFC Recommendation except as set forth in subsection (iii) below, (ii) to engage in any discussions or negotiations with, and provide any information to, any third party in response to a Superior Proposal, as defined in Section 6.11(e)(ii), by any such third party, if and only to the extent that (x) PFC’s Board of Directors concludes in good faith, after consultation with outside counsel, that failure to do so could reasonably be expected to breach its fiduciary duties under applicable law, (y) prior to providing any information or data to any third party in connection with a Superior Proposal by any such third party, PFC’s Board of Directors receives from such third party an executed confidentiality agreement, which confidentiality terms shall be no less favorable to PFC than those contained in the Confidentiality Agreements between PFC and FNB, a copy of which executed confidentiality agreement shall have been provided to FNB for informational purposes and (z) at least 48 hours prior to providing any information or data to any third party or entering into discussions or negotiations with any third party, PFC promptly notifies FNB in writing of the name of such third party and the material terms and conditions of any such Superior Proposal and (iii) to withdraw, modify, qualify in a manner adverse to FNB, condition or refuse to make the PFC Recommendation (the “Change in PFC Recommendation”) if PFC’s Board of Directors concludes in good faith, after consultation with outside counsel and financial advisors, that failure to do so could reasonably be expected to breach its fiduciary duties under applicable law. Notwithstanding any Change of PFC Recommendation, this Agreement shall be submitted to the shareholders of PFC at the PFC Shareholders’ Meeting for the purpose of voting on the approval of this Agreement and nothing contained herein shall be deemed to relieve PFC of such obligation; provided, however, that if the Board of Directors of PFC shall have effected a Change of PFC Recommendation, then the Board of Directors of PFC may submit this Agreement to PFC’s shareholders without recommendation (although the resolutions adopting this Agreement as of the date hereof may not be rescinded), in which event the Board of Directors of PFC may communicate the basis for its lack of a recommendation to

PFC’s shareholders in the Proxy Statement or an appropriate amendment or supplement thereto to the extent required by applicable law. In addition to the foregoing, PFC shall not submit to the vote of its shareholders any Acquisition Proposal other than the Merger prior to any termination of this Agreement.

          (c) PFC will promptly, and in any event within 24 hours, notify FNB in writing of the receipt of any Acquisition Proposal or any information related thereto, which notification shall describe the Acquisition Proposal and identify the third party making the same.

          (d) PFC agrees that it will, and will cause the PFC Representatives to, immediately cease and cause to be terminated any activities, discussions or negotiations existing as of the date of this Agreement with any parties conducted heretofore with respect to any Acquisition Proposal. PFC or its Representatives shall promptly after the date of this Agreement instruct each Person which has heretofore executed a confidentiality agreement relating to an Acquisition Proposal with or for the benefit of PFC to promptly return or destroy (which destruction shall be certified in writing by such Person to PFC) all information, documents and materials relating to an Acquisition Proposal or to PFC or its businesses, operations or affairs heretofore furnished by PFC or any of its Representatives to such Person or any of such Person’s Representatives in accordance with the terms of any confidentiality agreement with such Person and to destroy all summaries, analyses or extracts of or based upon such information in the possession of such Person or any of its Representatives.

          (e) For purposes of this Agreement:

          (i) The term “Acquisition Proposal” means any inquiry, proposal or offer, filing of any regulatory application or notice, whether in draft or final form, or disclosure of an intention to do any of the foregoing by or from any Person relating to any (w) direct or indirect acquisition or purchase of a business that constitutes a substantial, i.e., 20% or more, portion of the net revenues, net income or net assets of PFC and the PFC Subsidiaries, taken as a whole, (x) direct or indirect acquisition or purchase of PFC Common Stock after the date of this Agreement by a Person who by reason of such purchase or acquisition first becomes the owner of 15% or more of PFC Common Stock after the date of this Agreement, (y) tender offer or exchange offer that if consummated would result in any Person beneficially owning 15% or more of any class of equity securities of PFC or (z) merger, consolidation, business combination, recapitalization, liquidation, dissolution or similar transaction involving PFC other than the transactions this Agreement contemplates.

          (ii) The term “Superior Proposal” means any bona fide, unsolicited written Acquisition Proposal made by a Third Party to acquire more than 50% of the combined voting power of the shares of PFC Common Stock then outstanding or all or substantially all of PFC’s consolidated assets for consideration consisting of cash and/or securities that is on terms that the Board of Directors of PFC in good faith concludes, after consultation with its financial advisors and outside counsel, taking into account, among other things, all legal, financial, regulatory and other aspects of the proposal and the person making the proposal, including any break-up fees, expense reimbursement provisions and conditions to consummation, (A) is on terms that the Board of Directors of PFC in its good faith judgment believes to be more favorable to the holders

of PFC Common Stock than the Merger, (B) for which financing, to the extent required, is then fully committed or reasonably determined to be available by the Board of Directors of PFC and (C) is reasonably capable of being completed.

          (iii) For purposes of this Section 6.11, “Third Party” means any person as defined in Section 13(d) of the Exchange Act other than FNB or its affiliates.

          (f) If a Payment Event, as defined in Section 6.11(g), occurs, PFC shall pay to FNB by wire transfer of immediately available funds, within two business days following such Payment Event, a fee of $6.0 million (the “Break-up Fee”), provided, however, that if a Payment Event occurs, PFC shall have no obligation to pay FNB’s expenses under Section 9.3(b).

          (g) The term “Payment Event” means any of the following:

          (i) the termination of this Agreement by FNB pursuant to Section 8.1(f)(i);

          (ii) the termination of this Agreement by PFC pursuant to Section 8.1(g);

          (iii) the termination of this Agreement pursuant to any other provision of Section 8.1 following the commencement of a tender offer or exchange offer for 25% or more of the outstanding shares of PFC Common Stock and PFC shall not have sent to its shareholders, within 10 business days after the commencement of such tender offer or exchange offer, a statement that the Board of Directors of PFC recommends rejection of such tender offer or exchange offer;

          (iv) the occurrence of any of the following events within 12 months of the termination of this Agreement pursuant to Section 8.1(f)(i), provided that an Acquisition Proposal shall have been made by a Third Party after the date of this Agreement and prior to such termination that shall not have been withdrawn in good faith prior to such termination: (A) PFC enters into an agreement to merge with or into, or be acquired, directly or indirectly, by merger or otherwise by, such Third Party, (B) such Third Party, directly or indirectly, acquires substantially all of the total assets of PFC and the PFC Subsidiaries, taken as a whole or (C) such Third Party, directly or indirectly, acquires more than 50% of the outstanding shares of PFC Common Stock.

          (h) PFC acknowledges that the agreements contained in Section 6.11(f) are an integral part of the transactions contemplated in this Agreement and that without these agreements FNB would not enter into this Agreement. Accordingly, in the event PFC fails to pay to FNB the Break-up Fee, promptly when due, PFC shall, in addition thereto, pay to FNB all costs and expenses, including attorneys’ fees and disbursements, incurred in collecting such Break-up Fee together with interest on the amount of the Break-up Fee or any unpaid portion thereof, from the date such payment was due until the date such payment is received by FNB, accrued at the fluctuating prime rate as quoted in The Wall Street Journal as in effect from time to time during the period.

     6.12 Transition. Commencing following the date of this Agreement, FNB and PFC shall, and shall cause their respective Subsidiaries to, use their reasonable best efforts to facilitate

the integration, from and after the Closing, of PFC and the PFC Subsidiaries with the businesses of FNB and its Subsidiaries, without taking action that would, in effect, give FNB control over the management or policies of PFC or any of the PFC Subsidiaries. Without limiting the generality of the foregoing, from the date of this Agreement through the Closing Date and consistent with the performance of their day-to-day operations, the continuous operation of PFC and the PFC Subsidiaries in the ordinary course of business and applicable law, PFC shall cause the employees and officers of PFC and the PFC Subsidiaries, including PFC Bank, to cooperate with FNB in performing tasks reasonably required in connection with such integration.

     6.13 Tax Representation Letters. Officers of FNB and PFC shall execute and deliver to Reed Smith LLP, tax counsel to FNB, and Elias, Matz, Tiernan & Herrick L.L.P., tax counsel to PFC, “Tax Representation Letters” substantially in the form agreed to by the parties and such law firms at such time or times as may be reasonably requested by such law firms, including at the time the Proxy Statement and Registration Statement are declared effective by the SEC and at the Effective Time, in connection with such tax counsel’s delivery of opinions pursuant to Section 7.2(c) and Section 7.3(c) of this Agreement.

     6.14 Certain Post-Closing Matters.

          (a) FNB shall take action necessary to appoint or elect, effective as of the Effective Time, the PFC Designee as a director of FNB. Such person shall fill a vacancy on the FNB Board of Directors and shall serve until his successor is elected and qualified.

          (b) FNB agrees to take all action necessary to appoint or elect, effective as of the Effective Time, as a director of FNB Bank one (1) current member of the Board of Directors of PFC or PFC Bank (the “PFC Bank Designee”) as mutually agreed by FNB and PFC. The PFC Bank Designee shall serve until the election of his or her successor.

          (c) The commitments set forth in this Section 6.14 shall survive the Effective Time as reflected in a formal resolution of the FNB Board and the FNB Bank Board to be reflected in the minutes of FNB as the Surviving Company of the Merger and FNB Bank as the Surviving Bank in the Bank Merger.

     6.15 Preferred Stock Held by U.S. Treasury. PFC and FNB each shall use its reasonable best efforts to cause or facilitate (a) the purchase by FNB or one of its Subsidiaries of, or (b) the repurchase or redemption by PFC of, all of the issued and outstanding shares of PFC Series A Preferred Stock and, at the election of FNB, the PFC Warrant from the Treasury Department prior to or concurrently with the Effective Time of the Merger. FNB will fund the purchase by FNB (or one of its Subsidiaries), or the redemption by PFC, of all of the PFC Series A Preferred Stock from the Treasury Department. The method of funding of such purchase or redemption shall be mutually agreed to by FNB and PFC, subject to any formal or informal Treasury Department requirements. In furtherance of the foregoing, PFC shall provide, and shall cause its Subsidiaries and the PFC Representatives to provide, all reasonable cooperation and take all reasonable actions as may be requested by FNB in connection with such purchase or redemption, including by (i) furnishing all information concerning PFC and its Subsidiaries that FNB or any applicable Governmental Entity may request in connection with such purchase or redemption or with respect to the effects of such purchase on FNB or its pro forma capitalization;

(ii) assisting with the preparation of any analyses or presentations FNB deems necessary or advisable in its reasonable judgment in connection with such purchase, repurchase or redemption or the effects thereof; and (iii) entering into any agreement with such holder (including any letter agreement among PFC, FNB and such holder) to effect the purchase, repurchase or redemption of such shares as FNB may reasonably request. In addition, if the PFC Series A Preferred Stock will be redeemed by PFC, FNB agrees to purchase from PFC, and PFC agrees to issue to FNB, such equity or debt instruments as the parties mutually agree in good faith.

     6.16 Assumption of Certain PNC Indebtedness. PFC and FNB shall use their reasonable best efforts to take, or cause to be taken, all actions, and to do, or cause to be done, all things necessary, proper or advisable to obtain the written consent of PNC Bank, National Association (“Lender”) to the assumption by FNB or an FNB Subsidiary, on terms and conditions that are reasonably satisfactory to FNB, of that certain Loan Agreement, dated as of December 30, 2008, between PFC and Lender, under which a $25 million term loan has been extended to PFC.

     6.17 Phase I Environmental Audit. PFC shall permit FNB, if FNB elects to do so at its own cost and expense, to cause a “phase I environmental audit” to be performed at any physical location owned or occupied by PFC or any PFC Subsidiary. FNB must commence a “phase I environmental audit” within thirty (30) days of the date of this Agreement or FNB’s right to perform such an audit shall be waived. The results of any such audit shall be provided to PFC within five business days of receipt by FNB.

ARTICLE 7

CONDITIONS PRECEDENT

     7.1 Conditions to Each Party’s Obligation to Effect the Merger. The respective obligations of the parties to effect the Merger shall be subject to the satisfaction or waiver, where permitted by applicable law, at or prior to the Effective Time of the following conditions:

          (a) Shareholder Approval. This Agreement and the Merger this Agreement contemplates shall have been approved and adopted by the requisite affirmative vote of the holders of PFC Common Stock entitled to vote thereon.

          (b) NYSE Listing. The shares of FNB Common Stock to be issued to the holders of PFC Common Stock upon consummation of the Merger shall have been authorized for listing on the NYSE, subject to official notice of issuance, provided FNB shall have used its reasonable best efforts to cause such authorization of listing on the NYSE.

          (c) Regulatory Approvals. All regulatory approvals required to be received from any Governmental Entity, as set forth in Sections 3.4 and 4.4, in order to consummate the transactions this Agreement contemplates, including the Merger, shall have been obtained and shall remain in full force and effect and all statutory waiting periods in respect thereof shall have expired, all such approvals and the expiration of all such waiting periods being referred as the “Requisite Regulatory Approvals”.

          (d) Registration Statement. The Registration Statement shall have become effective under the Securities Act and no stop order suspending the effectiveness of the Registration Statement shall have been issued and no proceedings for that purpose shall have been initiated or threatened by the SEC.

          (e) No Injunctions or Restraints; Illegality. No order, injunction or decree issued by any court or agency of competent jurisdiction or other legal restraint or prohibition (an “Injunction”) preventing the consummation of the Merger or any of the other transactions this Agreement contemplates shall be in effect, provided FNB shall have used its reasonable best efforts to have removed, lifted or resolved such legal restraint or prohibition. No statute, rule, regulation, order, Injunction or decree shall have been enacted, entered, promulgated or enforced by any Governmental Entity that prohibits or makes illegal consummation of the Merger.

     7.2 Conditions to Obligation of FNB to Effect the Merger. The obligation of FNB to effect the Merger is also subject to the satisfaction or waiver by FNB, where permitted by applicable law, at or prior to the Effective Time, of the following conditions:

          (a) Representations and Warranties. The representations and warranties of PFC contained in this Agreement that are qualified by materiality, including Section 3.16, or contained in Section 3.2 shall be true and correct as of the date of this Agreement and as of the Closing Date as though made on and as of the Closing Date and the representations and warranties of PFC contained in this Agreement that are not so qualified shall be true and correct in all material respects as of the date of this Agreement and as of the Closing Date as though made on and as of the Closing Date, except in each case to the extent any such representation or warranty expressly speaks as of an earlier specified date, in which case, as of such date, except in each case where the failure of the representations and warranties, other than the representations and warranties set forth in Section 3.1, to be so true and correct, without giving effect to any qualification as to “material,” “materiality,” “material adverse effect” or similar qualifications, are not, individually or in the aggregate, reasonably likely to result in a Material Adverse Effect on PFC, and FNB shall have received a certificate signed on behalf of PFC by the Chief Executive Officer or the Chief Financial Officer of PFC to the foregoing effect.

          (b) Performance of Obligations of PFC. PFC shall have performed in all material respects all obligations required to be performed by it under this Agreement at or prior to the Closing Date and FNB shall have received a certificate signed on behalf of PFC by the Chief Executive Officer or the Chief Financial Officer of PFC to such effect.

          (c) Federal Tax Opinion. FNB shall have received the opinion of its counsel, Reed Smith LLP, in form and substance reasonably satisfactory to FNB, dated the Closing Date, to the effect that, on the basis of facts, representations and assumptions set forth in such opinion, the Merger will be treated as a reorganization within the meaning of Section 368(a) of the Code. In rendering such opinion, counsel may require and rely upon representations contained in certificates of officers of PFC and FNB, reasonably satisfactory in form and substance to it.

          (d) No Materially Burdensome Regulatory Condition. None of the Requisite Regulatory Approvals shall have resulted in the imposition of a Materially Burdensome Regulatory Condition.

     7.3 Conditions to Obligation of PFC to Effect the Merger. The obligation of PFC to effect the Merger is also subject to the satisfaction or waiver by PFC, where permitted by applicable law, at or prior to the Effective Time of the following conditions:

          (a) Representations and Warranties. The representations and warranties of FNB contained in this Agreement that are qualified by materiality shall be true and correct as of the date of this Agreement and as of the Closing Date as though made on and as of the Closing Date and the representations and warranties of FNB contained in this Agreement that are not so qualified shall be true and correct in all material respects as of the date of this Agreement and as of the Closing Date as though made on and as of the Closing Date, except in each case to the extent any such representation or warranty expressly speaks as of an earlier specified date, in which case, as of such date, except in each case where the failure of the representations and warranties to be so true and correct, without giving effect to any qualification as to “material,” “materiality,” “material adverse effect” or similar qualifications, are not, individually or in the aggregate, reasonably likely to result in a Material Adverse Effect on FNB, and PFC shall have received a certificate signed on behalf of FNB by the Chief Executive Officer or the Chief Financial Officer of FNB to the foregoing effect.

          (b) Performance of Obligations of FNB. FNB shall have performed in all material respects all obligations required to be performed by it under this Agreement at or prior to the Closing Date, and PFC shall have received a certificate signed on behalf of FNB by the Chief Executive Officer or the Chief Financial Officer of FNB to such effect.

          (c) Federal Tax Opinion. PFC shall have received the opinion of its special tax counsel, Elias, Matz, Tiernan & Herrick L.L.P., in form and substance reasonably satisfactory to PFC, dated the Closing Date, to the effect that, on the basis of facts, representations and assumptions set forth in such opinion, the Merger will be treated as a reorganization within the meaning of Section 368(a) of the Code. In rendering such opinion, counsel may require and rely upon representations contained in certificates of officers of PFC and FNB, reasonably satisfactory in form and substance to it.

ARTICLE 8

TERMINATION AND AMENDMENT

     8.1 Termination. This Agreement may be terminated at any time prior to the Effective Date, and the Merger may be abandoned:

          (a) Mutual Consent. By the mutual consent in writing of FNB and PFC if the Board of Directors of each so determines by vote of a majority of the members of its entire Board.

          (b) Breach.

          (i) By FNB, if (A) any of the representations and warranties of PFC contained in this Agreement shall fail to be true and correct such that the condition set forth in Section 7.2(a) would not be satisfied or (B) PFC shall have breached or failed to comply with any of its obligations under this Agreement such that the conditions set forth in Sections 7.1 or 7.2(b) would not be satisfied, in either case other than as a result of a material breach by FNB of any of its obligations under this Agreement and such failure or breach with respect to any such representation, warranty or obligation cannot be cured, or, if curable, shall continue unremedied for a period of 30 days after PFC has received written notice from FNB of the occurrence of such failure or breach, but in no event shall such 30-day period extend beyond April 30, 2012.

          (ii) By PFC, if (A) any of the representations and warranties of FNB contained in this Agreement shall fail to be true and correct such that the condition set forth in Section 7.3(a) would not be satisfied or (B) FNB shall have breached or failed to comply with any of its obligations under this Agreement such that the conditions set forth in Sections 7.1 or 7.3(b) would not be satisfied, in either case other than as a result of a material breach by PFC of any of its obligations under this Agreement and such failure or breach with respect to any such representation, warranty or obligation cannot be cured, or, if curable, shall continue unremedied for a period of 30 days after FNB has received written notice from PFC of the occurrence of such failure or breach, but in no event shall such 30-day period extend beyond April 30, 2012.

          (c) Delay. By FNB or PFC, if its Board of Directors so determines by vote of a majority of the members of its entire Board, in the event that the Merger is not consummated on or before 5:00 p.m., Eastern Daylight Time on April 30, 2012, except to the extent that the failure of the Merger then to be consummated by such date shall be due to the failure of the party seeking to terminate pursuant to this Section 8.1(c) to perform or observe the covenants and agreements of such party set forth in this Agreement.

          (d) No Regulatory Approval. By FNB or PFC, if its Board of Directors so determines by a vote of a majority of the members of its entire Board, in the event the approval of any Governmental Entity required for consummation of the Merger this Agreement contemplates shall have been denied by final nonappealable action of such Governmental Entity or an application therefor shall have been permanently withdrawn at the request of a Governmental Entity, provided, however, that no party shall have the right to terminate this Agreement pursuant to this Section 8.1(d) if such denial shall be due to the failure of the party seeking to terminate this Agreement to perform or observe the covenants of such party set forth in this Agreement.

          (e) No PFC Shareholder Approval. By FNB, or by PFC provided that PFC shall not be in material breach of any of its obligations under Section 6.3, if any approval of the shareholders of PFC this Agreement contemplates shall not have been obtained by reason of the failure to obtain the required vote at the PFC Shareholders Meeting or at any adjournment or postponement thereof.

          (f) Failure to Recommend. At any time prior to the PFC Shareholders Meeting, by FNB if (i) PFC shall have breached Section 6.3 in any respect materially adverse to

FNB, (ii) the PFC Board of Directors shall have failed to make the PFC Recommendation or shall have effected a Change in PFC Recommendation, (iii) the PFC Board shall have recommended approval of an Acquisition Proposal or (iv) PFC shall have materially breached its obligations under Section 6.3 by failing to call, give notice of, convene and hold the PFC Shareholder Meeting.

          (g) Superior Proposal. At any time prior to the date of mailing of the Proxy Statement, by PFC in order to enter concurrently into an Acquisition Proposal that has been received by PFC and the PFC Board of Directors in compliance with Sections 6.11(a) and (b) and that PFC’s Board of Directors concludes in good faith, in consultation with its financial and legal advisors, that such Acquisition Proposal is a Superior Proposal; provided, however, that this Agreement may be terminated by PFC pursuant to this Section 8.1(g) only after the fifth business day following PFC’s provision of written notice to FNB advising FNB that the PFC Board of Directors is prepared to accept a Superior Proposal, it being agreed that the delivery of such notice shall not entitle FNB to terminate this Agreement pursuant to this Section 8.1(g) and only if (i) during such five-business day period, PFC has caused its financial and legal advisors to negotiate with FNB in good faith to make such adjustments in the terms and conditions of this Agreement such that such Acquisition Proposal would no longer constitute a Superior Proposal and (ii) PFC’s Board of Directors has considered such adjustments in the terms and conditions of this Agreement resulting from such negotiations and has concluded in good faith, based upon consultation with its financial and legal advisers, that such Acquisition Proposal remains a Superior Proposal even after giving effect to the adjustments proposed by FNB and further provided that such termination shall not be effective until PFC has paid the Break-up Fee provided by Section 6.11(f) to FNB.

     8.2 Effect of Termination. In the event of termination of this Agreement by either FNB or PFC as provided in Section 8.1, this Agreement shall forthwith become void and have no effect except (i) Sections 6.2(b), 6.11(f)-(i), 8.2, 8.3, 9.3 and 9.8 shall survive any termination of this Agreement and (ii) notwithstanding anything to the contrary contained in this Agreement (other than the provisions of Section 6.11(i)), no party shall be relieved or released from any liability or damages arising out of its willful breach of any of the provisions of this Agreement.

     8.3 Amendment. Subject to compliance with applicable law, this Agreement may be amended by the parties, by action taken or authorized by their respective Boards of Directors at any time before or after approval of the matters presented in connection with Merger by the shareholders of PFC; provided, however, that after any approval of the transactions this Agreement contemplates by the shareholders of PFC, there may not be, without further approval of the PFC shareholders, any amendment of this Agreement that requires such further approval under applicable law. This Agreement may not be amended except by an instrument in writing signed on behalf of each of the parties.

     8.4 Extension; Waiver. At any time prior to the Effective Time, the parties, by action taken or authorized by their respective Board of Directors, may, to the extent legally allowed, (i) extend the time for the performance of any of the obligations or other acts of the other party, (ii) waive any inaccuracies in the representations and warranties contained in this Agreement and (iii) waive compliance with any of the agreements or conditions contained in this Agreement; provided, however, that after any approval of the transactions this Agreement contemplates by

the shareholders of PFC, there may not be, without further approval of the PFC shareholders, any extension or waiver of this Agreement or any portion of this Agreement that changes the amount or form of the consideration to be delivered to the holders of PFC Common Stock under this Agreement, other than as this Agreement contemplates. Any agreement on the part of a party to any such extension or waiver shall be valid only if set forth in a written instrument signed on behalf of such party, but such extension or waiver or failure to insist on strict compliance with an obligation, covenant, agreement or condition shall not operate as a waiver of, or estoppel with respect to, any subsequent or other failure.

ARTICLE 9

GENERAL PROVISIONS

     9.1 Closing. On the terms and subject to the conditions set forth in this Agreement, the closing of the Merger (the “Closing”) shall take place at a time and on a date and at a place to be specified by the parties, which date shall be no later than five business days after the satisfaction or waiver, subject to applicable law, of the latest to occur of the conditions set forth in Article 7, other than those conditions that by their nature are to be satisfied or waived at the Closing, unless extended by mutual written agreement of the parties (the “Closing Date”).

     9.2 Nonsurvival of Representations, Warranties and Agreements. None of the representations, warranties, covenants and agreements set forth in this Agreement or in any instrument delivered pursuant to this Agreement shall survive the Effective Time, except for Articles 1, 2 and 9 and Sections 6.6, 6.7, 6.8 and 6.14.

     9.3 Expenses.

          (a) Each party to this Agreement will bear all expenses incurred by it in connection with this Agreement and the transactions this Agreement contemplates, including fees and expenses of its own financial consultants, accountants and counsel, except that expenses of printing the Proxy Statement and the registration fee to be paid to the SEC in connection with the Registration Statement shall be shared equally between PFC and FNB, and provided further that nothing contained in this Agreement shall limit either party’s rights to recover any liabilities or damages arising out of the other party’s willful breach of any provision of this Agreement.

          (b) In the event that this Agreement is terminated by:

     (i) FNB pursuant to Section 8.1(b)(i); or

     (ii) PFC pursuant to Section 8.1(b)(ii).

then the non-terminating party shall pay to the terminating party by wire transfer of immediately available funds, within two business days following delivery of a statement of such expenses, all out-of-pocket costs and expenses, up to a maximum of $500,000, including without limitation, professional fees of legal counsel, financial advisors and accountants, and their expenses, actually incurred by the terminating party in connection with the Merger and this Agreement.

     9.4 Notices. All notices and other communications in connection with this Agreement shall be in writing and shall be deemed given if delivered personally, sent via facsimile, with confirmation, mailed by registered or certified mail, return receipt requested, or delivered by an express courier, with confirmation, to the parties at the following addresses or at such other address for a party as shall be specified by like notice:

		(a)		if to PFC, to:
				Parkvale Financial Corporation
				4220 William Penn Highway
				Monroeville, PA 15146
				Attention: Robert J. McCarthy, Jr., President and CEO
				Facsimile: 412 ###-###-####
				with a copy to:
				Elias, Matz, Tiernan & Herrick L.L.P.
				734 15th Street, N.W., 11th Floor
				Washington, DC 20005
				Attention: Gerald F. Heupel, Jr., Esq.
				Facsimile: 202 ###-###-####
		(b)		if to FNB, to:
				F.N.B. Corporation
				One F.N.B. Boulevard
				Hermitage, PA 16148
				Attention: Stephen J. Gurgovits, Chief Executive Officer
				Facsimile: (724)  ###-###-####
				with a copy to:
				Reed Smith LLP
				Reed Smith Centre
				225 Fifth Avenue
				Pittsburgh, PA 15222
				Attention: Gary R. Walker, Esq.
				Facsimile: (412)  ###-###-####

     9.5 Interpretation. When a reference is made in this Agreement to Articles, Sections, Exhibits or Schedules, such reference shall be to an Article or Section of or Exhibit or Schedule to this Agreement unless otherwise indicated. The table of contents and headings contained in this Agreement are for reference purposes only and shall not affect in any way the meaning or interpretation of this Agreement. Whenever the words “include,” “includes” or “including” are used in this Agreement, they shall be deemed to be followed by the words “without limitation.” The PFC Disclosure Schedule and the FNB Disclosure Schedule, as well as all other schedules and all exhibits to this Agreement, shall be deemed part of this Agreement and included in any

reference to this Agreement. This Agreement shall not be interpreted or construed to require any person to take any action, or fail to take any action, if to do so would violate any applicable law. In this Agreement, “knowledge” or “Knowledge” means the knowledge as of the date referenced of executive officers of the applicable party following inquiry of persons within their organization and its Subsidiaries who would be reasonably expected to be knowledgeable about the relevant subject matter.

     9.6 Counterparts. This Agreement may be executed in two or more counterparts, all of which shall be considered one and the same agreement and shall become effective when counterparts have been signed by each of the parties and delivered to the other party, it being understood that each party need not sign the same counterpart.

     9.7 Entire Agreement. This Agreement, including the documents and the instruments referred to in this Agreement, together with the Confidentiality Agreements, constitutes the entire agreement and supersedes all prior agreements and understandings, both written and oral, between the parties with respect to the subject matter of this Agreement, other than the Confidentiality Agreements.

     9.8 Governing Law; Jurisdiction.

          (a) This Agreement, the Merger and all claims arising hereunder or relating to this Agreement shall be governed and construed and enforced in accordance with the laws of the Commonwealth of Pennsylvania, without giving effect to the principles of conflicts of law thereof.

          (b) Each of the parties to this Agreement irrevocably and unconditionally submits, for itself and its property, to the exclusive jurisdiction of any Pennsylvania state court or the United States District Court for the Western District of Pennsylvania, in any action or proceeding arising out of or relating to this Agreement. Each of the parties to this Agreement agrees that, subject to rights with respect to post-trial motions and rights of appeal or other avenues of review, a final judgment in any such action or proceeding shall be conclusive and may be enforced in other jurisdictions by suit on the judgment or in any other manner provided by law. Each of the parties to this Agreement irrevocably and unconditionally waives, to the fullest extent it may legally and effectively do so, any objection that it may now or hereafter have to the laying of venue of any suit, action or proceeding arising out of or relating to this Agreement in any Pennsylvania state court or the United States District Court for the Western District of Pennsylvania. Each of the parties to this Agreement irrevocably and unconditionally waives, to the fullest extent it may legally and effectively do so, the defense of an inconvenient forum to the maintenance of such action or proceeding in any such court.

          (c) EACH PARTY HERETO ACKNOWLEDGES AND AGREES THAT ANY CONTROVERSY WHICH MAY ARISE UNDER THIS AGREEMENT IS LIKELY TO INVOLVE COMPLICATED AND DIFFICULT ISSUES, AND THEREFORE EACH SUCH PARTY HEREBY IRREVOCABLY AND UNCONDITIONALLY WAIVES ANY RIGHT SUCH PARTY MAY HAVE TO A TRIAL BY JURY IN RESPECT OF ANY LITIGATION DIRECTLY OR INDIRECTLY ARISING OUT OF OR RELATING TO THIS AGREEMENT, OR THE TRANSACTIONS CONTEMPLATED BY THIS AGREEMENT. EACH PARTY

CERTIFIES AND ACKNOWLEDGES THAT (I) NO REPRESENTATIVE, AGENT OR ATTORNEY OF ANY OTHER PARTY HAS REPRESENTED, EXPRESSLY OR OTHERWISE, THAT SUCH OTHER PARTY WOULD NOT, IN THE EVENT OF LITIGATION, SEEK TO ENFORCE THE FOREGOING WAIVER, (II) EACH PARTY UNDERSTANDS AND HAS CONSIDERED THE IMPLICATIONS OF THIS WAIVER, (III) EACH PARTY MAKES THIS WAIVER VOLUNTARILY AND (IV) EACH PARTY HAS BEEN INDUCED TO ENTER INTO THIS AGREEMENT BY, AMONG OTHER THINGS, THE MUTUAL WAIVERS AND CERTIFICATIONS IN THIS SECTION 9.8.

     9.9 Severability. Except to the extent that application of this Section 9.9 would have a Material Adverse Effect on PFC or FNB, any term or provision of this Agreement that is invalid or unenforceable in any jurisdiction shall, as to that jurisdiction, be ineffective to the extent of such invalidity or unenforceability without rendering invalid or unenforceable the remaining terms and provisions of this Agreement or affecting the validity or enforceability of any of the terms or provisions of this Agreement in any other jurisdiction. If any provision of this Agreement is so broad as to be unenforceable, the provision shall be interpreted to be only so broad as is enforceable. In all such cases, the parties shall use their reasonable best efforts to substitute a valid, legal and enforceable provision that, insofar as practicable, implements the original purposes and intents of this Agreement.

     9.10 Assignment; Third Party Beneficiaries. Neither this Agreement nor any of the rights, interests or obligations under this Agreement shall be assigned by either of the parties, whether by operation of law or otherwise, without the prior written consent of the other party. Subject to the preceding sentence, this Agreement shall be binding upon, inure to the benefit of and be enforceable by each of the parties and their respective successors and assigns. Except as otherwise specifically provided in Section 6.6, 6.7 and 6.14, this Agreement, including the documents and instruments referred to in this Agreement, is not intended to and does not confer upon any person other than the parties to this Agreement any rights or remedies under this Agreement.

[Signature page follows.]

     IN WITNESS WHEREOF, the duly authorized officers of F.N.B. Corporation and Parkvale Financial Corporation have executed this Agreement as of the date first above written.

EXHIBIT A

AGREEMENT OF MERGER

     Agreement of Merger, dated as of _________ ___, 2011, by and between First National Bank of Pennsylvania (“FNB Bank”) and Parkvale Savings Bank (“PS Bank”). All capitalized terms used herein but not defined herein shall have the respective meanings assigned to them in the Agreement and Plan of Merger (the “Agreement”) dated as of June 15, 2011, between F.N.B. Corporation (“FNB”) and Parkvale Financial Corporation (“PFC”).

WlTNESSETH:

     WHEREAS, PS Bank is a Pennsylvania banking institution and a wholly owned subsidiary of PFC; and

     WHEREAS, FNB Bank is a national association and a wholly owned subsidiary of FNB; and

     WHEREAS, FNB and PFC have entered into the Agreement, pursuant to which PFC will merge with and into FNB (the “FNB Merger”); and

     WHEREAS, PS Bank and FNB Bank desire to merge on the terms and conditions herein provided immediately following the effective time of the FNB Merger.

     NOW, THEREFORE, in consideration of the premises and the mutual covenants and agreements herein contained, the parties hereto, intending to be legally bound hereby, agree as follows:

     1. The Merger. Subject to the terms and conditions of the Agreement and this Agreement of Merger, at the Effective Time (as defined in Section 2), PS Bank shall merge with and into FNB Bank (the “Bank Merger”) under the laws of the United States and of the Commonwealth of Pennsylvania. FNB Bank shall be the surviving bank of the Bank Merger (the “Surviving Bank”).

     2. Effective Time. The Bank Merger shall become effective on the date, and at the time, that Articles of Combination are filed with the Office of the Comptroller of the Currency (the “OCC”) and Articles of Merger are filed with the Pennsylvania Department of State (the “Department”) unless a later date and time is specified as the Effective Time in such Articles of Combination and Articles of Merger (the “Effective Time”).

     3. Charter; Bylaws. The Charter and Bylaws of FNB Bank in effect immediately prior to the Effective Time shall be the Charter and Bylaws of the Surviving Bank, until altered, amended or repealed in accordance with their terms and applicable law.

     4. Name; Offices. The name of the Surviving Bank shall be “First National Bank of Pennsylvania.” The main office of the Surviving Bank shall be the main office of FNB Bank immediately prior to the Effective Time. All branch offices of PS Bank and FNB Bank that were in lawful operation immediately prior to the Effective Time shall be the branch offices of the Surviving Bank upon consummation of the Bank Merger, subject to the opening or closing of any offices that may be authorized by PS Bank, FNB Bank, the OCC or the Department after the date hereof. Schedule I hereto contains a list of each of the deposit taking offices of PS Bank and FNB Bank that

shall be operated by the Surviving Bank, subject to the opening or closing of any offices that may be authorized by PS Bank, FNB Bank, the OCC and the Department after the date hereof.

     5. Directors and Executive Officers. Upon consummation of the Merger, (i) the directors of the FNB Bank immediately prior to the Effective Time shall continue as directors of the Surviving Bank as provided in the Agreement, and (ii) the executive officers of the Surviving Bank shall be the executive officers of FNB Bank immediately prior to the Effective Time.

     6. Effects of the Merger. Upon consummation of the Bank Merger, and in addition to the effects set forth at 12 U.S.C. § 215a and the Pennsylvania Banking Code and other applicable law:

          (a) all rights, franchises and interests of PS Bank in and to every type of property (real, personal and mixed), tangible and intangible, and choses in action shall be transferred to and vested in the Surviving Bank by virtue of the Bank Merger without any deed or other transfer, and the Surviving Bank, without any order or other action on the part of any court or otherwise, shall hold and enjoy all rights of property, franchises and interests, including appointments, designations and nominations, and all other rights and interests as trustee, executor, administrator, registrar of stocks and bonds, guardian of estates, assignee, receiver and committee, and in every other fiduciary capacity, in the same manner and to the same extent as such rights, franchises and interest were held or enjoyed by PS Bank immediately prior to the Effective Time; and

          (b) the Surviving Bank shall be liable for all liabilities of PS Bank, fixed or contingent, including all deposits, accounts, debts, obligations and contracts thereof, matured or unmatured, whether accrued, absolute, contingent or otherwise, and whether or not reflected or reserved against on balance sheets, books of account or records thereof, and all rights of creditors or obligees and all liens on property of PS Bank shall be preserved unimpaired; after the Effective Time, the Surviving Bank will continue to issue savings accounts on the same basis as immediately prior to the Effective Time.

     7. Effect on Shares of Stock.

          (a) Each share of FNB Bank common stock issued and outstanding immediately prior to the Effective Time shall be unchanged and shall remain issued and outstanding.

          (b) At the Effective Time, each share of PS Bank capital stock issued and outstanding prior to the Bank Merger shall, by virtue of the Bank Merger and without any action on the part of the holder thereof, be canceled. Any shares of PS Bank capital stock held in the treasury of PS Bank immediately prior to the Effective Time shall be retired and canceled.

     8. Additional Actions. If, at any time after the Effective Time, the Surviving Bank shall consider that any further assignments or assurances in law or any other acts are necessary or desirable to (a) vest, perfect or confirm, of record or otherwise, in the Surviving Bank its rights, title or interest in, to or under any of the rights, properties or assets of PS Bank acquired or to be acquired by the Surviving Bank as a result of, or in connection with, the Bank Merger, or (b) otherwise carry out the purposes of this Agreement of Merger, PS Bank and its proper officers and directors shall be deemed to have granted to the Surviving Bank an irrevocable power of attorney to (i) execute and deliver all such proper deeds, assignments and assurances in law and to do all acts necessary or proper to vest, perfect or confirm title to and possession of such rights, properties or assets in the Surviving Bank and (ii) otherwise to carry out the purposes of this Agreement of Merger. The proper officers and directors

of the Surviving Bank are fully authorized in the name of PS Bank or otherwise to take any and all such action.

     9. Counterparts. This Agreement of Merger may be executed in one or more counterparts, each of which shall be deemed to be an original but all of which together shall constitute one agreement.

     10. Governing Law. This Agreement of Merger shall be governed in all respects, including, but not limited to, validity, interpretation, effect and performance, by the laws of the United States and the Commonwealth of Pennsylvania.

     11. Amendment. Subject to applicable law, this Agreement of Merger may be amended, modified or supplemented only by written agreement of FNB Bank and PS Bank at any time prior to the Effective Time.

     12. Waiver. Any of the terms or conditions of this Agreement of Merger may be waived at any time by whichever of the parties hereto is, or the shareholders of which are, entitled to the benefit thereof by action taken by the Board of Directors of such waiving party

     13. Assignment. This Agreement of Merger may not be assigned by any party hereto without the prior written consent of the other party.

     14. Termination. This Agreement of Merger shall terminate upon the termination of the Agreement in accordance with its terms.

     15. Procurement of Approvals. This Agreement of Merger shall be subject to the approval of FNB as the sole shareholder of FNB Bank and PFC as the sole shareholder of PS Bank at meetings to be called and held or by consent in lieu thereof in accordance with the applicable provisions of law and their respective organizational documents. FNB Bank and PS Bank shall proceed expeditiously and cooperate fully in the procurement of any other consents and approvals and in the taking of any other action, and the satisfaction of all other requirements prescribed by law or otherwise necessary for consummation of the Merger on the terms provided herein and in the Agreement, including without limitation the preparation and submission of such applications or other filings for approval of the Merger to the OCC and the Department as may be required by applicable laws and regulations.

     16. Conditions Precedent. The obligations of the parties under this Agreement of Merger shall be subject to: (i) the approval of this Agreement of Merger by FNB as the sole shareholder of FNB Bank and PFC as the sole shareholder of PS Bank at meetings of shareholders duly called and held or by consent or consents in lieu thereof, in each case without any exercise of such dissenters’ rights as may be applicable; (ii) receipt of approval of the Merger from all governmental and banking authorities whose approval is required; (iii) receipt of any necessary regulatory approval to operate the main office and the branch offices of PS Bank as offices of the Surviving Bank and (iv) the consummation of the FNB Merger pursuant to the Agreement on or before the Effective Time.

     17. Effectiveness of Agreement. Notwithstanding anything to the contrary contained herein, the execution and delivery of this Agreement of Merger by the parties hereto shall not be deemed to be effective unless and until the requirements of 12 C.F.R. § 5.33 are met.

[Signature Page Follows.]

     IN WITNESS WHEREOF, each of FNB Bank and PS Bank has caused this Agreement of Merger to be executed on its behalf by its duly authorized officers.

Schedule I

Exhibit B

FORM OF VOTING AGREEMENT

__________________, 2011

F.N.B. Corporation
One F.N.B. Boulevard
Hermitage, PA 16148

Ladies and Gentlemen:

     F.N.B. Corporation (“FNB”) and Parkvale Financial Corporation (“PFC”) have entered into an Agreement and Plan of Merger dated as of June ___, 2011 (the “Agreement”) whereby PFC will merge with and into FNB (the “Merger”) and shareholders of PFC will receive the Merger Consideration as set forth in the Agreement, subject to the closing of the Merger. All defined terms used but not defined herein shall have the meanings ascribed thereto in the Agreement.

     A condition to FNB’s obligations under the Agreement is that I execute and deliver this Letter Agreement to FNB.

     Intending to be legally bound hereby, I irrevocably agree and represent as follows:

     (a) I will vote or cause to be voted for approval and adoption of the Agreement and the transactions contemplated thereby all shares of PFC common stock over which I have sole voting power, and will use my best efforts to cause any shares of PFC common stock over which I share voting power to be voted for approval and adoption of the Agreement and the transactions contemplated thereby. Beneficial ownership shall have the meaning assigned to it pursuant to Rule 13d-3 under the Securities Exchange Act of 1934, as amended.

     (b) On or prior to the record date (the “Record Date”) for the meeting of the PFC shareholders to vote on approval and adoption of the Agreement and the transactions contemplated thereby, I (i) will not offer, sell, transfer or otherwise dispose of any shares of PFC common stock over which I have sole dispositive power, and (ii) shall use my best efforts to not permit the offer, sale, transfer or other disposition of any shares of PFC common stock over which I have shared dispositive power, except to the extent that I may be permitted under law to make charitable gifts or as permitted by paragraph (g) hereof.

     (c) I have beneficial ownership over the number of shares of PFC common stock, and hold stock options for the number of shares of PFC common stock, if any, set forth in Appendix A hereto.

     (d) I agree that PFC shall not be bound by any attempted sale of any shares of PFC common stock over which I have sole voting and dispositive power, and PFC’s transfer agent shall be given appropriate stop transfer orders and shall not be required to register any such attempted sale, unless the sale has been effected in compliance with the terms of this Letter Agreement.

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     (e) I agree that, if I exercise any options to purchase PFC common stock prior to the Record Date, any of the shares of PFC common stock so acquired by me, except any shares sold as part of a cashless exercise, shall be subject to clauses (a), (b) and (d) above.

     (f) I represent that I have the capacity to enter into this Letter Agreement and that it is a valid and binding obligation enforceable against me in accordance with its terms, subject to bankruptcy, insolvency and other laws affecting creditors’ rights and general equitable principles.

     (g) Notwithstanding anything herein to the contrary, I may transfer any or all of the shares of PFC common stock over which I have beneficial ownership to my spouse, ancestors or descendants; provided, however, that in any such case, prior to and as a condition to the effectiveness of such transfer, each person to which any of such shares or any interest in any of such shares is or may be transferred shall have executed and delivered to FNB an agreement to be bound by the terms of this Letter Agreement. In addition, I may sell, transfer or assign shares of PFC common stock to the extent and on behalf of trusts or estates of which I am not a beneficiary in order to comply with fiduciary obligations or legal requirements.

     I am signing this Letter Agreement solely in my capacity as a shareholder of PFC and as an optionholder if I am an optionholder, and not in any other capacity, such as a director or officer of PFC or as a fiduciary of any trusts in which I am not a beneficiary. Notwithstanding anything herein to the contrary: (a) I make no agreement or understanding herein in any capacity other than in my capacity as a beneficial owner of PFC common stock and (b) nothing herein shall be construed to limit or affect any action or inaction by me or any of my representatives, as applicable, in serving on PFC’s Board of Directors or as an officer of PFC, in acting in my capacity as a director, officer or fiduciary of PFC or as fiduciary of any trust of which I am not a beneficiary.

     This Letter Agreement shall be effective upon acceptance by FNB.

     This Letter Agreement shall terminate and be of no further force and effect concurrently with, and automatically upon, the earlier to occur of (a) the consummation of the Merger, (b) the written agreement of the parties to terminate this Letter Agreement, and (c) any termination of the Agreement in accordance with its terms, except that any such termination shall be without prejudice to FNB’s rights arising out of my willful breach of any covenant or representation contained herein.

     All notices and other communications in connection with this Letter Agreement shall be in writing and shall be deemed given if delivered personally, sent via facsimile, with confirmation, mailed by registered or certified mail, return receipt requested, or delivered by an express courier, with confirmation, to the parties at their addresses set forth on the signature page hereto.

     This Letter Agreement may not be amended except by an instrument in writing signed on behalf of each of the parties. This Letter Agreement constitutes the entire agreement and

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_______________, 2011

supersedes all prior agreements and understandings, both written and oral, between the parties with respect to the subject matter of this Letter Agreement.

     This Letter Agreement and all claims arising hereunder or relating hereto, shall be governed and construed and enforced in accordance with the laws of the Commonwealth of Pennsylvania, without giving effect to the principles of conflicts of law thereof. I hereby irrevocably and unconditionally submit to the exclusive jurisdiction of any Pennsylvania state court or the United States District Court for the Western District of Pennsylvania, in any action or proceeding arising out of or relating to this letter.

Date:_________________________

Address:
		Facsimile:

Acknowledged and Agreed:

F.N.B. CORPORATION

F.N.B. Corporation
Page 1

______________, 2011

Appendix A

Number of Shares Held (excluding stock options): _________________________

This amount includes:

		shares over which I have sole voting power
		shares over which I have shared voting power
		shares over which I have sole dispositive power
		shares over which I have shared dispositive power

Number of Stock Options Held: ____________________