Exhibit 1.1

Execution Copy

4,000,000 Shares

HOSPITALITY PROPERTIES TRUST

(a Maryland real estate investment trust)

Common Shares of Beneficial Interest
par value $.01 per share

UNDERWRITING AGREEMENT

March 21, 2006

Ladies and Gentlemen:

Hospitality Properties Trust, a Maryland real estate investment trust (the “Company”), and HRPT Properties Trust, a Maryland real estate investment trust (the “Selling Shareholder”), confirm their respective agreements with Merrill Lynch, Pierce, Fenner & Smith Incorporated and RBC Capital Markets Corporation (together, the “Underwriters”), with respect to the sale by the Selling Shareholder and the purchase by the Underwriters, acting severally and not jointly, of the respective numbers of common shares of beneficial interest, par value $.01 per share (the “Common Shares”), of the Company at a purchase price of $43.88 per Common Share set forth in Schedule A.  The Common Shares to be purchased by the Underwriters are hereinafter called the “Shares”.

The Company and the Selling Shareholder understand that the Underwriters propose to make a public offering of the Shares as soon as the Underwriters deem advisable after this Agreement has been executed and delivered.

The Company has filed with the Securities and Exchange Commission (the “Commission”) a registration statement on Form S-3 (No. 333-109658) for the registration of the Shares to be sold from time to time by the Selling Shareholder under the Securities Act of 1933, as amended (the “1933 Act”), and has filed such amendments thereto, if any, as may have been required to the date hereof.  Such registration statement has been declared effective under the 1933 Act. Promptly after execution and delivery of this Agreement, the Company will prepare

and file a prospectus in accordance with the provisions of Rule 430B (“Rule 430B”) of the rules and regulations of the Commission under the 1933 Act (the “1933 Act Regulations”) and paragraph (b) of Rule 424 (“Rule 424(b)”) of the 1933 Act Regulations.  Any information included in such prospectus that was omitted from such registration statement at the time it became effective but that is deemed to be part of and included in such registration statement pursuant to Rule 430B is referred to as “Rule 430B Information.” Each prospectus used in connection with the offering of the Shares that omitted Rule 430B Information is herein called a “preliminary prospectus.”  Such registration statement, at any given time, including the amendments thereto at such time, the exhibits and any schedules thereto at such time, the documents incorporated by reference therein pursuant to Item 12 of Form S-3 under the 1933 Act at such time and the documents otherwise deemed to be a part thereof or included therein by the 1933 Act Regulations, is herein called the “Registration Statement.”  Any registration statement filed pursuant to Rule 462(b) of the 1933 Act Regulations is herein referred to as the “Rule 462(b) Registration Statement,” and after such filing the term “Registration Statement” shall include the Rule 462(b) Registration Statement.  The final prospectus, in the form furnished to the Underwriters for use in connection with the offering of the Shares, including the documents incorporated by reference therein pursuant to Item 12 of Form S-3 under the 1933 Act at the time of the execution of this Agreement and any preliminary prospectus that forms a part thereof, is hereinafter referred to as the “Prospectus.”  For purposes of this Agreement, all references to the Registration Statement, any preliminary prospectus, the Prospectus or any amendment or supplement to any of the foregoing shall be deemed to include the copy filed with the Commission pursuant to its Electronic Data Gathering Analysis and Retrieval system (“EDGAR”).

All references in this Agreement to financial statements and schedules and other information which is “contained,” “included” or “stated” in the Registration Statement, any preliminary prospectus or the Prospectus (or other references of like import) shall be deemed to mean and include all such financial statements and schedules and other information which are incorporated by reference in or otherwise deemed by the 1933 Act Regulations to be a part of or included in the Registration Statement, any preliminary prospectus or the Prospectus, as the case may be; and all references in this Agreement to amendments or supplements to the Registration Statement, any preliminary prospectus or the Prospectus shall be deemed to mean and include the filing of any document under Securities Exchange Act of 1934, as amended (the “1934 Act”), which is incorporated by reference in or otherwise deemed by the 1933 Act Regulations to be a part of or included in the Registration Statement, such preliminary prospectus or the Prospectus, as the case may be.

The 307 hotels described in the Prospectus as being currently owned by the Company as of the date hereof are collectively referred to herein as the “Hotels.”

SECTION 1.           Representations and Warranties.

(a)           Representations and Warranties by the Company.   The Company represents and warrants to each of the Underwriters, as of the date hereof, the Applicable Time referred to in Section 1(a)(i) hereof, and as of the Closing Time referred to in Section 2(b) hereof, and agrees with each Underwriter, as follows:

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(1)   Compliance with Registration Requirements.   The Company meets the requirements for use of Form S-3 under the 1933 Act.  The Registration Statement (including any Rule 462(b) Registration Statement) has become effective under the 1933 Act and no stop order suspending the effectiveness of the Registration Statement (or such Rule 462(b) Registration Statement) has been issued under the 1933 Act and no proceedings for that purpose have been instituted or are pending or, to the knowledge of the Company, are contemplated by the Commission, and any request on the part of the Commission for additional information has been complied with.

At the respective times the Registration Statement, any Rule 462(b) Registration Statement and any post-effective amendments thereto became effective, at each deemed effective date with respect to the Underwriters pursuant to Rule 430B(f)(2) of the 1933 Act Regulations, at the date of this Agreement and at the Closing Time, the Registration Statement, any Rule 462(b) Registration Statement and any amendments and supplements thereto complied and will comply in all material respects with the requirements of the 1933 Act and the 1933 Act Regulations, and did not and will not contain an untrue statement of a material fact or omit to state a material fact required to be stated therein or necessary to make the statements therein not misleading.  Neither the Prospectus nor any amendments or supplements thereto, at the time the Prospectus or any such amendment or supplement was issued and at the Closing Time, included or will include an untrue statement of a material fact or omitted or will omit to state a material fact necessary in order to make the statements therein, in the light of the circumstances under which they were made, not misleading.

Any preliminary prospectus (including the prospectus filed as part of the Registration Statement or any amendment thereto) complied when so filed in all material respects with the 1933 Act and the 1933 Act Regulations and any such preliminary prospectus and the Prospectus delivered to the Underwriters for use in connection with this offering was identical to the electronically transmitted copies thereof filed with the Commission pursuant to EDGAR, except to the extent permitted by Regulation S-T.

As of the Applicable Time, any Issuer Free Writing Prospectus (as defined below) issued at or prior to the Applicable Time, the Statutory Prospectus (as defined below) and the information agreed to in writing by the Company, the Selling Shareholder and the Underwriters as the information to be conveyed orally by the Underwriters to purchasers of the Shares at the Applicable Time, all considered together (collectively, the “General Disclosure Package”) did not include any untrue statement of a material fact or omit to state any material fact necessary in order to make the statements therein, in the light of the circumstances under which they were made, not misleading.

The representations and warranties in the preceding three paragraphs shall not apply to statements in or omissions from the Registration Statement or any post-effective amendment thereto or the Prospectus or any amendments or supplements thereto, or the General Disclosure Package made in reliance upon and in conformity with information furnished to the Company in writing by the Underwriters expressly for use in the Registration Statement or any post-effective amendment thereto, or the Prospectus, or any amendments or supplements thereto, or the General Disclosure Package.

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As used in this subsection and elsewhere in this Agreement:

“Applicable Time” means 9:20 a.m. (Eastern time) on March 22, 2006 or such other time as agreed by the Company and the Underwriters.

“Issuer Free Writing Prospectus” means any “issuer free writing prospectus,” as defined in Rule 433 of the 1933 Act Regulations (“Rule 433”), relating to the Shares (including any identified on Schedule B hereto) that (i) is required to be filed with the Commission by the Company, (ii) is a “road show that is a written communication” within the meaning of Rule 433(d)(8)(i), whether or not required to be filed with the Commission or (iii) is exempt from filing pursuant to Rule 433(d)(5)(i) because it contains a description of the Shares or of the offering that does not reflect the final terms, in each case in the form filed or required to be filed with the Commission or, if not required to be filed, in the form retained in the Company’s records pursuant to Rule 433(g).

“Statutory Prospectus” as of any time means the prospectus relating to the Shares that is included in the Registration Statement immediately prior to that time, including the documents incorporated by reference therein and any preliminary or other prospectus deemed to be a part thereof.

(2)   Incorporated Documents.   The documents incorporated or deemed to be incorporated by reference in the Registration Statement and the Prospectus, at the time they were or hereafter are filed with the Commission, complied and will comply in all material respects with the requirements of the 1933 Act and the 1933 Act Regulations or the 1934 Act and the rules and regulations of the Commission thereunder (the “1934 Act Regulations”), as applicable, and, when read together with the other information in the Prospectus, (a) at the time the Registration Statement became effective, (b) at the earlier of the time the Prospectus was first used and the date and time of the first contract of sale of Shares in this offering and (c) at the Closing Time did not and will not contain an untrue statement of a material fact or omit to state a material fact necessary in order to make the statements therein, in light of the circumstances under which they were made, not misleading.

(3)   Eligible Issuer.  As of the date of the execution and delivery of this Agreement (with such date being used as the determination date for purposes of this clause), the Company was not and is not an Ineligible Issuer (as defined in Rule 405 of the 1933 Act Regulations), without taking account of any determination by the Commission pursuant to Rule 405 of the 1933 Act Regulations that it is not necessary that the Company be considered an Ineligible Issuer.

(4)   No Conflicting Information in Issuer Free Writing Prospectuses.       Each Issuer Free Writing Prospectus attached to Schedule B hereto, as of its issue date and at all subsequent times through the completion of the public offer and sale of the Shares or until any earlier date that the Company notified or notifies the Underwriters as described in Section 3(f), did not, does not and will not include any information that conflicted, conflicts or will conflict with the information contained in the Registration Statement or

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the Prospectus, including any document incorporated by reference therein and any preliminary or other prospectus deemed to be a part thereof that has not been superseded or modified.  The foregoing sentence does not apply to statements in or omissions from any Issuer Free Writing Prospectus based upon and in conformity with written information furnished to the Company by the Underwriters specifically for use therein.

(5)   Independent Accountants.  The accounting firm that has certified the financial statements of the Company and its subsidiaries included or incorporated by reference in the Registration Statement, the General Disclosure Package and the Prospectus is an independent registered public accounting firm as required by the 1933 Act, the 1933 Act Regulations the 1934 Act, the 1934 Act Regulations and the Public Company Accounting Oversight Board (United States).

(6)   Financial Statements.  The financial statements of the Company included or incorporated by reference in the Registration Statement, the General Disclosure Package, and the Prospectus, comply as to form in all material respects with the requirements of the 1933 Act, the 1933 Act Regulations, the 1934 Act and the 1934 Act Regulations.  Such financial statements of the Company, together with the related schedules and notes, as well as those financial statements, schedules and notes of any other entity included therein, present fairly the financial position of the Company and its consolidated subsidiaries, or such other entity, as the case may be, at the dates indicated and the statement of operations, shareholders’ equity and cash flows of the Company and its consolidated subsidiaries, or such other entity, as the case may be, for the respective periods specified.  Such financial statements have been prepared in conformity with generally accepted accounting principles in the United States (“GAAP”) applied on a consistent basis throughout the periods involved.  The supporting schedules, if any, included in the Registration Statement, the General Disclosure Package and the Prospectus present fairly in accordance with GAAP for the respective periods specified the information required to be stated therein.  The selected financial data and the summary financial information included in Registration Statement, the General Disclosure Package, and the Prospectus present fairly the information shown therein for the respective periods specified and have been compiled on a basis consistent with that of the audited financial statements included in the Registration Statement, the General Disclosure Package and the Prospectus.  In addition, any pro forma financial statements of the Company and its subsidiaries and the related notes thereto included in the Registration Statement the General Disclosure Package and the Prospectus present fairly the information shown therein, have been prepared in accordance with the Commission’s rules and guidelines with respect to pro forma financial statements and have been properly compiled on the bases described therein, and the assumptions used in the preparation thereof are reasonable and the adjustments used therein are appropriate to give effect to the transactions and circumstances referred to therein.  All disclosures contained in the Registration Statement, the General Disclosure Package and the Prospectus regarding “non-GAAP financial measures” (as such term is defined by the rules and regulations of the Commission) comply, in all material respects, with Regulation G of the 1934 Act and the 1934 Act Regulations and Item 10 of Regulation S-K under the 1933 Act, to the extent applicable.

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(7)   No Material Adverse Change in Business.  Since the respective dates as of which information is given in the Registration Statement, the General Disclosure Package and the Prospectus, except as otherwise stated therein, (A) there has been no material adverse change in the condition, financial or otherwise, or in the results of operations, business affairs or business prospects of the Company and its subsidiaries considered as one enterprise, whether or not arising in the ordinary course of business (a “Material Adverse Effect”), (B) there have been no transactions entered into by the Company or any of its subsidiaries, other than those arising in the ordinary course of business, which are material with respect to the Company and its subsidiaries considered as one enterprise, (C) except for regular dividends on the Company’s common shares or preferred shares, in amounts per share that are consistent with past practice or the applicable charter document or supplement thereto, respectively, there have been no dividends or distributions of any kind declared, paid or made by the Company on any class of its capital shares and (D) there has not been (i) any material decrease in the Company’s consolidated net worth or (ii) any material increase in the short-term or long-term debt (including capitalized lease obligations but excluding borrowings under existing bank lines of credit) of the Company and its subsidiaries, on a consolidated basis.

(8)   Good Standing of the Company.  The Company has been duly organized and is validly existing as a real estate investment trust in good standing under the laws of the State of Maryland and has power and authority to own, lease and operate its properties and to conduct its business as described in the Registration Statement, the General Disclosure Package and the Prospectus, and to enter into and perform its obligations under, or as contemplated under, this Agreement.  The Company is duly qualified to transact business and is in good standing in each other jurisdiction in which such qualification is required, whether by reason of the ownership or leasing of property or the conduct of business, except where the failure to so qualify or be in good standing would not result in a Material Adverse Effect.

(9)   Good Standing of Subsidiaries.  Each “significant subsidiary” of the Company (as such term is defined in Rule 1-02 of Regulation S-X promulgated under the 1933 Act) (each, a “Subsidiary” and, collectively, the “Subsidiaries”), if any, has been duly organized and is validly existing as a corporation, limited liability company or real estate investment trust, as the case may be, in good standing under the laws of the jurisdiction of its incorporation or formation, as the case may be, has corporate, limited liability company or trust, as the case may be, power and authority to own, lease and operate its properties and to conduct its business as described in the Registration Statement, the General Disclosure Package and the Prospectus and is duly qualified as a foreign corporation, limited liability company or real estate investment trust, as the case may be, to transact business and is in good standing in each jurisdiction in which such qualification is required, whether by reason of the ownership or leasing of property or the conduct of business, except where the failure to so qualify or be in good standing would not result in a Material Adverse Effect.  Except as otherwise stated in the Registration Statement, the General Disclosure Package and the Prospectus, all of the issued and outstanding capital shares of each Subsidiary have been duly authorized and are validly issued, fully paid and non-assessable and are or will be owned by the Company, directly or through subsidiaries, free and clear of any security interest, mortgage, pledge, lien,

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encumbrance, claim or equity.  None of the outstanding capital shares of any Subsidiary was issued in violation of preemptive or other similar rights of any securityholder of such Subsidiary.

(10)         Capitalization.  The authorized, issued and outstanding capital shares of the Company have been duly authorized and validly issued by the Company and are fully paid and non-assessable (except as otherwise described in the Registration Statement, the General Disclosure Package and the Prospectus), and none of such capital shares was issued in violation of preemptive or other similar rights of any securityholder of the Company.

(11)         Authorization of this Agreement.  This Agreement has been duly authorized, executed and delivered by the Company.

(12)         Authorization of the Shares.  The Shares are fully paid and non-assessable (except as otherwise described in the Registration Statement, the General Disclosure Package and the Prospectus); all outstanding Common Shares, except for shares issued pursuant to the Company’s Incentive Share Award Plan and shares issued to Reit Management & Research LLC (the “Manager”) and its affiliates, are listed on the New York Stock Exchange, Inc. (the “NYSE”) and the Company knows of no reason or set of facts which is likely to result in the delisting of such Common Shares.

(13)         Descriptions of the Shares.  The Shares conform in all material respects to the statements relating thereto contained in the Registration Statement, the General Disclosure Package, and the Prospectus.

(14)         Absence of Defaults and Conflicts.   Neither the Company nor any of its subsidiaries is in violation of its declaration of trust, charter, bylaws or other comparable governing document or in default in the performance or observance of any obligation, agreement, covenant or condition contained in any contract, indenture, mortgage, deed of trust, loan or credit agreement, note, lease or other agreement or instrument to which the Company or any of its subsidiaries is a party or by which it or any of them may be bound, or to which any of the assets, properties or operations of the Company or any of its subsidiaries is subject (collectively, “Agreements and Instruments”), except for such defaults that would not result in a Material Adverse Effect.  The execution, delivery and performance of this Agreement and any other agreement or instrument entered into or issued or to be entered into or issued by the Company in connection with the transactions contemplated hereby or thereby or in the Registration Statement, the General Disclosure Package and the Prospectus and the consummation of the transactions contemplated herein and in the Registration Statement, the General Disclosure Package and the Prospectus and compliance by the Company with its obligations hereunder and thereunder have been duly authorized by all necessary trust action and do not and will not, whether with or without the giving of notice or passage of time or both, conflict with or constitute a breach of, or default or Repayment Event (as defined below) under, or result in the creation or imposition of any lien, charge or encumbrance upon any assets, properties or operations of the Company or any of its subsidiaries pursuant to, any Agreements and Instruments, nor will such action result in any violation of the provisions

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of the charter or bylaws of the Company or any of its subsidiaries or any applicable law, statute, rule, regulation, judgment, order, writ or decree of any government, government instrumentality or court, domestic or foreign, having jurisdiction over the Company or any of its subsidiaries or any of their assets, properties or operations.  As used herein, a “Repayment Event” means any event or condition which gives the holder of any note, debenture or other evidence of indebtedness (or any person acting on such holder’s behalf) the right to require the repurchase, redemption or repayment of all or a portion of such indebtedness by the Company or any of its subsidiaries.

(15)         Absence of Labor Dispute.  To the knowledge of the Company, no labor problem exists or is imminent with employees of the Company or any of its subsidiaries that could have a Material Adverse Effect.

(16)         Absence of Proceedings.  There is no action, suit, proceeding, inquiry or investigation before or brought by any court or governmental agency or body, domestic or foreign, now pending, or to the knowledge of the Company threatened or contemplated, against or affecting the Company or any of its subsidiaries which is required to be disclosed in the Registration Statement, the General Disclosure Package and the Prospectus (other than as stated therein), or which, if determined adversely to the Company or any of its subsidiaries, might reasonably be expected to result in a Material Adverse Effect, or which might reasonably be expected to materially and adversely affect the consummation of the transactions contemplated under the Prospectus, this Agreement, or the performance by the Company of its obligations hereunder.  The aggregate of all pending legal or governmental proceedings to which the Company or any of its subsidiaries is a party or of which any of their respective assets, properties or operations is the subject which are not described in the Registration Statement, the General Disclosure Package and the Prospectus, including ordinary routine litigation incidental to the business, could not reasonably be expected to result in a Material Adverse Effect.

(17)         Accuracy of Exhibits.  There are no contracts or documents which are required to be described in the Registration Statement, the General Disclosure Package, the Prospectus or the documents incorporated by reference therein or to be filed as exhibits thereto which have not been so described and filed as required.

(18)         Absence of Further Requirements.  No filing with, or authorization, approval, consent, license, order, registration, qualification or decree of, any court or governmental authority or agency, domestic or foreign, is necessary or required for the due authorization, execution and delivery by the Company of this Agreement or for the performance by the Company of the transactions contemplated under the Prospectus or this Agreement, except such as may be required and will be obtained or made at or prior to the Closing Time and such as may be required by the securities or Blue Sky laws or real estate syndication laws of the various states in connection with the offer and sale of the Shares and, in the case of the performance thereof, except as are contemplated by the express terms of such documents to occur after the Closing Time and except (x) such as are otherwise described in the Prospectus and (y) such that the failure to obtain would not have a Material Adverse Effect.

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(19)         Possession of Intellectual Property.  The Company and each of its subsidiaries owns, or possesses adequate rights to use, all patents, trademarks, trade names, service marks, copyrights, licenses and other rights necessary for the conduct of their respective businesses as described in the Registration Statement, the General Disclosure Package and the Prospectus, and neither the Company nor any of its subsidiaries has received any notice of conflict with, or infringement of, the asserted rights of others with respect to any such patents, trademarks, trade names, service marks, copyrights, licenses and other such rights (other than conflicts or infringements that, if proven, would not have a Material Adverse Effect), and neither the Company nor any of its subsidiaries knows of any basis therefor.

(20)         Possession of Licenses and Permits.  The Company has, and as of the Closing Time will have, all permits, licenses, approvals, certificates, franchises and authorizations of governmental or regulatory authorities (“Approvals”) as may be necessary for the conduct of its business as described in the Registration Statement, the General Disclosure Package and the Prospectus, except for those Approvals the absence of which would not have a Material Adverse Effect, and to the best knowledge of the Company, each lessee of the Hotels has, and as of the Closing Time, will have, all Approvals as may be necessary to lease, operate or manage the Hotels in the manner described in or contemplated by the Prospectus, except for those Approvals the absence of which would not have a Material Adverse Effect.

(21)         Title to Property.  The Company and its subsidiaries have good and marketable title to all real property owned by the Company and its subsidiaries and good title to all other properties owned by them, in each case, free and clear of all mortgages, pledges, liens, security interests, claims, restrictions or encumbrances of any kind, except (A) as otherwise stated in the Registration Statement, the General Disclosure Package and the Prospectus, (B) in the case of personal property located at certain Hotels, such as are subject to purchase money, equipment lease or similar financing arrangements which have been entered into in the ordinary course of business or (C) those which do not, singly or in the aggregate, materially affect the value of such property and do not interfere with the use made and proposed to be made of such property by the Company or any of its subsidiaries.  Except as otherwise stated in the Registration Statement, the General Disclosure Package and the Prospectus, all of the leases and subleases material to the business of the Company and its subsidiaries considered as one enterprise, and under which the Company or any of its subsidiaries holds properties described in the Registration Statement, the General Disclosure Package and the Prospectus, are in full force and effect, and neither the Company nor any of its subsidiaries has received any notice of any material claim of any sort that has been asserted by anyone adverse to the rights of the Company or any of its subsidiaries under any of the leases or subleases mentioned above, or affecting or questioning the rights of the Company or such subsidiary to the continued possession of the leased or subleased premises under any such lease or sublease.

(22)         Investment Company Act. The Company is not, nor is any subsidiary of the Company, an “investment company” within the meaning of the Investment Company Act of 1940, as amended (the “1940 Act”).

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(23)         Environmental Laws.  (a) The Company has received and reviewed certain environmental reports on each Hotel’s property (which included Phase I reports) and has obtained certain representations and warranties relating to environmental matters from the sellers of the Hotels set forth in purchase agreements therefor.

(b)           Except as described in the Registration Statement, the General Disclosure Package and the Prospectus, (i) the Company, and, to its knowledge, each Hotel’s property, is, and as of the Closing Time will be, in compliance with all applicable federal, state and local laws and regulations relating to the protection of human health and safety, the environment, hazardous or toxic substances and wastes, pollutants and contaminants (“Environmental Laws”), (ii) the Company, or, to its knowledge, its lessees or managers, as applicable, have received, or as of the Closing Time will receive, all permits, licenses or other approvals required under applicable Environmental Laws to conduct the respective hotel businesses presently conducted at each Hotel’s property and (iii) the Company or, to its knowledge, its lessees or managers, as applicable, are, or as of the Closing Time will be, in compliance with all terms and conditions of any such permit, license or approval, except, in respect of clauses (i), (ii) and (iii), as otherwise disclosed in the Prospectus or as would not, singly or in the aggregate, have a Material Adverse Effect.

(c)           To the best knowledge of the Company, except as described in the Registration Statement, the General Disclosure Package and the Prospectus, there are no costs or liabilities associated with Environmental Laws (including, without limitation, any capital or operating expenditures required for clean-up, remediation or closure of properties or compliance with Environmental Laws and any potential liabilities to third parties) that, as of the date hereof, would, or as of the Closing Time will, singly or in the aggregate, have a Material Adverse Effect.

(d)           The Company has received and reviewed engineering reports on each Hotel’s property, has obtained certain representations and warranties from the sellers of the Hotels set forth in purchase agreements therefor and has conducted physical inspections of each Hotel’s property.  In respect of each Hotel, except as disclosed in the Registration Statement, the General Disclosure Package and the Prospectus, (i) each Hotel is not in violation of any applicable building code, zoning ordinance or other law or regulation, except where such violation of any applicable building code, zoning ordinance or other law or regulation would not, singly or in the aggregate, have a Material Adverse Effect; (ii) the Company has not received notice of any proposed material special assessment or any proposed change in any property tax, zoning or land use laws or availability of water affecting any Hotel that would have, singly or in the aggregate, a Material Adverse Effect; (iii) there does not exist any material violation of any declaration of covenants, conditions and restrictions with respect to any Hotel that would have, singly or in the aggregate, a Material Adverse Effect, or any state of facts or circumstances or condition or event which could, with the giving of notice or passage of time, or both, constitute such a violation; and (iv) the improvements comprising any portion of each Hotel (the “Improvements”) are free of any and all material physical, mechanical, structural, design and construction defects that would have, singly or in the aggregate, a Material Adverse Effect and the mechanical, electrical and utility systems

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servicing the Improvements (including, without limitation, all water, electric, sewer, plumbing, heating, ventilation, gas and air conditioning) are in good condition and proper working order and are free of defects that would have, singly or in the aggregate, a Material Adverse Effect.

(24)         REIT Qualification.  The Company is organized in conformity with the requirements for qualification, and, as of the date hereof the Company operates, and as of Closing Time the Company will operate, in a manner that qualifies the Company as a “real estate investment trust” under the Internal Revenue Code of 1986, as amended (the “Code”), and the rules and regulations thereunder, for 2006 and subsequent years.  The Company qualified as a real estate investment trust under the Code for each of the taxable years ended December 31, 1995 through December 31, 2005.

(25)         Possession of Insurance.  The Company and its Hotels are, and as of the Closing Time will be, insured in the manner described in the Registration Statement, the General Disclosure Package, and the Prospectus by insurers of recognized financial responsibility against such losses and risks and in such amounts as are customary in the businesses in which the Company is engaged and proposes to engage and the Company has no reason to believe that it or its tenants will not be able to renew such insurance coverage as and when such coverage expires or to obtain similar coverage as may be necessary to continue its business at economically viable rates.  The Company and/or its subsidiaries, as applicable, has obtained an ALTA Extended Coverage Owner’s Policy of Title Insurance or its local equivalent (or an irrevocable commitment to issue such a policy) on all of the Hotels owned by the Company or its subsidiaries and such title insurance is in full force and effect.

(26)         Disclosure Controls.  The Company has established and maintains disclosure controls and procedures (as such term is defined in Rule 13a-15 and 15d-15 under the 1934 Act) in accordance with the rules and regulations under the Sarbanes-Oxley Act of 2002 (the “Sarbanes-Oxley Act”), the 1933 Act and the 1934 Act that (a) are designed to ensure that material information relating to the Company, including its consolidated subsidiaries, is made known to the Company’s Chief Executive Officer and its Chief Financial Officer (or persons performing similar functions), particularly during the periods in which the filings made by the Company with the Commission which it may make under Sections 13(a), 13(c), 14 or 15(d) of the 1934 Act are being prepared, (b) have been evaluated for effectiveness as of the end of the period covered by the Company’s most recent Annual Report on Form 10-K for the year ended December 31, 2005 (the “Annual Report”) filed with the Commission and (c) are effective to perform the functions for which they were established.  The Company’s independent accountants and the audit committee of the board of trustees of the Company have been advised of (x) any significant deficiencies in the design or operation of internal control over financial reporting which are reasonably likely to adversely affect the Company’s ability to record, process, summarize, and report financial data and (y) any fraud, whether or not material, that involves management or other employees who have a role in the Company’s internal control over financial reporting. The principal executive officers (or their equivalents) and principal financial officers (or their equivalents) of the Company have made all certifications required by Sections 302 and 906 of the Sarbanes-Oxley Act and any

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related rules and regulations promulgated by the Commission, and the statements contained in any such certification were complete and correct as of the dates made.  Since the date of the most recent evaluation of such disclosure controls and procedures, there have been no significant changes in the Company’s internal control over financial reporting or in other factors that have materially affected or are reasonably likely to materially affect the Company’s internal control over financial reporting.

(27)         Good Standing of the Manager.  Except as otherwise disclosed in the General Disclosure Package and the Prospectus, since the respective dates as of which information is given in the General Disclosure Package and the Prospectus, there has been no material adverse change in the business, operations, earnings, prospects, properties or condition (financial or otherwise) of the Manager, whether or not arising in the ordinary course of business, that would have a Material Adverse Effect. The Manager (A) is a limited liability company duly organized, validly existing and in good standing under the laws of the State of Delaware, and (B) has the requisite limited liability company power and authority to conduct its business as described in the Prospectus and to own and operate its material properties.  The Amended and Restated Advisory Agreement, dated January 1, 2006 (the “Advisory Agreement”), between the Company and the Manager, has been duly authorized, executed and delivered by the parties thereto and constitutes the valid agreement of the parties thereto, enforceable in accordance with its terms, except as limited by (a) the effect of bankruptcy, insolvency, reorganization, moratorium, fraudulent transfer or other similar laws relating to or affecting the rights or remedies of creditors or (b) the effect of general principles of equity (regardless of whether enforcement is sought in a proceeding in equity or at law).

(b)           Officers’ Certificates.   Any certificate signed by any officer of the Company or any of its subsidiaries and delivered to the Underwriters or to counsel for the Underwriters in connection with the offering of the Shares shall be deemed a representation and warranty by the Company to the Underwriters as to the matters covered thereby on the date of such certificate.

(c)           Representations and Warranties by the Selling Shareholder.  The Selling Shareholder represents and warrants to each Underwriter as of the date hereof, the Applicable Time, as of the Closing Time referred to in Section 2(b) and agrees with each Underwriter as follows:

(1)   the Selling Shareholder has been duly organized and is validly existing as a real estate investment trust in good standing under the laws of the State of Maryland and has all necessary power and authority to enter into and perform its obligation under this Agreement;

(2)           the Selling Shareholder now is and at the Closing Time will be, the lawful owner of the number of Shares to be sold by such Selling Shareholder pursuant to this Agreement and has and, at the Closing Time, will have valid and marketable title to such Shares, free and clear of any claim, lien, encumbrance, security interest, community property right, restriction on transfer or other defect in title; and upon delivery of and payment for such Shares, the Underwriters will acquire valid and marketable title to such

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Shares free and clear of any claim, lien, encumbrance, security interest, community property right, restriction on transfer or other defect in title;

(3)           the Selling Shareholder has and, at the Closing Time, will have full legal right, power and capacity, and any approval required by law, to sell, assign, transfer and deliver the Shares in the manner provided in this Agreement;

(4)           this Agreement has been duly authorized, executed and delivered by such Selling Shareholder;

(5)           to such Selling Shareholder’s knowledge, (i) each part of the Registration Statement, did not, as of the deemed effective date with respect to the Underwriters, contain any untrue statement of a material fact or omit to state a material fact required to be stated therein or necessary to make the statements therein not misleading, (ii) at no time during the period that began on the earlier of the date of any preliminary prospectus and the date any preliminary prospectus was filed with the Commission and continuing through the time of execution of this Agreement did any preliminary prospectus, as then amended or supplemented, together with any combination of one or more of the then issued Issuer Free Writing Prospectuses, if any, and the information agreed to in writing by the Company, the Selling Shareholder and the Underwriters as the information to be conveyed orally by the Underwriters to purchasers of the Shares at the Applicable Time, include an untrue statement of a material fact or omit to state a material fact necessary in order to make the statements therein, in the light of the circumstances under which they were made, not misleading, (iii) at no time during the period that begins on the earlier of the date of the Prospectus and the date the Prospectus is filed with the Commission and ends at the Closing Time, in connection with any sale of Shares did or will the Prospectus, as then amended or supplemented, include an untrue statement of a material fact or omit to state a material fact necessary in order to make the statements therein, in the light of the circumstances under which they were made, not misleading, and (iv) at no time during the period that begins on the date of such Issuer Free Writing Prospectus and continues through the time of the filing of the Prospectus with the Commission did or will any Issuer Free Writing Prospectus include an untrue statement of a material fact or omit to state a material fact necessary in order to make the statements therein, in the light of the circumstances under which they were made, not misleading; provided, however, that such Selling Shareholder makes no warranty or representation with respect to any statements or omissions contained in the Registration Statements, any preliminary prospectus, the Prospectus or any Issuer Free Writing Prospectus based upon information relating to any Underwriter furnished to the Company by such Underwriter through you expressly for use therein;

(6)           the information in the Registration Statement, any preliminary prospectus and Prospectus, and any supplements or amendments thereto, relating to such Selling Shareholder is true and accurate, does not omit any information with respect to the Selling Shareholder required to be contained therein or necessary to make the information therein not misleading, and complied, when the Registration Statement became effective and as of the deemed effective date with respect to the Underwriters, complies and will comply in all materials respects with the requirements of the 1933 Act;

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(7)           the execution, delivery and performance of this Agreement by the Selling Shareholder, the sale of the Shares by the Selling Shareholder and the consummation by the Selling Shareholder of the transactions contemplated hereby will not conflict with, result in any breach or violation of or constitute a default under (nor constitute any event which with notice, lapse of time or both would result in any breach of or constitute a default under), (i) the trust agreement or by-laws or other organizational documents of the Selling Shareholder or any of its subsidiaries, (ii) any agreement, indenture or other instrument to which the Selling Shareholder or any of its subsidiaries is a party or by which the Selling Shareholder or any of its subsidiaries or any of the Selling Shareholder’s or any of its subsidiaries’ properties may be bound or affected, or (iii) any federal, state, local or foreign law, regulation or rule or any decree, judgment or order applicable to the Selling Shareholder, other than, in the case of clause (ii), such conflicts, breaches, violations or defaults as would not, individually or in the aggregate, have a material adverse effect on the ability of the Selling Shareholder to consummate the transactions contemplated hereby;

(8)           no approval, authorization, consent or order of or filing with any federal, state or local or foreign governmental or regulatory commission, board, body, authority or agency or with the NYSE, or approval of the shareholders of the Selling Shareholder, is required in connection with the sale of the Shares by the Selling Shareholder or the consummation by the Selling Shareholder of the transactions contemplated hereby other than registration of such Shares under the 1933 Act, which has been effected (or, with respect to any registration statement to be filed hereunder pursuant to Rule 462(b) under the Act, will be effected in accordance herewith), and any necessary qualification under the securities or blue sky laws of the various jurisdictions in which the Shares are being offered by the Underwriters;

(9)           the sale of the Selling Shareholder’s Shares pursuant to this Agreement is not prompted by any information concerning the Company which is not set forth in the Registration Statement (excluding the exhibits thereto), the General Disclosure Package and the Prospectus;

(10)         the Selling Shareholder has not distributed and will not distribute any offering material in connection with the offering or sale of the Shares other than the then most recent preliminary prospectus, the Prospectus and any Issuer Free Writing Prospectus;

(11)         the Selling Shareholder has not taken any action designed, or which has constituted or might reasonably be expected to cause or result in, under the 1934 Act or otherwise, the stabilization or manipulation of the price of any security of the Company to facilitate the sale or resale of the Shares; and

(12)         at the time of purchase, all stock transfer or other taxes (other than income taxes) which are required to be paid in connection with the sale and transfer of the Shares to be sold by the Selling Shareholder to the Underwriters hereunder will have been fully paid or provided for by the Selling Shareholder and all laws imposing such taxes will have been fully complied with.

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(d)           Selling Shareholder’s Officers’ Certificates.  Any certificate signed by an officer of the Selling Shareholder and delivered to the Underwriters or to counsel for the Underwriters in connection with the offering of the Shares shall be deemed to be a representation and warranty by the Selling Shareholder to the Underwriters, as to the matters covered thereby, on the date of such certificate.

SECTION 2.           Sale and Delivery to Underwriters; Closing.

(a)           Shares.  The commitments of the several Underwriters to purchase the Shares pursuant to the terms hereof shall be deemed to have been made on the basis of the representations, warranties and agreements herein contained and shall be subject to the terms and conditions herein set forth.

(b)           Payment.  Payment of the purchase price for, and delivery of, the Shares shall be made at the offices of Sullivan & Worcester LLP, Boston, Massachusetts, or at such other place as shall be agreed upon by the Underwriters, the Company, and the Selling Shareholder at 9:00 A.M. (Eastern time) on the third (fourth, if the pricing occurs after 4:30 P.M. (Eastern time) on any given day) business day following the date of this Agreement, or such other time not later than ten business days after such date as shall be agreed upon by the Underwriters, the Company and the Selling Shareholder (such time and date of payment and delivery being herein called “Closing Time”).  Payment shall be made to the Selling Shareholder by wire transfer of immediately available funds to a bank account designated by the Selling Shareholder, against delivery to the Underwriters of certificates for the Shares to be purchased by them.

(c)           Registration.   The Shares shall be registered in such names as the Underwriters shall request not later than two business days prior to the Closing Time.  The Shares shall be made available for inspection not later than 10:00 a.m. (Eastern Time) on the business day prior to the Closing Time, at the office of The Depository Trust Company or its designated custodian.

SECTION 3.           Covenants.

(a)           Covenants of the Company.  The Company covenants with each Underwriter as follows:

(i)            Immediately following the execution of this Agreement, the Company will prepare a Prospectus setting forth the number of Shares covered thereby and their terms not otherwise specified in the preliminary prospectus, the names of the Underwriters, the price at which the Shares are to be purchased by the Underwriters from the Selling Shareholder, and such other information as the Underwriters, the Company and the Selling Shareholder deem appropriate in connection with the offering of the Shares; and the Company will effect the filings required under Rule 424(b), in the manner and within the time period required by Rule 424(b) (without reliance on Rule 424(b)(8)), and will furnish to the Underwriters as many copies (including by electronic means, if so requested in lieu of paper copies) of the Prospectus as they shall reasonably request, including, if requested by the Underwriters, in addition to or in lieu thereof, electronic copies of the Prospectus.

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(ii)           The Company will comply with the requirements of Rule 430B and will notify the Underwriters immediately, and confirm the notice in writing, (a) of the effectiveness of any amendment to the Registration Statement, (b) of the transmittal to the Commission for filing of any supplement or amendment to the Prospectus or any document to be filed pursuant to the 1934 Act, (c) of the receipt of any comments from the Commission with respect to the Registration Statement or Prospectus or documents incorporated or deemed to be incorporated by reference therein, (d) of any request by the Commission for any amendment to the Registration Statement or any amendment or supplement to the Prospectus with respect to the Shares or for additional information relating thereto, and (e) of the issuance by the Commission of any stop order suspending the effectiveness of the Registration Statement or the initiation of any proceedings for that purpose.  The Company will make every reasonable effort to prevent the issuance of any such stop order and, if any stop order is issued, to obtain the lifting thereof at the earliest possible moment.

(iii)          During the period beginning on the Applicable Time and ending on the later of the Closing Time or such date, as in the reasonable opinion of counsel for the Underwriters, the Prospectus is no longer required under the 1933 Act or the 1934 Act to be delivered in connection with sales by the Underwriters or a dealer, including in circumstances where such requirement may be satisfied pursuant to Rule 172 (the “Prospectus Delivery Period”), prior to amending or supplementing the Registration Statement (including any filing under Rule 462(b)), any preliminary prospectus or the Prospectus (including any amendment or supplement through incorporation by reference of any report filed under the 1934 Act), the Company will furnish to the Underwriters for review a copy of each such proposed amendment or supplement a reasonable amount of time prior to such proposed filing or use, as the case may be, and will not file any such amendment or supplement or use any such prospectus to which counsel for the Underwriters shall reasonably object.  The Company has given the Underwriters notice of any filings made pursuant to the 1934 Act or 1934 Act Regulations within 48 hours prior to the Applicable Time; the Company will give the Underwriters notice of its intention to make any such filing from the Applicable Time to the Closing Time and will furnish the Underwriters with copies of any such documents a reasonable amount of time prior to such proposed filing and will not file or use any such document to which the Underwriters or counsel for the Underwriters shall reasonably object.

(iv)          The Company will deliver to the Underwriters a conformed copy of the Registration Statement as originally filed and of each amendment thereto filed prior to the termination of the initial offering of the Shares (including exhibits filed therewith or incorporated by reference therein and the documents incorporated by reference into the Prospectus pursuant to Item 12 of Form S-3).

(v)           The Company will furnish to the Underwriters, from time to time during the period when the Prospectus is required to be delivered under the 1933 Act or the 1934 Act in connection with the offering, such number of copies

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(including by electronic means, if so requested by the Underwriters, in addition to or in lieu of, paper copies) of the Prospectus (as amended or supplemented) as the Underwriters may reasonably request for the purposes contemplated by the 1933 Act, the 1933 Act Regulations, the 1934 Act or 1934 Act Regulations.

(vi)          If at any time after the date hereof any event shall occur as a result of which it is necessary, in the opinion of counsel for the Underwriters, which shall be communicated in writing by the Underwriters to the Company, to amend or supplement the Prospectus in order to make the Prospectus not misleading in the light of the circumstances existing at the time it is delivered, the Company will promptly either (a) forthwith prepare and furnish to the Underwriters an amendment of or supplement to the Prospectus or (b) make an appropriate filing pursuant to Section 13, 14 or 15 of the 1934 Act, in each case, in form and substance reasonably satisfactory to counsel for the Underwriters, which will amend or supplement the Prospectus so that it will not include an untrue statement of a material fact or omit to state a material fact necessary in order to make the statements therein, in the light of the circumstances existing at the time it is delivered, not misleading.    If at any time after the date hereof, an event or development occurs as a result of which the General Disclosure Package contains an untrue statement of a material fact or omits to state a material fact necessary in order to make the statements therein, in the light of the circumstances existing at the time it is used, not misleading, the Company will promptly notify the Underwriters and will promptly amend or supplement in a manner reasonably satisfactory to the Underwriters, at its own expense, the General Disclosure Package to eliminate or correct such untrue statement or omission.  If at any time following issuance of an Issuer Free Writing Prospectus there occurred or occurs an event or development as a result of which such Issuer Free Writing Prospectus conflicted or would conflict with the information contained in the Registration Statement (or any other registration statement relating to the Shares) or the Statutory Prospectus or any preliminary prospectus or included or would include an untrue statement of a material fact or omitted or would omit to state a material fact necessary in order to make the statements therein, in the light of the circumstances prevailing at that subsequent time, not misleading, the Company will promptly notify the Underwriters and will promptly amend or supplement, at its own expense, such Issuer Free Writing Prospectus to eliminate or correct such conflict, untrue statement or omission.  The Underwriters’ delivery of any such amendment or supplement shall not constitute a waiver of any of the conditions in Section 5 hereof.

(vii)         Each of the Company and the Selling Shareholder represent and agree that, unless it obtains the prior written consent of the Underwriters, and each Underwriter agrees that, unless it obtains the prior consent of the Company and the other Underwriter, it has not made and will not make any offer relating to the Shares that would constitute an “issuer free writing prospectus”, as defined in Rule 433, or that would otherwise constitute a “free writing prospectus,” as defined in Rule 405, required to be filed with the Commission; provided, however, that prior to the preparation of the Final Term Sheet in accordance with

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Section 3(c), the Underwriters are authorized to use the information with respect to the final terms of the Shares in communications conveying information relating to the offering to investors.  Any such free writing prospectus consented to by the Company and the Underwriters is hereinafter referred to as a “Permitted Free Writing Prospectus.”  The Company represents that it has treated or agrees that it will treat each Permitted Free Writing Prospectus as an “issuer free writing prospectus,” as defined in Rule 433, and has complied and will comply with the requirements of Rule 433 applicable to any Permitted Free Writing Prospectus, including timely filing with the Commission where required, legending and record keeping.

(viii)        The Company will endeavor in good faith, in cooperation with the Underwriters, to qualify the Shares for offering and sale under the applicable securities laws and real estate syndication laws of such states and other jurisdictions of the United States as the Underwriters may designate; provided that, in connection therewith, the Company shall not be required to qualify as a foreign corporation or trust or to file any general consent to service of process.  In each jurisdiction in which the Shares have been so qualified the Company will file such statements and reports as may be required by the laws of such jurisdiction to continue such qualification in effect for so long as required for the distribution of the Shares.

(ix)           The Company will make generally available to its security holders as soon as reasonably practicable, but not later than 90 days after the close of the period covered thereby, an earning statement of the Company (in form complying with the provisions of Rule 158 of the 1933 Act Regulations) covering a period of at least twelve months beginning not later than the first day of the Company’s fiscal quarter next following the effective date of the Registration Statement.  “Earning statement”, “make generally available” and “effective date” will have the meanings contained in Rule 158 of the 1933 Act Regulations.

(x)            The Company currently intends to continue to qualify as a “real estate investment trust” under the Code, and use its best efforts to continue to meet the requirements to qualify as a “real estate investment trust” under the Code.

(xi)           The Company will timely file any document which it is required to file pursuant to the 1934 Act prior to the termination of the offering of the Shares.

(xii)          The Company, its managing trustees and executive officers, will not, during a period of 30 days from the date of this Agreement, without the Underwriters’ prior written consent, register, offer, sell, contract to sell, grant any option to purchase or otherwise dispose of any Common Shares or any securities convertible into or exercisable or exchangeable for Common Shares, or warrants to purchase Common Shares, other than (a) Common Shares issued or to be issued pursuant to the Company’s incentive share award plans; (b) Common Shares to be issued to the Manager in payment of its incentive fee; and (c)

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Common Shares to be issued as partial or full payment for properties directly or indirectly acquired or to be acquired by the Company or its subsidiaries; provided that, the Company shall have conditioned the issuance of such Common Shares upon the agreement of the recipients to the restrictions of this paragraph (xiii).

(b)           Covenants of the Selling Shareholder.  The Selling Shareholder covenants with each Underwriter to advise the Underwriters promptly of the happening of any event within the time during which a prospectus relating to the Shares is required to be delivered under the 1933 Act that is known to the Selling Shareholder, which, to the knowledge of the Selling Shareholder after consultation with counsel, would require the making of any change in the Prospectus then being used, or in the information incorporated by reference, so that the Prospectus would not include an untrue statement of material fact or omit to state a material fact necessary to make the statements therein, in the light of the circumstances under which they are made, not misleading.

SECTION 4.           Payment of Expenses.

(a)     Expenses.   The Selling Shareholder will pay all expenses incident to the performance of its obligations under this Agreement, including (i) the preparation, printing and filing of the Registration Statement (including financial statements and exhibits) as originally filed and of each amendment thereto, (ii) the delivery of the Shares and any certificates for the Shares to the Underwriters, including any transfer taxes and any stamp or other duties payable upon the sale or delivery of the Shares to the Underwriters, (iii) the fees and disbursements of the Selling Shareholder’s and the Company’s counsel, accountants and other advisors or agents, as well as their respective counsel, (iv) the qualification of the Shares under state securities laws in accordance with the provisions of Section 3(a)(viii) hereof, including filing fees and the reasonable fees and disbursements of counsel in connection therewith and in connection with the preparation, printing and delivery of a Blue Sky Survey, and any amendment thereto, (v) the printing and delivery to the Underwriters of copies of the Prospectus, any preliminary prospectus, any Permitted Free Writing Prospectus and the Prospectus and any amendments or supplements thereto, (vi) any fees and expenses incurred in connection with the listing of the Shares on the NYSE, (vii) the filing fees incident to, and the reasonable fees and disbursements of counsel for the Underwriters in connection with, the review, if any, by the National Association of Securities Dealers, Inc. (the “NASD”) of the terms of the sale of the Shares, (viii) the cost of providing any CUSIP or other identification numbers for the Shares, and (ix) the costs and expenses (including without limitation any damages or other amounts payable in connection with legal or contractual liability) associated with the reforming of any contracts for sale of the Shares made by the Underwriters caused by a breach of the representation contained in the fourth paragraph of Section 1(a)(1).

(b)           Termination of Agreement.   If this Agreement is terminated by the Underwriters in accordance with the provisions of Section 5 or Section 9(a)(i) hereof, the Selling Shareholder shall reimburse the Underwriters for all of their out-of-pocket expenses, including the reasonable fees and disbursements of counsel for the Underwriters.

SECTION 5.           Conditions of Underwriters’ Obligations.   The Underwriters’ obligations to purchase and pay for the Shares pursuant to the terms hereof are subject to the accuracy of the representations and warranties of the Company and the Selling Shareholder contained in Section

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1 hereof or in certificates of any officer of the Company or any of its subsidiaries or on behalf of the Selling Shareholder delivered pursuant to the provisions hereof, to the performance by the Company and the Selling Shareholder of their respective covenants and other obligations hereunder, and to the following further conditions:

(a)           Effectiveness of Registration Statement.   The Registration Statement, including any Rule 462(b) Registration Statement, has become effective under the 1933 Act and no stop order suspending the effectiveness of the Registration Statement shall have been issued under the 1933 Act and no proceedings for that purpose shall have been instituted or be pending or threatened by the Commission, and any request on the part of the Commission for additional information shall have been complied with to the reasonable satisfaction of counsel for the Underwriters.  A prospectus containing the Rule 430B Information shall have been filed with the Commission in the manner and within the time period required by Rule 424(b) without reliance on Rule 424(b)(8) (or a post-effective amendment providing such information shall have been filed and become effective in accordance with the requirements of Rule 430(B)) and any required filing of each Issuer Free Writing Prospectus pursuant to Rule 433 has been made in the manner and within the time period required by Rule 433(d).

(b)           Opinion of Counsel for Company.   At Closing Time, the Underwriters shall have received the favorable opinion, dated as of Closing Time, of Sullivan & Worcester LLP, counsel for the Company, in form and substance satisfactory to counsel for the Underwriters, to the effect set forth in Exhibit A hereto.  In rendering their opinion, such counsel may rely on an opinion dated the Closing Time of Venable LLP, as to matters governed by the laws of the State of Maryland.  In addition, in rendering their opinion, such counsel may state that their opinion as to laws of the State of Delaware is limited to the Delaware General Corporation Law and the Delaware Limited Liability Company Act.  Such counsel may also state that, insofar as such opinion involves factual matters, they have relied, to the extent they deem proper, upon certificates of officers of the Company and its subsidiaries and certificates of public officials.

(c)           Opinion of Special Maryland Counsel for Company.  At Closing Time, the Underwriters shall have received the favorable opinion, dated as of Closing Time, of Venable LLP, special Maryland counsel for the Company, in form and substance satisfactory to counsel for the Underwriters, to the effect set forth in Exhibit B hereto.

(d)           Opinion of Counsel for the Selling Shareholder.  At Closing Time the Underwriters shall have received the favorable opinion, dated as of Closing Time, of Sullivan & Worcester LLP, counsel for the Selling Shareholder, in form and substance reasonably satisfactory to counsel for the Underwriters, to the effect set forth in Exhibit C hereto.  In rendering their opinion as aforesaid, Sullivan & Worcester LLP may limit such opinion to matters of federal, Massachusetts and New York law and, as to matters governed by Maryland law, may rely upon the opinion, dated as of the Closing Time, of Venable LLP delivered pursuant to Section 5(e) of this Agreement, provided that such reliance is expressly authorized by such opinion and a copy of such opinion is delivered to the Underwriters and is, in form and substance, satisfactory to the Underwriters and counsel for the Underwriters.

(e)           Opinion of Counsel for the Selling Shareholder.  At Closing Time the Underwriters shall have received the favorable opinion, dated as of Closing Time, of Venable

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LLP, special Maryland counsel for the Selling Shareholder, in form and substance reasonably satisfactory to counsel for the Underwriters, to the effect set forth in Exhibit D hereto.

(f)            Opinion of Counsel for Underwriters.  At Closing Time, the Underwriters shall have received the favorable opinion, dated as of Closing Time, of Sidley Austin LLP, counsel for the Underwriters, in form and substance reasonably satisfactory to the Underwriters and a statement to the following effect:  no facts have come to such counsel’s attention that have caused such counsel to believe that (i) the Registration Statement, at the time of filing of the Company’s Annual Report or as of the “new effective date” with respect to the Underwriters of the Shares pursuant to, and within the meaning of, Rule 430B(f)(2) of the 1933 Act Regulations, contained an untrue statement of a material fact or omitted to state a material fact required to be stated therein or necessary to make the statements therein not misleading; (ii) the General Disclosure Package, at the Applicable Time, when considered with the information agreed to in writing by the Company, the Selling Shareholder and the Underwriters as the information to be conveyed orally by the Underwriters to purchasers of the Shares at the Applicable Time, included an untrue statement of a material fact or omitted to state a material fact necessary in order to make the statements therein, in the light of the circumstances under which they were made, not misleading; or (iii) the Prospectus, as of its date or at the Closing Time, included or includes an untrue statement of a material fact or omitted or omits to state a material fact necessary in order to make the statements therein, in the light of the circumstances under which they were made, not misleading; except in each case such counsel shall not be required to express any belief or make any statement with respect to the financial statements (including the notes) and supporting schedules, if any, thereto and other financial data contained or incorporated or deemed to be incorporated by reference therein or omitted therefrom.

In giving such opinion, Sidley Austin LLP may rely, as to all matters governed by the laws of jurisdictions other than the law of the State of New York, and the federal law of the United States, upon the opinions of counsel satisfactory to the Underwriters and may rely on an opinion dated the Closing Time of Venable LLP as to matters governed by the laws of the State of Maryland and on an opinion of Sullivan & Worcester LLP as to matters governed by the laws of the Commonwealth of Massachusetts.  Such counsel may also state that, insofar as such opinion involves factual matters, they have relied, to the extent they deem proper, upon certificates of officers of the Company and its subsidiaries and certificates of public officials.

(g)           Officers’ Certificate.   At Closing Time, there shall not have been, since the date hereof or since the respective dates as of which information is given in the General Disclosure Package or the Prospectus, any Material Adverse Effect and the Underwriters shall have received a certificate of the President or a Vice President of the Company and of the Chief Financial Officer or Chief Accounting Officer of the Company, dated as of Closing Time, to the effect that (i) there has been no Material Adverse Effect, (ii) the representations and warranties in Section 1(a) are true and correct with the same force and effect as though expressly made at and as of the Closing Time, (iii) the Company has complied with all agreements and satisfied all conditions on its part to be performed or satisfied at or prior to the Closing Time, and (iv) no stop order suspending the effectiveness of the Registration Statement has been issued and no proceedings for that purpose have been instituted, are pending or, to the best of such officers’ knowledge, are threatened by the Commission.

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(h)           Selling Shareholder’s Certificate.  At Closing Time, the Underwriters shall have received a certificate of the President or a Vice President of the Selling Shareholder and of the Chief Financial Officer or Chief Accounting Officer of the Selling Shareholder, dated as of the Closing Time, to the effect that (i) the representations and warranties in Section 1(c) are true and correct with the same force and effect as though expressly made at and as of the Closing Time; and (ii) the Selling Shareholder has complied with all agreements and satisfied all conditions on its part to be reformed or satisfied at or prior to the Closing Time.

(i)            Manager’s Certificate.   At Closing Time, there shall not have been, since the respective dates as of which information is given in the Registration Statement, and the Prospectus, or since the respective dates as of which information is given in the General Disclosure Package, any material adverse change in the business, operations, earnings, prospects, properties or condition (financial or otherwise) of the Manager, whether or not arising in the ordinary course of business; and the Underwriters shall have received, at Closing Time, a certificate of the President or a Vice President of the Manager evidencing compliance with this subsection (i).

(j)            Accountant’s Comfort Letter.   At the time of the execution of this Agreement, the Underwriters shall have received from Ernst & Young LLP a letter dated such date, in form and substance satisfactory to the Underwriters, containing statements and information of the type ordinarily included in accountants’ “comfort letters” to underwriters with respect to the financial statements and certain financial information contained in the Registration Statement, the General Disclosure Package and the Prospectus.

(k)           Bring-down Comfort Letter.   At Closing Time, the Underwriters shall have received from Ernst & Young LLP a letter, dated as of Closing Time, to the effect that they reaffirm the statements made in the letter furnished pursuant to subsection (j) of this Section 5, except that the specified date referred to shall be a date not more than three business days prior to the Closing Time.

(l)            Lock-Up Agreements.   At the date hereof, the Underwriters shall have received an agreement substantially in the form of Exhibit E hereto signed by the persons listed on Schedule C hereto.

(m)          Additional Documents.   At Closing Time, counsel for the Underwriters shall have been furnished by the Company and the Selling Shareholder with such documents and opinions as it may reasonably require for the purpose of enabling it to pass upon the sale of the Shares as herein contemplated, or in order to evidence the accuracy of any of the representations or warranties, or the fulfillment of any of the conditions, herein contained; and all proceedings taken by the Company and the Selling Shareholder in connection with the sale of the Shares as herein contemplated shall be reasonably satisfactory in form and substance to the Underwriters and counsel for the Underwriters.

(n)           Termination of this Agreement.   If any condition specified in this Section 5 shall not have been fulfilled when and as required to be fulfilled, this Agreement may be terminated by the Underwriters by notice to the Company and the Selling Shareholder at any time at or prior to the Closing Time, and such termination shall be without liability of any party to any other

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party except as provided in Section 4 and except that Sections 1, 6, 7 and 8 shall survive any such termination and remain in full force and effect.

SECTION 6.           Indemnification.

(a)           Indemnification of Underwriters.  The Company agrees to indemnify and hold harmless each Underwriter, its officers and directors and each person, if any, who controls each Underwriter within the meaning of Section 15 of the 1933 Act or Section 20 of the 1934 Act and the successors and assigns of all of the foregoing persons as follows:

(i)            against any and all loss, liability, claim, damage and expense whatsoever, as incurred, arising out of any untrue statement or alleged untrue statement of a material fact contained in the Registration Statement (or any amendment thereto), including the Rule 430B Information, or the omission or alleged omission therefrom of a material fact required to be stated therein or necessary to make the statements therein not misleading or arising out of any untrue statement or alleged untrue statement of a material fact included in any Issuer Free Writing Prospectus, the General Disclosure Package or the Prospectus (or any amendment or supplement thereto), or the omission or alleged omission therefrom of a material fact necessary in order to make the statements therein, in the light of the circumstances under which they were made, not misleading;

(ii)           against any and all loss, liability, claim, damage and expense whatsoever, as incurred, to the extent of the aggregate amount paid in settlement of any litigation, or any investigation or proceeding by any governmental agency or body, commenced or threatened, or any claim whatsoever based upon any such untrue statement or omission, or any such alleged untrue statement or omission; provided that (subject to Section 6(e) below) any such settlement is effected with the written consent of the Company; and

(iii)          against any and all expense whatsoever, as incurred (including the fees and disbursements of counsel chosen by the Underwriters), reasonably incurred in investigating, preparing or defending against any litigation, or any investigation or proceeding by any governmental agency or body, commenced or threatened, or any claim whatsoever based upon any such untrue statement or omission, or any such alleged untrue statement or omission or any such failure, to the extent that any such expense is not paid under (i) or (ii) above;

provided, however, that this indemnity agreement shall not apply to any loss, liability, claim, damage or expense to the extent arising out of any untrue statement or omission or alleged untrue statement or omission made in reliance upon and in conformity with written information furnished to the Company by the Underwriters expressly for use in the Registration Statement (or any amendment thereto), including the Rule 430B Information, the General Disclosure Package or the Prospectus (or any amendment or supplement thereto).

(b)           Indemnification of Underwriters by Selling Shareholder.  The Selling Shareholder agrees to indemnify and hold harmless each Underwriter, its officers and directors and each

23

person, if any, who controls each Underwriter within the meaning of Section 15 of the 1933 Act or Section 20 of the 1934 Act, and the successors and assigns of all of the foregoing persons as follows:

(i)            against any and all loss, liability, claim, damage and expense whatsoever, as incurred, arising out of any untrue statement or alleged untrue statement of a material fact contained in the Registration Statement (or any amendment thereto), including the Rule 430B Information, or the omission or alleged omission therefrom of a material fact required to be stated therein or necessary to make the statements therein not misleading or arising out of any untrue statement or alleged untrue statement of a material fact included in any Issuer Free Writing Prospectus, the General Disclosure Package or the Prospectus (or any amendment or supplement thereto), or the omission or alleged omission therefrom of a material fact necessary in order to make the statements therein, in light of the circumstances under which they were made, not misleading, but only to the extent that such untrue statement or alleged untrue statement or omission or alleged omission relates to information concerning the Selling Shareholder contained in or omitted from the Registration Statement, Issuer Free Writing Prospectus, the General Disclosure Package or the Prospectus, as the case may be;

(ii)           against any and all loss, liability, claim, damage and expense whatsoever, as incurred, to the extent of the aggregate amount paid in settlement of any litigation, or any investigation or proceeding by any governmental agency or body, commenced or threatened, or any claim whatsoever based upon any such untrue statement or omission, or any such alleged untrue statement or omission; provided that (subject to Section 6(e) below) any such settlement is effected with the written consent of the Selling Shareholder; and

(iii)          against any and all expense whatsoever, as incurred (including the fees and disbursements of counsel chosen by the Underwriters), reasonably incurred in investigating, preparing or defending against any litigation, or any investigation or proceeding by any governmental agency or body, commenced or threatened, or any claim whatsoever based upon any such untrue statement or omission, or any such alleged untrue statement or omission or any such failure, to the extent that any such expense is not paid under (i) or (ii) above;

 provided, however, that this indemnity agreement shall not apply to any loss, liability, claim, damage or expense to the extent arising out of any untrue statement or omission or alleged untrue statement or omission made in reliance upon and in conformity with written information furnished to the Company by the Underwriters expressly for use in the Registration Statement (or any amendment thereto), including the Rule 430B Information, the General Disclosure Package or the Prospectus (or any amendment or supplement thereto); and, provided further that the Selling Shareholder shall not be responsible pursuant to this indemnity for losses, expenses, liability or claims for an amount in excess of the net proceeds to be received by the Selling Shareholder (before deducting expenses) from the sale of Shares hereunder.

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(c)           Indemnification of Company, the Company’s Trustees and Officers and the Selling Shareholder and the Selling Shareholder’s Trustees.   Each Underwriter agrees to indemnify and hold harmless the Company, its trustees, each of its officers who signed the Registration Statement, and each person, if any, who controls the Company within the meaning of Section 15 of the 1933 Act or Section 20 of the 1934 Act and the successors and assigns of all of the foregoing persons and the Selling Shareholder, the Selling Shareholder’s trustees and officers, and each person, if any, who controls the Selling Shareholder within the meaning of Section 15 of the 1933 Act or Section 20 of the 1934 Act and the successors and assigns of all of the foregoing persons, against any and all loss, liability, claim, damage and expense described in the indemnity contained in subsections (a) and (b) of this Section, as incurred, but only with respect to untrue statements or omissions, or alleged untrue statements or omissions, made in the Registration Statement (or any amendment thereto), including the Rule 430B Information, the General Disclosure Package, or the Prospectus (or any amendment or supplement thereto) in reliance upon and in conformity with written information furnished to the Company by the Underwriters expressly for use therein.

(d)           Actions against Parties; Notification.   Each indemnified party shall give notice as promptly as reasonably practicable to each indemnifying party of any action commenced against it in respect of which indemnity may be sought hereunder, but failure to so notify an indemnifying party shall not relieve such indemnifying party from any liability hereunder to the extent it is not materially prejudiced as a result thereof and in any event shall not relieve it from any liability which it may have otherwise than on account of this indemnity agreement.  The indemnifying party shall assume the defense thereof, including the employment of counsel reasonably satisfactory to such indemnified parties and payment of all fees and expenses.  The indemnified parties shall have the right to employ separate counsel in any such action and participate in the defense thereof, but the fees and expenses of such counsel shall be at the expense of the indemnified parties unless (i) the employment of such counsel shall have been specifically authorized in writing by the indemnifying party, (ii) the indemnifying party shall have failed to assume the defense and employ counsel or (iii) the named parties to any such action (including any impleaded parties) include both the indemnified parties and the indemnifying party and the indemnified parties shall have been advised by such counsel that there may be one or more legal defenses available to them which are different from or additional to those available to the indemnifying party (in which case the indemnifying party shall not have the right to assume the defense of such action on behalf of the indemnified parties, it being understood, however, that the indemnifying party shall not, in connection with any one such action or separate but substantially similar or related actions in the same jurisdiction arising out of the same general allegations or circumstances, be liable for the fees and expenses of more than one separate firm of attorneys (in addition to any local counsel) for the indemnified parties, which firm shall be designated in writing by the indemnified parties and that all such fees and expenses shall be reimbursed as they are incurred).  No indemnifying party shall, without the prior written consent of the indemnified parties, settle or compromise or consent to the entry of any judgment with respect to any litigation, or any investigation or proceeding by any governmental agency or body, commenced or threatened, or any claim whatsoever in respect of which indemnification or contribution could be sought under this Section 6 or Section 7 hereof (whether or not the indemnified parties are actual or potential parties thereto), unless such settlement, compromise or consent (i) includes an unconditional release of each indemnified party from all liability arising out of such litigation, investigation, proceeding or claim and (ii)

25

does not include a statement as to or an admission of fault, culpability or a failure to act by or on behalf of any indemnified party.

(e)                                  Settlement without Consent if Failure to Reimburse.  If at any time an indemnified party shall have requested an indemnifying party to reimburse the indemnified party for fees and expenses of counsel, such indemnifying party agrees that it shall be liable for any settlement of the nature contemplated by Section 6(a)(ii) or 6(b)(ii), as the case may be, effected without its written consent if (i) such settlement is entered into more than 45 days after receipt by such indemnifying party of the aforesaid request, (ii) such indemnifying party shall have received notice of the terms of such settlement at least 30 days prior to such settlement being entered into and (iii) such indemnifying party shall not have reimbursed such indemnified party in accordance with such request prior to the date of such settlement.

SECTION 7.                                Contribution.  If the indemnification provided for in Section 6 hereof is for any reason unavailable to or insufficient to hold harmless an indemnified party in respect of any losses, liabilities, claims, damages or expenses referred to therein, then each indemnifying party shall contribute to the aggregate amount of such losses, liabilities, claims, damages and expenses incurred by such indemnified party, as incurred, (i) in such proportion as is appropriate to reflect the relative benefits received by the Company and the Selling Shareholder, on the one hand, and the Underwriters, on the other hand, from the offering of the Shares pursuant hereto or (ii) if the allocation provided by clause (i) is not permitted by applicable law, in such proportion as is appropriate to reflect not only the relative benefits referred to in clause (i) above but also the relative fault of the Company and the Selling Shareholder, on the one hand, and the Underwriters, on the other hand, in connection with the statements or omissions which resulted in such losses, liabilities, claims, damages or expenses, as well as any other relevant equitable considerations.

The relative benefits received by the Company and the Selling Shareholder, on the one hand, and the Underwriters, on the other hand, in connection with the offering of the Shares pursuant hereto shall be deemed to be in the same respective proportions as the total net proceeds from the offering of such Shares (before deducting expenses) received the Selling Shareholder and the total underwriting discount received by the Underwriters, in each case as set forth on the cover of the Prospectus, bear to the aggregate initial public offering price of such Shares.

The relative fault of the Company and the Selling Shareholder, on the one hand, and the Underwriters, on the other hand, shall be determined by reference to, among other things, whether any such untrue or alleged untrue statement of a material fact or omission or alleged omission to state a material fact relates to information supplied by the Company or the Selling Shareholder or by the Underwriters and the parties’ relative intent, knowledge, access to information and opportunity to correct or prevent such statement or omission.

The Company, the Selling Shareholders and the Underwriters agree that it would not be just and equitable if contribution pursuant to this Section 7 were determined by pro rata allocation or by any other method of allocation which does not take account of the equitable considerations referred to above in this Section 7. The aggregate amount of losses, liabilities, claims, damages and expenses incurred by an indemnified party and referred to above in this Section 7 shall be deemed to include any legal or other expenses reasonably incurred by such

26

indemnified party in investigating, preparing or defending against any litigation, or any investigation or proceeding by any governmental agency or body, commenced or threatened, or any claim whatsoever based upon any such untrue or alleged untrue statement or omission or alleged omission.

Notwithstanding the provisions of this Section 7, the Underwriters shall not be required to contribute any amount in excess of the amount by which the total price at which the Shares underwritten by the Underwriters and distributed to the public were offered to the public exceeds the amount of any damages which the Underwriters have otherwise been required to pay by reason of any such untrue or alleged untrue statement or omission or alleged omission.

No person guilty of fraudulent misrepresentation (within the meaning of Section 11(f) of the 1933 Act) shall be entitled to contribution from any person who was not guilty of such fraudulent misrepresentation.

For purposes of this Section 7, each person, if any, who controls each Underwriter within the meaning of Section 15 of the 1933 Act or Section 20 of the 1934 Act shall have the same rights to contribution as such Underwriter, each trustee of the Company, each officer of the Company who signed the Registration Statement, and each person, if any, who controls the Company within the meaning of Section 15 of the 1933 Act or Section 20 of the 1934 Act shall have the same rights to contribution as the Company, each trustee of the Selling Shareholder, and each person, if any, who controls the Selling Shareholder within the meaning of Section 15 or the 1933 Act or Section 20 of the 1934 Act shall have the same rights to contribution as the Selling Shareholder.

SECTION 8.                                Representations, Warranties and Agreements to Survive Delivery.  All representations, warranties and agreements contained in this Agreement of the Company and the Selling Shareholder or in certificates of officers of the Company or the Selling Shareholder or any of their respective subsidiaries submitted pursuant hereto shall remain operative and in full force and effect, regardless of any investigation made by or on behalf of the Underwriters or controlling persons, or by or on behalf of the Company, and shall survive delivery of and payment for the Shares.

SECTION 9.                                Termination.

(a)                                  The Underwriters may terminate this Agreement, by notice to the Company and the Selling Shareholder, at any time at or prior to Closing Time (i) if there has occurred any change, or any development or event involving a prospective change since the respective dates as of which information is given in the Prospectus (exclusive or any supplement thereto) or the General Disclosure Package, in the condition (financial or other), business, properties or results of operations of the Company and its subsidiaries taken as one enterprise which, in the judgment of the Underwriters, is material and adverse and makes it impractical or inadvisable to proceed with completion of the public offering or the sale of and payment for the Shares; (ii) any change in U.S. or international financial, political or economic conditions or currency exchange rates or exchange controls as would, in the judgment of the Underwriters, be likely to prejudice materially the success of the proposed sale or distribution of the Shares, whether in the primary market or in respect of dealings in the secondary market; (iii) if trading in the Company’s

27

Common Shares has been suspended by the Commission or the NYSE; (iv) any material suspension or material limitation of trading in securities generally on the NYSE, or any setting of minimum prices for trading on such exchange, or any suspension of trading of any securities of the Company on any exchange or in the over-the-counter market; (v) any banking moratorium declared by U.S. Federal or New York authorities; (vi) any major disruption of settlements of securities or clearance services in the United States; or (vii) any attack on, outbreak or escalation of hostilities or act of terrorism involving the United States, any declaration of war by Congress or any other national or international calamity or emergency if, in the judgment of the Underwriters, the effect of any such attack, outbreak, escalation, act, declaration, calamity or emergency makes it impractical or inadvisable to proceed with completion of the public offering or the sale of and payment for the Shares.

(b)                                 If this Agreement is terminated pursuant to this Section 9, such termination shall be without liability of any party to any other party except as provided in Section 4, and provided further that Sections 6 and 7 hereof shall survive such termination.

SECTION 10.                          Notices.  All notices and other communications hereunder shall be in writing and shall be deemed to have been duly given if mailed or transmitted by any standard form of telecommunication. Notices to the Underwriters shall be directed to Merrill Lynch, Pierce, Fenner & Smith Incorporated at 4 World Financial Center, New York, NY 10080, Attention: Jack Vissicchio, Managing Director, and to RBC Capital Markets Corporation at One Liberty Plaza, 6^th Floor New York, New York 10006, Attention: Michael Coster, Managing Director; notices to the Company shall be directed to it at 400 Centre Street, Newton, MA 02458, attention of John G. Murray; and notices to the Selling Shareholder shall be directed to it at the offices of the Selling Shareholder at 400 Centre Street, Newton, Massachusetts 02458, Attention: John C. Popeo, Treasurer and Chief Financial Officer.

SECTION 11.                          No Fiduciary Relationship. The Company and the Selling Shareholder acknowledge and agree that (i) the purchase and sale of the Shares pursuant to this Agreement, is an arm’s-length commercial transaction between the Company and the Selling Shareholder, on the one hand, and the Underwriters, on the other hand, (ii) in connection with the offering contemplated hereby and the process leading to such transaction, each Underwriter is and has been acting solely as a principal and is not the agent or fiduciary of the Company or its shareholders, creditors, employees, the Selling Shareholder, its shareholders, creditors, employees or any other party, (iii) no Underwriter has assumed or will assume an advisory or fiduciary responsibility in favor of the Company or the Selling Shareholder with respect to the offering contemplated hereby or the process leading thereto (irrespective of whether such Underwriter has advised or is currently advising the Company or Selling Shareholder on other matters) and no Underwriter has any obligation to the Company or Selling Shareholder with respect to the offering contemplated hereby except the obligations expressly set forth in this Agreement, (iv) the Underwriters and their respective affiliates may be engaged in a broad range of transactions that involve interests that differ from those of the Company or Selling Shareholder, and (v) the Underwriters have not provided any legal, accounting, regulatory or tax advice with respect to the transaction contemplated hereby and the Company and the Selling Shareholder have consulted their own legal, accounting, regulatory and tax advisors to the extent they deemed appropriate.

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SECTION 12.                          Parties.  This Agreement shall inure to the benefit of and be binding upon the Company, the Selling Shareholder and the Underwriters and their and their respective successors. Nothing expressed or mentioned in this Agreement is intended or shall be construed to give any person, firm or corporation, other than the Underwriters and the Company and their respective successors and the controlling persons and officers and trustees referred to in Sections 6 and 7 and their heirs and legal representatives, any legal or equitable right, remedy or claim under or in respect of this Agreement or any provision herein contained. This Agreement and all conditions and provisions hereof are intended to be for the sole and exclusive benefit of the parties hereto and their respective successors, and said controlling persons and officers and trustees and their heirs and legal representatives, and for the benefit of no other person, firm or corporation. No purchaser of Shares from an Underwriter shall be deemed to be a successor by reason merely of such purchase.

SECTION 13.                          GOVERNING LAW AND TIME.  THIS AGREEMENT SHALL BE GOVERNED BY AND CONSTRUED IN ACCORDANCE WITH THE LAWS OF THE STATE OF NEW YORK. SPECIFIED TIMES OF DAY REFER TO NEW YORK CITY TIME.

SECTION 14.                          Effect of Headings.  The Article and Section headings herein are for convenience only and shall not affect the construction hereof.

[Signature Page Follows]

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If the foregoing is in accordance with your understanding of our agreement, please sign and return to the Company and the Selling Shareholder a counterpart hereof, whereupon this Agreement, along with all counterparts, will become a binding agreement among the Underwriters, the Company and the Selling Shareholder in accordance with its terms.

The foregoing Agreement is hereby,

confirmed and accepted as of the date first above written.

30

Schedule A

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Schedule B

Schedule of Issuer Free Writing Prospectuses included in the General Disclosure Package

None

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Schedule C

Locked Up Managing Trustees and Executive Officers

Gerard M. Martin
Barry M. Portnoy
John G. Murray
Mark L. Kleifges
Ethan S. Bornstein

C-1

Exhibit A

FORM OF OPINION OF COMPANY’S COUNSEL

TO BE DELIVERED PURSUANT TO

SECTION 5(b)

(1)                                  (A)  Each Significant Subsidiary of the Company which is not organized under the laws of the State of Maryland, if any (each, a “Non-Maryland Significant Subsidiary”), has been duly organized and is validly existing as a corporation, partnership, limited liability company, trust or real estate investment trust, as the case may be, and in good standing under the laws of its jurisdiction of incorporation or organization; and (B) each Non-Maryland Significant Subsidiary has the corporate, partnership, limited liability company or trust (as applicable) power to carry on its business and to own and lease and operate its properties as described in the Registration Statement, the General Disclosure Package and the Prospectus. The Company is duly qualified and is in good standing in each jurisdiction other than the State of Maryland in which the ownership or leasing of its properties requires such qualification, except where the failure to so qualify or be in good standing would not result in a Material Adverse Effect.

(2)                                  To such counsel’s knowledge, none of the Company’s issued and outstanding capital shares were issued in violation of any rights similar to preemptive rights of any holder of capital shares of the Company.

(3)                                  The Agreement has been duly delivered by the Company.

(4)                                  To such counsel’s knowledge, the Shares, when delivered to the Underwriters against payment therefor in accordance with the terms of the Agreement, will be free of any rights similar to preemptive rights that entitle any person (other than the Underwriters and their successors and assigns) to acquire any Shares upon the sale thereof by the Selling Shareholder.

(5)                                  (a)  The statements in the Statutory Prospectus under the captions “Description of Common Shares,” “Description of Certain Provisions of Maryland Law and of Our Declaration of Trust and Bylaws – Shareholder Liability,” “Description of Certain Provisions of Maryland Law and of Our Declaration of Trust and Bylaws – Trustees,” “Description of Certain Provisions of Maryland Law and of Our Declaration of Trust and Bylaws – Business Combinations” and “Description of Certain Provisions of Maryland Law and of Our Declaration of Trust and Bylaws – Control Share Acquisitions” and (b) the statements under the captions “Item 1. Business – Principal Management Agreement or Lease Features” and “Item 7. Management’s Discussion and Analysis of Financial Condition and Results of Operations – 2005 Developments” and “Item 7. Management’s Discussion and Analysis of Financial Condition and Results of Operations – Liquidity and Capital Resources” in the Annual Report, insofar as such statements constitute summaries of matters arising under Massachusetts law or the federal law of the United States, documents or proceedings referred to therein, fairly present in all material respects the information called for with respect to such legal matters, documents and proceedings.

(6)                                  The statements under the captions “Federal Income Tax and ERISA Considerations” in the Prospectus and the statements under the captions “Item 1. Business –

A-1

Federal Income Tax Considerations” and “Item 1. Business – ERISA Plans, Keogh Plans and Individual Retirement Accounts”, as of the date of filing of the Annual Report with the Commission, insofar as such statements constitute summaries of legal matters or documents referred to therein, fairly present in all material respects the information called for with respect to such legal matters and documents.

(7)                                  To such counsel’s knowledge, except as disclosed in the Registration Statement, the General Disclosure Package and the Prospectus, the Company is not in violation of its declaration of trust or bylaws and no default by the Company exists in the due performance or observance of any obligation, agreement, covenant or condition contained in any contract, indenture, mortgage, loan agreement, note, lease or other agreement or instrument that is described or referred to in the Registration Statement, the General Disclosure Package or the Prospectus or filed or incorporated by reference as an exhibit to the Registration Statement and to which the Company or any of its subsidiaries is a party or by which it or any of them may be bound or to which any of the assets, properties or operations of the Company is subject, except for such violations or defaults which would not result in a Material Adverse Effect.

(8)                                  The execution, delivery and performance of the Agreement and the consummation of the transactions contemplated in the Agreement and in the Registration Statement, the General Disclosure Package and the Prospectus and compliance by the Company with its obligations thereunder do not and will not, whether with or without the giving of notice or passage of time or both, conflict with or constitute a breach of, or default or Repayment Event under, or result in the creation or imposition of any lien, charge or encumbrance upon any assets, properties or operations of the Company pursuant to, any material contract, indenture, mortgage, deed of trust, loan or credit agreement, note, lease or any other agreement or instrument that is described or referred to in the Registration Statement or the Prospectus or filed or incorporated by reference as an exhibit to the Registration Statement and to which the Company or any of its subsidiaries is a party or by which it or any of them may be bound or to which any of the assets, properties or operations of the Company is subject, nor will such action result in any violation in any material respect any applicable Massachusetts or United States federal law, statute, rule, regulation, judgment, order, writ or decree, known to such counsel, of any government, government instrumentality or court, domestic or foreign, having jurisdiction over the Company or any of its subsidiaries or any of their assets, properties or operations, in each case except as disclosed in the Prospectus.

(9)                                  To such counsel’s knowledge, except as disclosed in the Registration Statement the General Disclosure Package or the Prospectus, there is not pending or threatened any action, suit, proceeding, inquiry or investigation to which the Company is a party or to which the assets, properties or operations of the Company is subject, before or by any court or government agency or body which would, if determined adversely to the Company, result in a Material Adverse Effect or materially and adversely affect the consummation of the transactions contemplated under the Agreement, the sale of the Shares pursuant thereto or the right or ability of the Company to perform its obligations thereunder.

(10)                            To such counsel’s knowledge, there is no contract or other document which is required to be described in the Registration Statement, the General Disclosure Package or the

A-2

Prospectus that is not described therein or is required to be filed as an exhibit to the Registration Statement which is not so filed.

(11)                            To such counsel’s knowledge, there are no statutes or regulations that are required to be described in the Registration Statement, the General Disclosure Package or the Prospectus that are not described as required.

(12)                            The Registration Statement has been declared effective under the 1933 Act. Any required filing of the Prospectus pursuant to Rule 424(b) has been made in the manner and within the time period required by Rule 424(b) (without reference to Rule 424(b)(8); any required filing of each Issuer Free Writing Prospectus pursuant to Rule 433 has been made in the manner and within the time period required by Rule 433(d)). To such counsel’s knowledge, no stop order suspending the effectiveness of the Registration Statement has been issued under the 1933 Act and no proceedings for that purpose have been initiated or are pending or threatened by the Commission.

(13)                            The Registration Statement, the General Disclosure Package and the Prospectus, excluding the documents incorporated by reference therein, and each amendment or supplement to the Registration Statement, General Disclosure Package and Prospectus, excluding the documents incorporated by reference therein, as of their respective effective or issue dates (other than financial statements and other financial data and schedules, as to which such counsel need not express any opinion), complied as to form in all material respects with the requirements of the 1933 Act.

(14)                            Each document incorporated by reference in the Registration Statement, the General Disclosure Package or the Prospectus (other than financial statements and other financial data and schedules, as to which such counsel need not express any opinion) complied as to form in all material respects with the 1934 Act when filed with the Commission.

(15)                            No authorization, approval, consent, license, order, registration, qualification, or decree of any federal or Massachusetts court or governmental authority or agency is necessary or required for the due authorization, execution or delivery by the Company of the Agreement or for the performance by the Company of the transactions contemplated under the General Disclosure Package, the Prospectus or the Agreement, other than those which have already been made, obtained or rendered as applicable.

(16)                            The Company is not an “investment company” within the meaning of the Investment Company Act of 1940, as amended.

(17)                            The Company has qualified to be taxed as a real estate investment trust pursuant to Sections 856-860 of the Code for each of the taxable years ended December 31, 1995 through December 31, 2005, and the Company’s current anticipated investments and its current plan of operation will enable it to continue to meet the requirements for qualification and taxation as a real estate investment trust under the Code; actual qualification of the Company as a real estate investment trust, however, will depend upon the Company’s continued ability to meet, and its meeting, through actual annual operating results and distributions, the various qualification tests imposed under the Code.

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(18)                            The Manager is a limited liability company, duly organized, validly existing and in good standing under the laws of the State of Delaware, and has the requisite limited liability company power and authority to conduct its business as described in the Prospectus and to own and operate its material properties.

(19)                            The Advisory Agreement has been duly authorized and executed by the Manager and delivered by parties thereto and constitutes the valid agreement of the parties thereto, enforceable in accordance with its terms.

(20)                            Although such counsel is not passing upon, and does not assume responsibility for, the factual accuracy, completeness or fairness of the statements contained in the Registration Statement, the General Disclosure Package and the Prospectus and need not have made any independent check or verification thereof (except as and to the extent stated in paragraphs 5 and 6 above), on the basis of such counsel’s participation, in the course of the Company’s preparation of the Registration Statement, the General Disclosure Package and the Prospectus, in conferences with officers and other representatives of the Company, counsel for the Underwriters and representatives of the independent public accountants for the Company and of the Underwriters, at which the contents of the Registration Statement, the General Disclosure Package and Prospectus and related matters were discussed, no facts have come to such counsel’s attention that would lead them to believe that (x) the Registration Statement, including the Rule 430B Information, as of the filing of the Annual Report with the Commission, and at each deemed effective date with respect the Underwriters pursuant to Rule 430B(f)(2) of the 1933 Act Regulations, contained an 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 not misleading or (y) the Prospectus or any amendment or supplement thereto, at the time the Prospectus was issued, at the time any such amended or supplement prospectus was issued or at the Closing Time, included or includes an untrue statement of a material fact or omitted or omits to state a material fact necessary in order to make the statements therein, in light of the circumstances under which they were made, not misleading. In addition, nothing has come to the attention of such counsel that has caused it to believe that the General Disclosure Package, as of the Applicable Time included an untrue statement of any material fact or omitted to state a material fact necessary to make the statements therein, in the light of the circumstances under which they were made, not misleading, except that such counsel need not express any views as to the financial statements and other financial data and schedules included in the Registration Statement, the Prospectus or the General Disclosure Package.

Such counsel need not express any opinion as to compliance with, or filings with or authorizations, approvals, consents, licenses, orders, registrations, qualifications or decrees under, state securities or “Blue Sky” laws. Such counsel’s opinions with respect to the validity or enforceability of agreements may be qualified to the extent that the obligations, rights and remedies of parties may be limited by (i) bankruptcy, insolvency, reorganization, moratorium or other similar laws affecting generally creditors’ rights and remedies, and (ii) general principles of equity (regardless of whether considered in a proceeding at law or in equity), and otherwise in a manner acceptable to the Underwriters.

A-4

Exhibit B

FORM OF OPINION OF SPECIAL MARYLAND COUNSEL TO THE COMPANY
TO BE DELIVERED PURSUANT TO SECTION 5(c)

(1)                                  (A)  The Company is a real estate investment trust duly formed and validly existing under and by virtue of the laws of the State of Maryland and is in good standing with the State Department of Assessments and Taxation of the State of Maryland (the “SDAT”), with trust power to carry on its business and to own and lease its properties, in all material respects as described in the Prospectus, the General Disclosure Package and the Prospectus under the captions “The Company,” and “Use of Proceeds,”(B) each Significant Subsidiary organized under the laws of Maryland, if any (each, a “Maryland Significant Subsidiary”) is a corporation, partnership, limited liability company, trust or real estate investment trust, as the case may be, duly organized and validly existing under and by virtue of the laws of the State of Maryland and is in good standing with the SDAT, with corporate, partnership, limited liability company or trust (as applicable) power to carry on its business and to own or lease its properties, in all material respects as described in the Registration Statement, the General Disclosure Package and the Prospectus under the captions “The Company” and “Use of Proceeds”; and (C) to enter into and perform its obligations under, or as contemplated under, the Agreement.

(2)                                  All of the issued and outstanding shares of beneficial interest of, or other ownership interests in, each of the Company’s material subsidiaries which are organized under the laws of the State of Maryland have been duly authorized and validly issued and are fully paid and, except as to such subsidiaries that are partnerships or limited liability companies, nonassessable.

(3)                                  The Company has the trust power to execute, deliver and perform its obligations under the Agreement. The execution and delivery of the Agreement and the performance by the Company of its obligations thereunder have been duly authorized by the Board of Trustees of the Company. The Agreement has been duly executed by the Company, and to such counsel’s knowledge, delivered by the Company.

(4)                                  The execution, delivery and performance by the Company of the Agreement and the consummation of the transactions contemplated therein will not constitute a violation of the Maryland REIT Law, the Declaration of Trust or the Bylaws of the Company or the declaration of trust or bylaws or other organizational documents of any Maryland Significant Subsidiary.

(5)                                  So far as is known to such counsel, except as disclosed in the General Disclosure Package or the Prospectus, neither the Company nor any of the Maryland Significant Subsidiaries is in violation of its respective declaration of trust or bylaws or other organizational documents, except for any such violations which would not in the aggregate result in a material adverse effect on the business, operations, earnings, business prospects, properties or condition (financial or otherwise) of the Company and its subsidiaries taken as a whole.

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(6)                                  The execution, delivery and performance of the Agreement and the consummation of the transactions contemplated therein and in the Registration Statement, the General Disclosure Package and the Prospectus and compliance by the Company with its obligations thereunder do not and will not result in a violation of the Declaration of Trust or the Bylaws or in any material respect the Maryland REIT Law.

(7)                                  The information in the Prospectus under the captions “Description of Common Shares” and “Description of Certain Provisions of Maryland Law and of Our Declaration of Trust and Bylaws—Shareholder Liability,” “—Restrictions on Transfer of Shares,” “—Business Combinations” and “—Control Share Acquisitions” as of the date of the Prospectus and as of Closing Time, as modified by the related disclosure in the documents incorporated by reference in the Registration Statement, the General Disclosure Package and in the Prospectus, insofar as such information relates to provisions of Maryland law, fairly summarizes such provisions of Maryland law in all material respects.

(8)                                  The Shares conform in all material respects to the description thereof in the Registration Statement, the General Disclosure Package, and the Prospectus under the caption “Description of Common Shares.”

(9)                                  As of the Applicable Time and the date of the Prospectus, the issued and outstanding shares of beneficial interest of the Company have been duly authorized and validly issued and are fully paid and nonassessable (except as otherwise described in the Registration Statement, the General Disclosure Package and the Prospectus). The authorized shares of beneficial interest of the Company conform as to legal maters in all material respects to the description thereof contained in the Prospectus under the captions “Description of Common Shares” and “Description of Common Shares—Preferred Shares,” as modified by the related disclosure in the documents incorporated by reference in the Registration Statement, the General Disclosure Package and the Prospectus.

(10)                            No authorization, approval, consent, license, order or decree of, or filing, registration of qualification with, any Maryland governmental authority or agency having jurisdiction over the Company or the Maryland Significant Subsidiaries (other than any Maryland governmental authority or agency dealing with securities laws or laws relating to the ownership or operation of the properties owned by the Company located in the State of Maryland, as to neither of which such counsel need express any opinion) which has not been obtained is necessary or required for the due authorization, execution, delivery by the Company of the Agreement or for the performance by the Company of the transactions contemplated under the Prospectus, the General Disclosure Package or the Agreement, other than those which have already been made, obtained or rendered, as applicable.

(11)                            The execution and delivery of the Advisory Agreement has been duly authorized by the Board of Trustees of the Company. The Advisory Agreement has been duly executed and, to such counsel’s knowledge, delivered by the Company.

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Exhibit C

FORM OF OPINION OF SELLING SHAREHOLDER’S COUNSEL

TO BE DELIVERED PURSUANT TO

SECTION 5(d)

(1)                                  This Agreement has been duly delivered by the Selling Shareholder.

(2)          The execution, delivery and performance of this Agreement by the Selling Shareholder and the transactions contemplated hereby do not and will not conflict with, or result in any breach of, or constitute a violation under (nor constitute any event which with notice, lapse of time, or both, would result in any breach of, or constitute a default under) (A) any provision of any material agreement or other instrument known to such counsel to which the Selling Shareholder is a party or by which its properties may be bound or affected, or (B) any federal, Massachusetts or New York law or regulation or rule known to such counsel, or, to such counsel’s knowledge, any decree, to which the Selling Shareholder may be subject other than, in the case of clause (A), such conflicts, breaches, violations or defaults as would not, individually or in the aggregate, have a material adverse effect on the ability of the Selling Shareholder to consummate the transactions contemplated hereby.

(3)          No approval, authorization, consent or order of or filing with any federal, Massachusetts or New York governmental or regulatory commission, board, body, authority or agency or with the NYSE, or approval of the shareholders of the Selling Shareholder, is required in connection with the sale of the Shares or the consummation by the Selling Shareholder of the transactions contemplated hereby, other than registration of the Shares under the Act and any necessary qualification under the securities or blue sky laws of the various jurisdictions in which the Shares are being offered by the Underwriters.

(4)          At the Closing Time, assuming that the certificate or certificates representing the Shares are registered in the name of Cede & Co. (“Cede”), as nominee of the Depository Trust Company (“DTC”) and assuming that the Underwriters have no notice of any “adverse claim” (within the meaning of Sections 8-102 and 8-105 of the New York Uniform Commercial Code (the “NYUCC”)) to such Shares, under Section 8-501 of the NYUCC, upon the crediting of such Shares by DTC by book-entry to the securities accounts of the respective Underwriters, each Underwriter will acquire securities entitlements to the shares credited to its account and, under Section 8-502 of the NYUCC, an action based on an “adverse claim” (as defined in Section 8-102 of the NYUCC) to such Shares may not be asserted against the Underwriters with respect to such security entitlements.

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Exhibit D

FORM OF OPINION OF SPECIAL MARYLAND COUNSEL FOR THE SELLING SHAREHOLDER TO BE DELIVERED PURSUANT TO SECTION 5(e)

(1)                                  The Selling Shareholder is a real estate investment trust duly organized and existing under and by virtue of the laws of the State of Maryland and is in good standing with the SDAT, with trust power to execute and deliver this Agreement and to sell and deliver the Shares to be sold by the Selling Shareholder as herein contemplated.

(2)          The execution and delivery of this Agreement have been duly and validly authorized by all necessary trust action on the part of the Selling Shareholder; this Agreement has been duly and validly executed and, so far as is known to such counsel, delivered by the Selling Shareholder.

(3)          The execution, delivery and performance of this Agreement and the transactions contemplated hereby and by the Prospectus, do not and will not conflict with, or result in any breach of, or constitute a violation under (nor constitute any event which with notice, lapse of time, or both, would result in any breach of, or constitute a default under) (a) any provisions of the Selling Shareholder’s declaration of trust, charter or by-laws or other organizational documents of the Selling Shareholder (b) any Maryland law, regulation, rule or decree to which the Selling Shareholder may be subject (except that no opinion is expressed herein with respect to the applicability or effect of the securities laws of the State of Maryland).

(4)          No approval, authorization, consent or order of, or filing with, any Maryland governmental or regulatory commission, board, body, authority or agency having jurisdiction over the Selling Shareholder is required in connection with the execution, delivery and performance of this Agreement, the sale of the Shares to be sold by the Selling Shareholder and the consummation of the transactions as contemplated hereby and by the Prospectus (except that no opinion is expressed herein with respect to the applicability or effect of the securities laws of the State of Maryland).

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Exhibit E

March 21, 2006

Merrill Lynch, Pierce, Fenner & Smith
 Incorporated

RBC Capital Markets Corporation

c/o Merrill Lynch, Pierce, Fenner & Smith
   Incorporated

4 World Financial Center

New York, New York 10080

Re:                               Proposed Secondary Offering of Hospitality Properties Trust Shares

Dear Sirs:

The undersigned, a shareholder and an executive officer and/or managing trustee of Hospitality Properties Trust, a Maryland real estate investment trust (the “Company”), understands that Merrill Lynch, Pierce, Fenner & Smith Incorporated (“Merrill Lynch”) and RBC Capital Markets Corporation (“RBC Capital Markets”), propose to enter into an Underwriting Agreement (the “Agreement”) with the Company and HRPT Properties Trust (“HRPT”) providing for the public offering of common shares of beneficial interest, par value $.01 per share (the “Common Shares”) of the Company owned by HRPT. In recognition of the benefit that such an offering will confer upon the undersigned as a shareholder, and for other good and valuable consideration, the receipt and sufficiency of which are hereby acknowledged, the undersigned agrees with each underwriter to be named in the Agreement that, during a period of 30 days from the date of the Agreement, the undersigned will not, without the prior written consent of Merrill Lynch and RBC Capital Markets, directly or indirectly, (i) offer, pledge, sell, contract to sell, sell any option or contract to purchase, purchase any option or contract to sell, grant any option, right or warrant for the sale of, or otherwise dispose of or transfer any shares of the Company’s Common Shares or any securities convertible into or exchangeable or exercisable for Common Shares, whether now owned or hereafter acquired by the undersigned or with respect to which the undersigned has or hereafter acquires the power of disposition, or file, or cause to be filed, any registration statement under the Securities Act of 1933, as amended, with respect to any of the foregoing (collectively, the “Lock-Up Securities”) or (ii) enter into any swap or any other agreement or any transaction that transfers, in whole or in part, directly or indirectly, the economic consequence of ownership of the Lock-Up Securities, whether any such swap or transaction is to be settled by delivery of Common Shares or other securities, in cash or otherwise.

Notwithstanding the foregoing, and subject to the conditions below, the undersigned may nonetheless (a) transfer Common Shares by way of testate or intestate succession or by operation of law, (b) transfer Common Shares to members of the undersigned’s immediate family or to a trust, partnership, limited liability company or other entity, all of the beneficial interests of which

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are held by the undersigned or members of the undersigned’s immediate family, and (c) transfer Common Shares to charitable organizations; provided, however, in each case, the transferee shall have agreed in writing to be bound by the restrictions on transfer contained in the immediately preceding paragraph and such transfer is not effective until the agreement to be bound by the restrictions on transfer is executed by the transferee.

This letter shall terminate and be of no further force and effect unless the Agreement has been entered into and dated not later than March 31, 2006.

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