287TH AMENDMENT TO THE SECOND AMENDED AND RESTATED LIMITED PARTNERSHIP AGREEMENT OF SUN COMMUNITIES OPERATING LIMITED PARTNERSHIP

THIS 287^TH AMENDMENT TO THE SECOND AMENDED AND RESTATED LIMITED PARTNERSHIP AGREEMENT OF SUN COMMUNITIES OPERATING LIMITED PARTNERSHIP (this “Amendment”) is made and entered into on February 8, 2013 (“Effective Date”), by and between SUN COMMUNITIES, INC., a Maryland corporation (the “General Partner”), as the general partner of SUN COMMUNITIES OPERATING LIMITED PARTNERSHIP, a Michigan limited partnership (the “Partnership”), and PETERS POND RV RESORT INC., a Massachusetts corporation, as agent for the Project Entities (as defined in the Omnibus Agreement) (collectively, the “Series A-3 Preferred Partners”).

A.    Robert Morgan, Robert Moser, the Project Entities, Ideal Private Resorts LLC, the Partnership and certain wholly-owned subsiairies of the Partnership entered into that certain Omnibus Agreement dated as of December 9, 2012, as amended (the “Omnibus Agreement”).

B.    Pursuant to the Omnibus Agreement and those certain Contribution Agreements dated December 9, 2012, as amended (the “Contribution Agreements”), the Series A-3 Preferred Partners have contributed certain assets (the “Contributed Assets”) to the Partnership in consideration for the issuance by the Partnership of Series A-3 Preferred Units.

C.    The signatories hereto desire to amend that certain Second Amended and Restated Limited Partnership Agreement of Sun Communities Operating Limited Partnership, dated as of April 30, 1996, as amended by those certain amendments numbered one through two hundred eighty six (collectively, as amended, the “Agreement”) as set forth herein; any capitalized term not defined herein shall have the respective meaning ascribed to it in the Agreement.

D.    Section 11 of the Agreement authorizes the General Partner, as the holder of more than fifty percent (50%) of the OP Units, to amend the Agreement.

NOW, THEREFORE, in consideration of the foregoing, of the mutual promises set forth herein, and of other good and valuable consideration, the receipt and sufficiency of which are hereby acknowledged, the parties hereto, intending to be legally bound, agree to continue the Partnership and amend the Agreement as follows:

1.    Admission of New Partners. As of the Effective Date, the Series A-3 Preferred Partners have contributed the Contributed Assets to the Partnership in exchange for the issuance by the Partnership to the Series A-3 Preferred Partners of an aggregate of 40,267.50 Series A-3 Preferred Units and certain other consideration. The Series A-3 Preferred Units issued to the Series A-3 Preferred Partners have been duly issued and fully paid. The Series A-3 Preferred Partners are hereby admitted to the Partnership as new Limited Partners, and by execution of this Amendment the Series A-3 Preferred Partners have agreed to be bound by all of the terms and conditions of the Agreement, as amended hereby, and hereby acknowledge receipt of a copy of the Agreement. Exhibit A of the Agreement is hereby deleted in its entirety and is replaced with Exhibit A to this Amendment. The Series A-3 Preferred Partners expressly agree to and adopt the power of attorney granted to the General Partner in Section 6.6 of the Agreement.

2.    Investment Representations. Each Series A-3 Preferred Partner hereby represents and warrants to the Partnership as follows. Each Series A-3 Preferred Partner hereby agrees to indemnify the Partnership, the General

Partner and its directors, officers, employees and agents, against all liability, damages, loss, costs and expenses (including reasonable attorneys' fees and expenses) which any of them may incur by reason of the falsity of any representation or breach of any warranty made by such Series A-3 Preferred Partner.

(a)    Such Series A-3 Preferred Partner has been furnished with or has had access to, and has carefully reviewed, the periodic filings of the General Partner made with the Securities and Exchange Commission, the organizational documents of the Partnership and such other documents relating to the General Partner and the Partnership as it may have requested. Such Series A-3 Preferred Partner has relied solely on the information contained therein and has not received or relied upon any other representations, warranties or assurances of the Partnership or the General Partner or any persons acting on their behalf, whether written or oral, other than the representations and warranties set forth in the Contribution Agreements. Such Series A-3 Preferred Partner understands that all documents, records and books pertaining to its investment in Series A-3 Preferred Units have been made available for inspection by it and its attorneys, accountants, investment advisors and other representatives. Such Series A-3 Preferred Partner and its advisors and representatives have had a reasonable opportunity to ask questions of and receive answers from the Partnership and the General Partner, or a person or persons acting on its behalf, concerning the terms and conditions of the issuance of the Series A-3 Preferred Units and the business, affairs and prospects of the Partnership and the General Partner, and all such questions have been answered to such Series A-3 Preferred Partner’s full satisfaction.

(b)    The Series A-3 Preferred Units were not offered for sale to such Series A-3 Preferred Partner by means of: (i) an advertisement, article, notice, letter, circular or other communication published in any newspaper, magazine or similar medium or by other written communication or broadcast over television or radio; or (ii) a seminar or meeting held pursuant to public invitation or announcement; or (iii) any other form of general solicitation or advertising.

(c)    Such Series A-3 Preferred Partner, if an individual, is a citizen of the United States of America, and is at least 21 years of age.

(d)    If such Series A-3 Preferred Partner is an entity, (i) it is duly organized, validly existing and in good standing under all laws applicable to it and has full power and authority to acquire the Series A-3 Preferred Units, and (ii) those persons executing this Amendment on behalf of such Series A-3 Preferred Partner are duly authorized to act for and bind it.

(e)    Such Series A-3 Preferred Partner and its shareholders, members, partners or beneficiaries (if any) have adequate means of providing for their current needs and possible personal contingencies, have no need for liquidity in its investment in the Series A-3 Preferred Units, are able to bear the substantial economic risks of an investment in the Series A-3 Preferred Units for an indefinite period, and at the present time could afford a complete loss of the investment. Such Series A-3 Preferred Partner has such knowledge and experience in financial and business matters that it is capable of evaluating the merits and risks of this investment.

(f)    Such Series A-3 Preferred Partner recognizes that there is substantial economic risk associated with an investment in the Series A-3 Preferred Units, which could result in a complete loss of investment.

(g)    Such Series A-3 Preferred Partner understands, or has consulted with its tax advisors concerning, the tax consequences of an investment in the Series A-3 Preferred Units. Such Series A-3 Preferred Partner has not received or relied upon any representations, warranties or assurances of the Partnership, the General Partner, or any persons acting on their behalf concerning the tax aspects of an investment in the Series A-3 Preferred Units.

(h)    Such Series A-3 Preferred Partner understands that the Series A-3 Preferred Units have not been registered under the Securities Exchange Act of 1933, as amended (the “Securities Act”), or the securities laws of any state. Such Series A-3 Preferred Partner will not sell or otherwise transfer any the Series A-3 Preferred Units or shares of the General Partner’s common stock which for which they may be exchanged unless they are registered under the Securities Act and any applicable state securities laws, or pursuant to an exemption from such registration satisfactory to the General Partner. Such Series A-3 Preferred Partner is purchasing the Series A-3 Preferred Units and, upon their exchange, shares of the General Partner’s common stock, solely for its own account for investment only and not for the account of any other person and not for distribution, assignment or resale to others, and no other person has a direct or indirect beneficial interest in such Series A-3 Preferred Units or shares of common stock.

(i)    Such Series A-3 Preferred Partner understands that it may not be able to sell or dispose of the Series A-3 Preferred Units as there is no public market for them. Such Series A-3 Preferred Partner further understands that the terms of Section 9 of the Agreement restrict their sale or transfer.

3.    Sections 3.1, 3.2 and 3.9. Sections 3.1, 3.2 and 3.9 of the Agreement are hereby deleted in their entirety and replaced with the following:

“3.1    OP Units

The Partners’ interests in the Partnership are expressed in terms of OP Units and each Partner has been issued OP Units corresponding to the agreed value of its capital contribution. OP Units consist of Common OP Units, Mirror A Preferred Units, Preferred OP Units, Series A-1 Preferred Units, Series A-3 Preferred Units, Series B Preferred Units, Series B-1 Preferred Units, Series B-2 Preferred Units and Series B-3 Preferred Units.

The holders of the Common OP Units shall be entitled to receive distributions in accordance with Section 4.3, after payment of all accrued (i) Mirror A Priority Return, (ii) Preferred Dividends, (iii) Series A-1 Priority Return, (iv) Series A-3 Priority Return, (v) Series B Priority Return, (vi) Series B-1 Priority Return, (vii) Series B-2 Priority Return, and (viii) Series B-3 Priority Return. No distribution shall be made in respect of Common OP Units while any accrued (i) Mirror A Priority Return, (ii) Preferred Dividends, (iii) Series A-1 Priority Return, (iv) Series A-3 Priority Return, (v) Series B Priority Return, (vi) Series B-1 Priority Return, (vii) Series B-2 Priority Return, or (viii) Series B-3 Priority Return remains unpaid unless all such unpaid amounts are paid simultaneously with such distribution.”

No Partner shall be entitled to withdraw any portion of its capital account, except by way of distributions pursuant to Sections 4.3, 8.2, 16, 17, 18, 19 and 20 hereof.”

4.    Section 8.2(a) of the Agreement is hereby deleted in its entirety and replaced with the following:

“8.2    Liquidating Distributions; Restoration of Capital Account Deficits

Upon the liquidation of the Partnership or any Partner’s interest in the Partnership, within the meaning of the Treasury Regulations:

(a)    A final allocation of all items of income, gain, loss, and expense shall be made in accordance with Section 4.2 hereof, and, after payment or provision for payment of all debts, obligations and other liabilities of the Partnership to its creditors (including, without limitation, all sales commissions or other expenses incurred in liquidation), all remaining assets of the Partnership shall be distributed to the holders of OP Units as follows: (i) first, to the holders of Mirror A Preferred Units in proportions and amounts equal to the Issue Price of the Mirror A Preferred Units plus any accrued and unpaid Mirror A Priority Return thereon; (ii) second, to the holders of the Preferred OP Units and Series A-1 Preferred Units in proportions and amounts equal to the Issue Prices of their respective Preferred OP Units and Series A-1 Preferred Units, plus any accrued and unpaid Preferred Dividends and Series A-1 Priority Return, as the case may be, thereon; (iii) third, to the holders of the Series B Cumulative Preferred Units in proportions and amounts equal to the Issue Prices of their respective Series B Cumulative Preferred Units, plus accrued and unpaid Series B Priority Return, Series B-1 Priority Return, Series B-2 Priority Return and Series B-3 Priority Return, as applicable, thereon; (iv) fourth, to the holders of Series A-3 Preferred Units in proportions and amounts equal to the Issue Price of the Series A-3 Preferred Units plus any accrued and unpaid Series A-3 Priority Return thereon, and (v) finally (if any), to the Common OP Units.”

5.    Section 14. Section 14 of the Agreement is hereby amended as follows:

(a)    The second sentence of the definition of “OP Units” is hereby deleted in its entirety and replaced with the following: “OP Units consist of Common OP Units, Mirror A Preferred Units, Preferred OP Units, Series A-1 Preferred Units, A-3 Preferred Units, Series B Preferred Units, Series B-1 Preferred Units, Series B-2 Preferred Units and Series B-3 Preferred Units.”

(b)    The definition of “Common Stock Fair Market Value” set forth in Section 14 of the Agreement is hereby deleted in its entirety and replaced with the following:

“Common Stock Fair Market Value” shall mean, with respect to any Series A-1 Exchange Date or Series A-3 Exchange Date, the average closing price of a share of the General Partner’s common stock for the 10 consecutive trading days preceding such Series A-1 Exchange Date or Series A-3 Exchange Date on the principal national securities exchange on which the shares of the General Partner’s common stock are listed or admitted to trading or, if not listed or admitted to trading on any national securities exchange, the average of the reported bid and asked prices during such 10 trading day period in the over‑the‑counter market as furnished by the National Quotation Bureau, Inc., or, if such firm is not then engaged in the business of reporting such prices, as furnished by any member of the National Association of Securities Dealers, Inc. selected by the General Partner or, if the shares of Common Stock or securities are not publicly traded, the Common Stock Fair Market Value for such day shall be the fair market value thereof determined jointly by the General Partner and the holder(s) of Series A-1 Preferred Units or Series A-3 Preferred Units that are exchanging such Series A-1 Preferred Units or Series A-3 Preferred Units for shares of the General Partner’s common stock; provided, however, that if such parties are unable to reach agreement within a reasonable period of time, the Common Stock Fair Market Value shall be determined in good faith by an independent investment banking firm selected jointly by the General Partner and such holder(s) of Series A-1 Preferred Units or Series A-3 Preferred Units or, if that selection cannot be made within five days, by an independent investment banking firm selected by the American Arbitration Association in accordance with its rules.

(c)    The following new definitions are inserted in Section 14 (Definitions) so as to preserve alphabetical order:

“Series A-3 Exchange Date” shall mean the date specified in a Series A-3 Exchange Notice on which the holder of Series A-3 Preferred Units proposes to exchange Series A-3 Preferred Units for shares of the General Partner’s common stock; provided, however, that the proposed Series A-3 Exchange Date (i) must be a Business Day, and (ii) may not be less than three Business Days, nor more than more than 15 Business Days, after the date such Series A-3 Exchange Notice is delivered.

“Series A-3 Exchange Notice” shall mean a written notice delivered by a holder of Series A-3 Preferred Units to the General Partner of such holder’s election to exchange Series A-3 Preferred Units for shares of the General Partner’s common stock. Each Series A-3 Exchange Notice must specify the number of Series A-3 Preferred Units to be exchanged and the proposed Series A-3 Exchange Date.

“Series A-3 Issuance Date” shall mean February 8, 2013.

“Series A-3 Preferred Partners” shall mean the holders of Series A-3 Preferred Units set forth on Exhibit A hereto, as it may be amended from time to time, and their respective successors and permitted assigns.

“Series A-3 Preferred Units” shall have the meaning set forth therefor in Section 20.2 hereof.

“Series A-3 Priority Return” shall have the meaning set forth therefor in Section 20.1 hereof.

6.    The following new Section 20 of the Agreement is inserted in the Agreement after Section 19 thereof:

Section 20.1    Definitions. The term “Series A-3 Parity Preferred Units” shall mean any class or series of OP Units of the Partnership now or hereafter authorized, issued or outstanding and expressly designated by the Partnership to rank on parity with the Series A-3 Preferred Units with respect to distributions and rights upon voluntary or involuntary liquidation, winding-up or dissolution of the Partnership. The term “Series A-3 Priority Return” shall mean an amount equal to the Applicable Rate, multiplied by the stated amount of $100 per Series A-3 Preferred Unit (the “Issue Price”), multiplied by the number of outstanding Series A-3 Preferred Units, cumulative to the extent not distributed for any given distribution period pursuant to Section 4.3 hereof. The term “Applicable Rate” shall mean 4.50% per annum (determined on the basis of a 365 day year).

Section 20.2    Designation and Number. A series of OP Units in the Partnership designated as the “Series A-3 Preferred Units” is hereby established. The number of Series A-3 Preferred Units shall be 40,267.50.

Section 20.3     Distributions.

A.     Payment of Distributions. Subject to the preferential rights of holders of any class or series of OP Units of the Partnership ranking senior to the Series A-3 Preferred Units, the holders of Series A-3 Preferred Units will be entitled to receive, when, as and if declared by the Partnership acting through the General Partner, out of the Partnership’s available cash, cumulative preferential cash distributions in an amount equal to the Series A-3 Priority Return. All distributions shall be cumulative, shall accrue from the original date of issuance and will be payable quarterly (such quarterly periods for purposes of payment and accrual will be the quarterly periods ending on the dates specified in this sentence) in arrears on March 31, June 30, September 30 and December 31 of each year (each a “Series A-3 Preferred Unit Distribution Payment Date”). Any distribution payable on the Series A-3 Preferred Units for a period that is shorter or longer than

90 days will be computed on the basis of a 360-day year consisting of twelve 30-day months. If any Series A-3 Preferred Unit Distribution Payment Date is not a Business Day, then payment of the distribution to be made on such date will be made on the next succeeding day that is a Business Day (and without any interest or other payment in respect of any such delay). The distributions payable on any Series A-3 Preferred Unit Distribution Payment Date shall include distributions accrued to but not including such Series A-3 Preferred Unit Distribution Payment Date.

B.    Distributions Cumulative. Notwithstanding the foregoing, distributions on the Series A-3 Preferred Units will accrue and be cumulative from the Series A-3 Issuance Date, whether or not the terms and provisions set forth in Section 20.3 C at any time prohibit the current payment of distributions, whether or not the Partnership has earnings, whether or not there are funds legally available for the payment of such distributions and whether or not such distributions are authorized. No interest, or sum in lieu of interest, will be payable in respect of any distribution payment or payments on Series A-3 Preferred Units which may be in arrears, and the holders of the Series A-3 Preferred Units will not be entitled to any distributions, whether payable in cash, securities or other property, in excess of full cumulative distributions described above. Any distribution payment made on the Series A-3 Preferred Units will first be credited against the earliest accrued but unpaid distribution due with respect to the Series A-3 Preferred Units. No distributions on the Series A-3 Preferred Units shall be authorized, declared, paid or set apart for payment by the Partnership at such time as the terms and provisions of any agreement of the Partnership, including any agreement relating to its indebtedness, directly or indirectly prohibit authorization, declaration, payment or setting apart for payment or provide that such authorization, declaration, payment or setting apart for payment would constitute a breach thereof or a default thereunder, or if such declaration, payment or setting apart for payment shall be restricted or prohibited by law.

C.    Priority as to Distributions.

(i)    Except as provided in Section 20.3 C (ii) below, unless full cumulative distributions for all past Series A-3 Preferred Unit Distribution Periods on the Series A-3 Preferred Units have been or contemporaneously are authorized and paid or authorized and a sum sufficient for the payment thereof is set apart for such payment, no distributions (other than in Common OP Units or any other class or series of OP Units ranking junior to the Series A-3 Preferred Units as to distributions and as to the distribution of assets upon liquidation, dissolution and winding up of the Partnership) shall be authorized or paid or set aside for payment nor shall any other distribution be authorized or made on Common OP Units or any other classes or series of OP Units ranking junior to or on parity with the Series A-3 Preferred Units as to distributions or as to the distribution of assets upon liquidation, dissolution or winding up of the Partnership nor shall any Common OP Units or any other classes or series of OP Units ranking junior to or on parity with the Series A-3 Preferred Units as to distributions or as to the distribution of assets upon liquidation, dissolution or winding up of the Partnership be redeemed, purchased or otherwise acquired for any consideration (or any amounts be paid to or made available for a sinking fund for the redemption of any such units) by the Partnership except: (1) by conversion into or exchange for Common OP Units or any other classes or series of OP Units ranking junior to the Series A-3 Preferred Units as to distributions and as to the distribution of assets upon liquidation, dissolution and winding up of the Partnership, (2) by redemption, purchase or other acquisition of Common OP Units made for purposes of an incentive, benefit or share purchase plan for the General Partner, the Partnership or any of their respective subsidiaries, (3) for redemptions, purchases or other acquisitions of OP Units by the Partnership in connection with the General Partner’s purchase of its securities for the purpose of preserving the General Partner’s qualification as a real estate investment trust for federal income tax purposes, or (4) for any distributions by the Partnership corresponding to distributions by the General Partner required for it to maintain its status as a real estate investment trust for federal income tax purposes. With respect to the Series A-3 Preferred Units, all references in this Article 20 to “past Series A-3 A Preferred Unit Distribution

Periods” shall mean, as of any date, Series A-3 Preferred Unit Distribution Periods ending on or prior to such date, and with respect to any other class or series of OP Units ranking on a parity as to distributions with the Series A-3 Preferred Units, all references in this Article 20 to “past distribution periods” (and all similar references) shall mean, as of any date, distribution periods with respect to such other class or series of OP Units ending on or prior to such date.

(ii)    When full cumulative distributions for all past Series A-3 Preferred Unit Distribution Periods are not paid in full (or a sum sufficient for such full payment is not set apart) upon the Series A-3 Preferred Units and when full cumulative distributions for all past distribution periods are not paid in full (or a sum sufficient for such full payment is not set apart) upon the units of any other Series A-3 Parity Preferred Units ranking on a parity as to distributions with the Series A-3 Preferred Units, then all distributions authorized on the Series A-3 Preferred Units and any other outstanding classes or series of Series A-3 Parity Preferred Units ranking on a parity as to distributions with the Series A-3 Preferred Units shall be declared pro rata so that the amount of distributions authorized per unit on the Series A-3 Preferred Units and such other classes or series of Series A-3 Parity Preferred Units ranking on a parity as to distributions with the Series A-3 Preferred Units shall in all cases bear to each other the same ratio that accumulated and unpaid distributions per unit on the Series A-3 Preferred Units and such other classes or series of Series A-3 Parity Preferred Units ranking on a parity as to distributions with the Series A-3 Preferred Units (which, in the case of any such other classes or series of Series A-3 Parity Preferred Units ranking on a parity as to distributions with the Series A-3 Preferred Units, shall not include any accumulation in respect of unpaid distributions for past distribution periods if such other Series A-3 Parity Preferred Units ranking on a parity as to distributions with the Series A-3 Preferred Units does not have a cumulative distribution) bear to each other.

Section 20.4      Liquidation Proceeds.

A.    Distributions. Upon any voluntary or involuntary liquidation, dissolution or winding-up of the Partnership, before any payment or distribution of the assets of the Partnership (whether capital or surplus) shall be made to or set apart for the holders of Common OP Units or any other classes or series of OP Units ranking junior to the Series A-3 Preferred Units as to distributions or as to the distribution of assets upon liquidation, dissolution or winding up of the Partnership, the holders of Series A-3 Preferred Units shall be entitled to receive the amount of the Issue Price of the Series A-3 Preferred Units plus accrued and unpaid Series A-3 Priority Return thereon (whether or not authorized or declared) to the date of payment in accordance with Article 8. If, upon any liquidation, dissolution or winding up of the Partnership, the assets of the Partnership, or proceeds thereof, distributable among the holders of Series A-3 Preferred Units shall be insufficient to pay the full preferential amount set forth in Article 8 and liquidating payments on any Series A-3 Parity Preferred Units, as to the distribution of assets on any liquidation, dissolution or winding up of the Partnership, then such assets, or the proceeds thereof, shall be distributed among the holders of Series A-3 Preferred Units and any such other Series A-3 Parity Preferred Units ratably in accordance with the respective amounts that would be payable on such Series A-3 Preferred Units and any such Series A-3 Parity Preferred Units if all amounts payable thereon were paid in full.

B.    Notice. Written notice of any voluntary or involuntary liquidation, dissolution or winding-up of the Partnership, stating the payment date or dates when, and the place or places where, the amounts distributable in such circumstances shall be payable, shall be given by (i) fax and (ii) by first class mail, postage pre-paid, not less than thirty (30) and not more than sixty (60) days prior to the payment date stated therein, to each record holder of the Series A-3 Preferred Units at the respective addresses of such holders as the same shall appear on the transfer records of the Partnership.

C.    No Further Rights. After payment of the full amount of the liquidating distributions to which it is entitled, the holders of Series A-3 Preferred Units will have no right or claim to any of the remaining assets of the Partnership.

D.    Consolidation, Merger or Certain Other Transactions. The voluntary sale, conveyance, lease, exchange or transfer (for cash, shares of stock, securities or other consideration) of all or substantially all of the property or assets of the Partnership to, or the consolidation or merger or other business combination of the Partnership with or into, any corporation, trust or other entity (or of any corporation, trust or other entity with or into the Partnership) shall not be deemed to constitute a liquidation, dissolution or winding-up of the Partnership.

    The Series A-3 Preferred Units rank, with respect to rights to the payment of distributions and the distribution of assets in the event of any voluntary or involuntary liquidation, dissolution or winding up of the Partnership, (i) senior to all Common OP Units and all other OP Units other than OP Units referred to in clauses (ii) and (iii) of this sentence; (ii) on a parity with all Series A-3 Parity Preferred Units and (iii) junior to all Mirror A Preferred Units, Preferred OP Units, Series A-1 Preferred Units, Series B Preferred Units, Series B-1 Preferred Units, Series B-2 Preferred Units, Series B-3 Preferred Units and all other OP Units (now existing or hereafter arising) the terms of which specifically provide that such OP Units rank senior to the Series A-3 Preferred Units with respect to rights to the payment of distributions and the distribution of assets in the event of any liquidation, dissolution and winding up of the Partnership.

Sun Communities, Inc., a Maryland corporation    

By:/s/ Jonathan M. Colman                            Jonathan M. Colman, Executive Vice President