SUN COMMUNITIES INC
8-K, 1999-10-15
REAL ESTATE INVESTMENT TRUSTS
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<PAGE>   1
                       SECURITIES AND EXCHANGE COMMISSION
                             Washington, D.C. 20549



                                    FORM 8-K
                                 CURRENT REPORT

     Pursuant to Section 13 or 15(d) of the Securities Exchange Act of 1934




                       DATE OF REPORT: SEPTEMBER 29, 1999
                        (Date of earliest event reported)




                              SUN COMMUNITIES, INC.
             (Exact name of registrant as specified in its charter)




MARYLAND                  COMMISSION FILE NO. 1-12616                 38-2730780
(State of Organization)                                  (IRS Employer I.D. No.)



                              31700 MIDDLEBELT ROAD
                                    SUITE 145
                        FARMINGTON HILLS, MICHIGAN 48334
                    (Address of principal executive offices)



                                 (248) 932-3100
              (Registrant's telephone number, including area code)




<PAGE>   2



ITEM 5.  OTHER EVENTS.

                  On September 29, 1999, Sun Communities, Inc., a Maryland
corporation (the "Company"), Sun Communities Operating Limited Partnership, a
Michigan limited partnership (the "Partnership"), Belcrest Realty Corporation, a
Delaware corporation ("Belcrest"), and Belair Real Estate Corporation, a
Delaware corporation (together with Belcrest, the "Contributors"), entered into
a Contribution Agreement (a copy of which is filed as an exhibit to this Form
8-K), pursuant to which, among other things, the Contributors contributed an
aggregate of $50 million to the Partnership in return for an aggregate of
2,000,000 9.125% Series A Cumulative Redeemable Perpetual Preferred Units in the
Partnership (the "Series A Preferred Units"). The rights, limitations and
preferences of the Series A Preferred Units are set forth in the One Hundred
Third Amendment to the Second Amended and Restated Limited Partnership Agreement
of the Partnership, dated as of September 29, 1999 (the "Amendment") , a copy of
which is filed as an exhibit to this Form 8-K.

                  The Series A Preferred Units will be exchangeable, in whole
but not in part, at any time on or after September 29, 2009 at the option of the
holders thereof for 9.125% Series A Cumulative Redeemable Preferred Stock of the
Company (the "Series A Preferred Stock") at an exchange rate of one share of
Series A Preferred Stock for one Series A Preferred Unit, subject to adjustment
as set forth in the Amendment, and at certain earlier times pursuant to the
terms of the Amendment. The rights, limitations and preferences of the Series A
Preferred Stock are set forth in that certain Articles Supplementary to the
Charter of the Company, dated as of September 29, 1999, a copy of which is filed
as an exhibit to this Form 8-K. The Company has granted certain registration
rights to the Contributors with respect to the Series A Preferred Stock pursuant
to a Registration Rights Agreement, dated as of September 29, 1999, among the
Company and the Contributors, a copy of which is filed as an exhibit to this
Form 8-K.

ITEM 7.           FINANCIAL STATEMENTS AND EXHIBITS.

         (c)      Exhibits

                  4.1      Articles Supplementary to the Company's Charter,
                           dated as of September 29, 1999

                  99.1     Contribution Agreement, dated as of September 29,
                           1999, by and among the Company, the Partnership and
                           the Contributors

                  99.2     One Hundred Third Amendment to the Second Amended and
                           Restated Limited Partnership Agreement of the
                           Partnership

                  99.3     Registration Rights Agreement, dated as of September
                           29, 1999, by and among the Company and the
                           Contributors.




                                     - 2 -
<PAGE>   3


                                   SIGNATURES

         Pursuant to the requirements of the Securities Exchange Act of 1934,
the registrant has duly caused this report to be signed on its behalf by the
undersigned hereunto duly authorized.



Dated:  October 14, 1999         SUN COMMUNITIES, INC., a Maryland corporation

                                 By: /s/ Jeffrey P. Jorissen
                                     -------------------------------------------
                                     Jeffrey P. Jorissen, Senior Vice President,
                                     Treasurer, Chief Financial Officer, and
                                     Secretary












                                     - 3 -

<PAGE>   4


                              SUN COMMUNITIES, INC.
                                  EXHIBIT INDEX



Exhibit
- -------


4.1      Articles Supplementary to the Company's Charter, dated as of September
         29, 1999

99.1     Contribution Agreement, dated as of September 29, 1999, by and among
         the Company, the Partnership and the Contributors

99.2     One Hundred Third Amendment to the Second Amended and Restated Limited
         Partnership Agreement of the Partnership

99.3     Registration Rights Agreement, dated as of September 29, 1999, by and
         among the Company and the Contributors.








                                     - 4 -

<PAGE>   1
                                                                     EXHIBIT 4.1



                              SUN COMMUNITIES, INC.

                             ARTICLES SUPPLEMENTARY



         SUN COMMUNITIES, INC., a Maryland corporation (the "COMPANY"), hereby
certifies to the State Department of Assessments and Taxation of Maryland (the
"DEPARTMENT") that:


                  FIRST: Pursuant to the authority expressly vested in the Board
         of Directors of the Company by Article V of the Charter of the Company
         and Sections 2-105 and 2-208 of the Maryland General Corporation Law
         (the "MGCL"), the Board of Directors of the Company (the "BOARD OF
         DIRECTORS"), by resolutions duly adopted as of September 23, 1999, has
         classified 2,000,000 shares of the authorized but unissued shares of
         the preferred stock par value $.01 per share ("PREFERRED STOCK") of the
         Company as a separate class of Preferred Stock, such class being
         designated the "9.125% Series A Cumulative Redeemable Perpetual
         Preferred Stock."

                  SECOND: The class of Preferred Stock of the Company created by
         the resolutions duly adopted by the Board of Directors of the Company
         and referred to in Article FIRST of these Articles Supplementary shall
         have the following designation, number of shares, preferences,
         conversion and other rights, voting powers, restrictions, limitation as
         to dividends and other distributions, qualifications, terms and
         conditions of redemption and other terms and conditions:

                           SECTION 1. DESIGNATION AND NUMBER. The shares of
                  Preferred Stock hereby classified shall be designated the
                  "9.125% Series A Cumulative Redeemable Perpetual Preferred
                  Stock" (the "SERIES A PREFERRED STOCK"). The number of shares
                  of Series A Preferred Stock shall be 2,000,000.

                           SECTION 2. RANK. The Series A Preferred Stock will,
                  with respect to distributions and rights upon voluntary or
                  involuntary liquidation, winding-up or dissolution of the
                  Company, rank senior to all classes or series of Common Stock
                  (as defined in the Charter) and to all classes or series of
                  equity securities of the Company now or hereafter authorized,
                  issued or outstanding, other than any class or series of
                  equity securities of the Company expressly designated as
                  ranking on a parity with or senior to the Series A Preferred
                  Stock as to distributions and rights upon voluntary or
                  involuntary liquidation, winding-up or dissolution of the
                  Company. For purposes of these Articles Supplementary, the
                  term "PARITY



<PAGE>   2



                  PREFERRED STOCK" shall be used to refer to any class or series
                  of equity securities of the Company now or hereafter
                  authorized, issued or outstanding expressly designated by the
                  Company to rank on a parity with Series A Preferred Stock with
                  respect to distributions and rights upon voluntary or
                  involuntary liquidation, winding-up or dissolution of the
                  Company. The term "equity securities" does not include debt
                  securities, which will rank senior to the Series A Preferred
                  Stock.

                           SECTION 3.   DISTRIBUTIONS.

                           (a)      Payment of Distributions.

                                    (i) Subject to the rights of holders of
                           Parity Preferred Stock as to the payment of
                           distributions and holders of equity securities
                           ranking senior to the Series A Preferred Stock as to
                           payment of distributions, holders of Series A
                           Preferred Stock will be entitled to receive, when, as
                           and if declared by the Company, out of funds legally
                           available for the payment of distributions,
                           cumulative preferential cash distributions at the
                           rate per annum of 9.125% of the $25.00 liquidation
                           preference per share of Series A Preferred Stock (the
                           "ISSUANCE RATE").

                                  (ii)  In the event that on or prior to
                           December 31, 1999 the senior unsecured debt of Sun
                           Communities Operating Limited Partnership shall have
                           either an unconditional, published (A) rating by
                           Standard & Poor's Ratings Group ("STANDARD & POOR'S")
                           exceeding "BBB" or (B) rating by Moody's Investors
                           Service, Inc. ("MOODY'S") exceeding "Baa3", then,
                           beginning on the date on which either of such
                           foregoing conditions is met, the rate per annum of
                           the cumulative preferential cash distributions on the
                           Series A Preferred Stock shall be 8.875% (the
                           "REVISED RATE") of the $25.00 liquidation preference
                           per share of Series A Preferred Stock, in which case
                           the designation of the Series A Preferred Stock will
                           change accordingly to reflect such new distribution
                           rate; provided, that, if either (i) such Standard &
                           Poor's unconditional published rating exceeding "BBB"
                           or (ii) such Moody's rating exceeding "Baa3" shall
                           not be in effect on December 31, 1999, then the
                           Revised Rate herein provided shall be void ab initio
                           and the Company shall pay on December 31, 1999, in
                           addition to the dividend then due to the holders of
                           the Series A Preferred Stock, the difference between
                           (1) the dividend that would have accrued at the
                           Issuance Rate during the current and any prior
                           quarterly distribution period and (2) the dividend
                           that actually accrued during such distribution
                           periods at the voided Revised Rate.

                                  (iii) Promptly after December 31, 1999 the
                           parties hereto shall execute, acknowledge and
                           deliver, or cause to be executed, acknowledged

                                        2

<PAGE>   3



                           and delivered, all instruments and documents as may
                           be reasonably necessary or desirable to memorialize
                           the revision of the distribution rate in effect from
                           and after December 31, 1999 in accordance with
                           Section 3(a)(ii) above.

                                    (iv) All distributions shall be cumulative,
                           shall accrue from the original date of issuance and
                           shall be payable (i) 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, commencing
                           on the first of such dates to occur after the
                           original date of issuance and, (ii) in the event of a
                           redemption, on the redemption date (each a "PREFERRED
                           STOCK DISTRIBUTION PAYMENT DATE"). The amount of the
                           distribution payable for any period will be computed
                           on the basis of a 360-day year of twelve 30-day
                           months and for any period shorter than a full
                           quarterly period for which distributions are
                           computed, the amount of the distribution payable will
                           be computed based on the ratio of the actual number
                           of days elapsed in such quarterly period to ninety
                           (90) days. If any date on which distributions are to
                           be made on the Series A Preferred Stock is not a
                           Business Day (as defined herein), 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) except that, if such Business Day is
                           in the next succeeding calendar year, such payment
                           shall be made on the immediately preceding Business
                           Day, in each case with the same force and effect as
                           if made on such date. Distributions on the Series A
                           Preferred Stock will be made to the holders of record
                           of the Series A Preferred Stock on the relevant
                           record dates, which, unless otherwise provided by the
                           Company with respect to any distribution, will be
                           fifteen (15) Business Days prior to the relevant
                           Preferred Stock Distribution Payment Date (each a
                           "DISTRIBUTION RECORD DATE"). Notwithstanding anything
                           to the contrary set forth herein, each share of
                           Series A Preferred Stock shall also continue to
                           accrue all accrued and unpaid distributions up to the
                           exchange date on any Series A Preference Unit (as
                           defined in the Second Amended and Restated Limited
                           Partnership Agreement of Sun Communities Operating
                           Limited Partnership, dated as of April 30, 1996, as
                           amended by (i) those certain amendments numbered one
                           through one hundred two, and (ii) the One Hundred
                           Third Amendment to the Agreement of Limited
                           Partnership, dated as of September 29, 1999, and as
                           may be further amended from time to time
                           (collectively, as amended, the "PARTNERSHIP
                           AGREEMENT") validly exchanged into such share of
                           Series A Preferred Stock in accordance with the
                           provisions of such Partnership Agreement.



                                        3

<PAGE>   4



                               (v) The term "BUSINESS DAY" shall mean each
                           day, other than a Saturday or a Sunday, which is not
                           a day on which banking institutions in New York, New
                           York are authorized or required by law, regulation or
                           executive order to close.

                           (b) Limitations on Distributions. No distributions on
                  the Series A Preferred Stock shall be declared or paid or set
                  apart for payment by the Company at such time as the terms and
                  provisions of any agreement of the Company, including any
                  agreement relating to its indebtedness, prohibits such
                  declaration, payment or setting apart for payment or provides
                  that such 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) Distributions Cumulative. Notwithstanding the
                  foregoing, distributions on the Series A Preferred Stock will
                  accrue whether or not declared, whether or not the terms and
                  provisions set forth in SECTION 3(B) hereof at any time
                  prohibit the current payment of distributions, whether or not
                  the Company has earnings, whether or not there are funds
                  legally available for the payment of such distributions and
                  whether or not such distributions are authorized or declared.
                  Accrued but unpaid distributions on the Series A Preferred
                  Stock will accumulate as of the Preferred Stock Distribution
                  Payment Date on which they first become payable. Accumulated
                  and unpaid distributions will not bear interest.

                           (d) Priority as to Distributions.

                               (i) So long as any Series A Preferred Stock
                           is outstanding, no distribution of cash or other
                           property shall be authorized, declared, paid or set
                           apart for payment on or with respect to any class or
                           series of Common Stock or any class or series of
                           equity securities of the Company ranking junior to
                           the Series A Preferred Stock as to distributions or
                           rights upon voluntary or involuntary dissolution,
                           liquidation or winding up of the Company to the
                           Series A Preferred Stock (such Common Stock or other
                           junior equity securities, collectively, "JUNIOR
                           STOCK"), nor shall any cash or other property be set
                           aside for or applied to the purchase, redemption or
                           other acquisition for consideration of any Series A
                           Preferred Stock, any Parity Preferred Stock or any
                           Junior Stock, unless, in each case, all distributions
                           accumulated on all Series A Preferred Stock and all
                           classes and series of outstanding Parity Preferred
                           Stock have been paid in full. The foregoing sentence
                           will not prohibit (i) distributions payable solely in
                           equity securities ranking junior to the Series A
                           Preferred Stock as to distributions and rights upon
                           voluntary or involuntary dissolution,


                                        4
<PAGE>   5



                           liquidation or winding up of the Company, (ii) the
                           conversion of Junior Stock or Parity Preferred Stock
                           into equity securities of the Company ranking junior
                           to the Series A Preferred Stock as to distributions
                           and rights upon voluntary or involuntary dissolution,
                           liquidation or winding-up of the Company, and (iii)
                           purchase by the Company of such Series A Preferred
                           Stock, Parity Preferred Stock or Junior Stock
                           pursuant to Article VII (Restriction on Transfer,
                           Acquisition and Redemption of Shares) of the Charter
                           to the extent required to preserve the Company's
                           status as a real estate investment trust.

                                (ii) So long as distributions have not been
                           paid in full (or a sum sufficient for such full
                           payment is not irrevocably deposited in trust for
                           immediate payment) upon the Series A Preferred Stock,
                           all distributions authorized and declared on the
                           Series A Preferred Stock and all classes or series of
                           outstanding Parity Preferred Stock shall be
                           authorized and declared so that the amount of
                           distributions authorized and declared per share of
                           Series A Preferred Stock and such other classes or
                           series of Parity Preferred Stock shall in all cases
                           bear to each other the same ratio that accrued
                           distributions per share on the Series A Preferred
                           Stock and such other classes or series of Parity
                           Preferred Stock (which shall not include any
                           accumulation in respect of unpaid distributions for
                           prior distribution periods if such class or series of
                           Parity Preferred Stock does not have cumulative
                           distribution rights) bear to each other.

                           (e) No Further Rights. Holders of Series A Preferred
                  Stock shall not be entitled to any distributions, whether
                  payable in cash, other property or otherwise, in excess of the
                  full cumulative distributions described herein.

                           SECTION 4.  LIQUIDATION PREFERENCE.

                           (a)  Payment of Liquidating Distributions. Subject to
                  the rights of holders of Parity Preferred Stock with respect
                  to rights upon any voluntary or involuntary liquidation,
                  dissolution or winding-up of the Company and subject to equity
                  securities ranking senior to the Series A Preferred Stock with
                  respect to rights upon any voluntary or involuntary
                  liquidation, dissolution or winding-up of the Company, the
                  holders of Series A Preferred Stock shall be entitled to
                  receive out of the assets of the Company legally available for
                  distribution or the proceeds thereof, after payment or
                  provision for debts and other liabilities of the Company, but
                  before any payment or distributions of the assets shall be
                  made to holders of Common Stock or any other class or series
                  of equity securities of the Company that ranks junior to the
                  Series A Preferred Stock as to rights upon liquidation,
                  dissolution or winding-up of the Company, an amount equal to
                  the sum of (i) a liquidation preference of $25.00 per share of
                  Series A Preferred Stock, and (ii) an


                                        5

<PAGE>   6



                  amount equal to any accumulated and unpaid distributions
                  thereon, whether or not declared, to the date of payment. In
                  the event that, upon such voluntary or involuntary
                  liquidation, dissolution or winding-up, there are insufficient
                  assets to permit full payment of liquidating distributions to
                  the holders of Series A Preferred Stock and any Parity
                  Preferred Stock, all payments of liquidating distributions on
                  the Series A Preferred Stock and such Parity Preferred Stock
                  shall be made so that the payments on the Series A Preferred
                  Stock and such Parity Preferred Stock shall in all cases bear
                  to each other the same ratio that the respective rights of the
                  Series A Preferred Stock and such other Parity Preferred Stock
                  (which shall not include any accumulation in respect of unpaid
                  distributions for prior distribution periods if such Parity
                  Preferred Stock does not have cumulative distribution rights)
                  upon liquidation, dissolution or winding-up of the Company
                  bear to each other.

                           (b) Notice. Written notice of any such voluntary or
                  involuntary liquidation, dissolution or winding-up of the
                  Company, 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 Preferred Stock at the respective addresses of such
                  holders as the same shall appear on the share transfer records
                  of the Company.

                           (c) No Further Rights. After payment of the full
                  amount of the liquidating distributions to which they are
                  entitled, the holders of Series A Preferred Stock will have no
                  right or claim to any of the remaining assets of the Company.

                           (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 Company to, or the consolidation or merger or
                  other business combination of the Company with or into any
                  corporation, trust or other entity (or of any corporation,
                  trust or other entity with or into the Company) shall not be
                  deemed to constitute a liquidation, dissolution or winding-up
                  of the Company.

                           (e) Permissible Distributions. In determining whether
                  a distribution (other than upon voluntary or involuntary
                  liquidation) by dividend, redemption, or other acquisition of
                  shares of stock of the Company or otherwise is permitted under
                  the MGCL, no effect shall be given to amounts that would be
                  needed, if the Company were to be dissolved at the time of the
                  distribution, to satisfy the preferential rights upon
                  dissolution of holders of shares of stock of the Company
                  whose preferential rights upon dissolution are superior to
                  those receiving the

                                       6
<PAGE>   7




                  distribution.

                           SECTION 5.  OPTIONAL REDEMPTION.

                           (a) Right of Optional Redemption. The Series A
                  Preferred Stock may not be redeemed prior to September 29,
                  2004. On or after such date, the Company shall have the right
                  to redeem the Series A Preferred Stock, in whole or in part,
                  at any time or from time to time, upon not less than thirty
                  (30) nor more than sixty (60) days written notice, at a
                  redemption price, payable in cash, equal to $25.00 per share
                  of Series A Preferred Stock plus accumulated and unpaid
                  distributions, whether or not declared, to the date of
                  redemption. If fewer than all of the outstanding shares of
                  Series A Preferred Stock are to be redeemed, the shares of
                  Series A Preferred Stock to be redeemed shall be selected pro
                  rata (as nearly as practicable without creating fractional
                  units).

                           (b)      Limitation on Redemption.

                                       (i) The redemption price of the Series A
                           Preferred Stock (other than the portion thereof
                           consisting of accumulated but unpaid distributions)
                           will be payable solely out of the sale proceeds of
                           capital stock of the Company and from no other
                           source. For purposes of the preceding sentence,
                           "capital stock" means any equity securities
                           (including Common Stock and Preferred Stock), shares,
                           participation or other ownership interests (however
                           designated) and any rights (other than debt
                           securities convertible into or exchangeable for
                           equity securities) or options to purchase any of the
                           foregoing.

                                      (ii) The Company may not redeem fewer than
                           all of the outstanding shares of Series A Preferred
                           Stock unless all accumulated and unpaid distributions
                           have been paid on all outstanding Series A Preferred
                           Stock for all quarterly distribution periods
                           terminating on or prior to the date of redemption.

                           (c)      Procedures for Redemption.

                                    (i) Notice of redemption will be (i) faxed,
                           and (ii) mailed by the Company, postage prepaid, not
                           less than thirty (30) nor more than sixty (60) days
                           prior to the redemption date, addressed to the
                           respective holders of record of the Series A
                           Preferred Stock to be redeemed at their respective
                           addresses as they appear on the share transfer
                           records of the Company. No failure to give or defect
                           in such notice shall affect the validity of the
                           proceedings for the redemption of any Series A
                           Preferred Stock except as to the holder to whom
                           such notice was defective or not


                                        7

<PAGE>   8

                           given. In addition to any information required by
                           law or by the applicable rules of any exchange upon
                           which the Series A Preferred Stock may be listed or
                           admitted to trading, each such notice shall state:
                           (i) the redemption date, (ii) the redemption price,
                           (iii) the number of shares of Series A Preferred
                           Stock to be redeemed, (iv) the place or places where
                           such shares of Series A Preferred Stock are to be
                           surrendered for payment of the redemption price, (v)
                           that distributions on the Series A Preferred Stock to
                           be redeemed will cease to accumulate on such
                           redemption date and (vi) that payment of the
                           redemption price and any accumulated and unpaid
                           distributions will be made upon presentation and
                           surrender of such Series A Preferred Stock. If fewer
                           than all of the shares of Series A Preferred Stock
                           held by any holder are to be redeemed, the notice
                           mailed to such holder shall also specify the number
                           of shares of Series A Preferred Stock held by such
                           holder to be redeemed.

                                    (ii) If the Company gives a notice of
                           redemption in respect of Series A Preferred Stock
                           (which notice will be irrevocable) then, by 12:00
                           noon, New York City time, on the redemption date, the
                           Company will deposit irrevocably in trust for the
                           benefit of the Series A Preferred Stock being
                           redeemed funds sufficient to pay the applicable
                           redemption price, plus any accumulated and unpaid
                           distributions, if any, on such shares to the date
                           fixed for redemption, without interest, and will give
                           irrevocable instructions and authority to pay such
                           redemption price and any accumulated and unpaid
                           distributions, whether or not declared, if any, on
                           such shares to the holders of the Series A Preferred
                           Stock upon surrender of the Series A Preferred Stock
                           by such holders at the place designated in the notice
                           of redemption. If fewer than all Series A Preferred
                           Stock evidenced by any certificate is being redeemed,
                           a new certificate shall be issued upon surrender of
                           the certificate evidencing all Series A Preferred
                           Stock, evidencing the unredeemed Series A Preferred
                           Stock without cost to the holder thereof. On and
                           after the date of redemption, distributions will
                           cease to accumulate on the Series A Preferred Stock
                           or portions thereof called for redemption, unless the
                           Company defaults in the payment thereof. If any date
                           fixed for redemption of Series A Preferred Stock is
                           not a Business Day, then payment of the redemption
                           price payable 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) except that, if such Business Day falls in the
                           next calendar year, such payment will be made on the
                           immediately preceding Business Day, in each case with
                           the same force and effect as if made on such date
                           fixed for redemption. If payment of the redemption
                           price or any accumulated or unpaid distributions in
                           respect of the Series A Preferred Stock is
                           improperly withheld or refused and not paid by the
                           Company,

                                        8

<PAGE>   9


                           distributions on such Series A Preferred Stock
                           will continue to accumulate from the original
                           redemption date to the date of payment, in which case
                           the actual payment date will be considered the date
                           fixed for redemption for purposes of calculating the
                           applicable redemption price and any accumulated and
                           unpaid distributions.

                           (d) Status of Redeemed Stock. Any Series A Preferred
                  Stock that shall at any time have been redeemed shall after
                  such redemption, have the status of authorized but unissued
                  Preferred Stock, without designation as to class or series
                  until such shares are once more designated as part of a
                  particular class or series by the Board of Directors.

                           SECTION 6.   VOTING RIGHTS.

                           (a) General. Holders of the Series A Preferred Stock
                  will not have any voting rights, except as set forth below.

                           (b)  Right to Elect Directors.

                                (i)  If at any time full distributions shall
                           not have been timely made on any Series A Preferred
                           Stock with respect to any six (6) prior quarterly
                           distribution periods, whether or not consecutive (a
                           "PREFERRED DISTRIBUTION DEFAULT"), the holders of
                           such Series A Preferred Stock, voting together as a
                           single class with the holders of each class or series
                           of Parity Preferred Stock upon which like voting
                           rights have been conferred and are exercisable
                           (collectively, the "PARITY SECURITIES"), will have
                           the right to elect two additional directors (and the
                           number of directors of the Company shall be deemed to
                           have increased by two (2)) to serve on the Company's
                           Board of Directors (the "PREFERRED STOCK DIRECTORS")
                           at a special meeting called by the holders of the
                           outstanding shares of Series A Preferred Stock in
                           accordance with Section 6(b)(ii) or at the next
                           annual meeting of stockholders, and at each
                           subsequent annual meeting of stockholders or special
                           meeting held in place thereof, until all such
                           distributions in arrears and distributions for the
                           current quarterly period on the Series A Preferred
                           Stock and each such class or series of Parity
                           Preferred Stock have been paid in full.

                                (ii) At any time when such voting rights
                           shall have vested, a proper officer of the Company
                           shall call or cause to be called, upon written
                           request of holders of record of at least 10% of the
                           outstanding shares of Series A Preferred Stock, a
                           special meeting of the holders of Series A Preferred
                           Stock and all the series of Parity Securities by
                           mailing or causing to be mailed to such holders a
                           notice of such special meeting to be


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<PAGE>   10




                           held not less than ten and not more than 45 days
                           after the date such notice is given. The
                           record date for determining holders of the Parity
                           Securities entitled to notice of and to vote at such
                           special meeting will be the close of business on the
                           third Business Day preceding the day on which such
                           notice is mailed. At any such special meeting, all of
                           the holders of the Parity Securities, by plurality
                           vote, voting together as a single class without
                           regard to series will be entitled to elect two
                           directors on the basis of one vote per $25.00 of
                           liquidation preference to which such Parity
                           Securities are entitled by their terms (excluding
                           amounts in respect of accumulated and unpaid
                           dividends) and not cumulatively. The holder or
                           holders of one-third of the Parity Securities then
                           outstanding, present in person or by proxy, will
                           constitute a quorum for the election of the Preferred
                           Stock Directors except as otherwise provided by law.
                           Notice of all meetings at which holders of the Series
                           A Preferred Stock shall be entitled to vote will be
                           given to such holders at their addresses as they
                           appear in the share transfer records of the Company.
                           At any such meeting or adjournment thereof in the
                           absence of a quorum, subject to the provisions of any
                           applicable law, a majority of the holders of the
                           Parity Securities present in person or by proxy shall
                           have the power to adjourn the meeting for the
                           election of the Preferred Stock Directors, without
                           notice other than an announcement at the meeting,
                           until a quorum is present. If a Preferred
                           Distribution Default shall terminate after the notice
                           of a special meeting has been given but before such
                           special meeting has been held, the Company shall, as
                           soon as practicable after such termination, mail or
                           cause to be mailed notice of such termination to
                           holders of the Series A Preferred Stock that would
                           have been entitled to vote at such special meeting.

                                    (iii) If and when all accumulated
                           distributions and the distribution for the current
                           distribution period on the Series A Preferred Stock
                           shall have been paid in full or a sum sufficient for
                           such payment is irrevocably deposited in trust for
                           payment, the holders of the Series A Preferred Stock
                           shall be divested of the voting rights set forth in
                           SECTION 6(B) herein (subject to revesting in the
                           event of each and every Preferred Distribution
                           Default) and, if all distributions in arrears and the
                           distributions for the current distribution period
                           have been paid in full or set aside for payment in
                           full on all other classes or series of Parity
                           Preferred Stock upon which like voting rights have
                           been conferred and are exercisable, the term and
                           office of each Preferred Stock Director so elected
                           shall terminate. Any Preferred Stock Director may be
                           removed at any time with or without cause by the vote
                           of, and shall not be removed otherwise than by the
                           vote of, the holders of record of a majority of the
                           outstanding Series A Preferred Stock when they have
                           the voting rights set


                                       10

<PAGE>   11



                           forth in SECTION 6(B) (voting separately as a single
                           class with all other classes or series of Parity
                           Preferred Stock upon which like voting rights have
                           been conferred and are exercisable). So long as a
                           Preferred Distribution Default shall continue, any
                           vacancy in the office of a Preferred Stock Director
                           may be filled by written consent of the Preferred
                           Stock Director remaining in office or by a vote of
                           the holders of record of a majority of the
                           outstanding Series A Preferred Stock when they have
                           the voting rights set forth in SECTION 6(B) (voting
                           separately as a single class with all other classes
                           or series of Parity Preferred Stock upon which like
                           voting rights have been conferred and are
                           exercisable). The Preferred Stock Director shall each
                           be entitled to one vote per director on any matter.

                           (c) Certain Voting Rights. So long as any Series A
                  Preferred Stock remains outstanding, the Company shall not,
                  without the affirmative vote of the holders of at least
                  two-thirds of the Series A Preferred Stock outstanding at the
                  time (i) designate or create, or increase the authorized or
                  issued amount of, any class or series of shares ranking senior
                  to the Series A Preferred Stock with respect to payment of
                  distributions or rights upon liquidation, dissolution or
                  winding-up or reclassify any authorized shares of the Company
                  into any such shares, or create, authorize or issue any
                  obligations or security convertible into or evidencing the
                  right to purchase any such shares, (ii) designate or create,
                  or increase the authorized or issued amount of, any Parity
                  Preferred Stock or any stock which purports to be on parity
                  with the Series A Preferred Stock as to either (but not both)
                  distributions or rights upon dissolution, liquidation or
                  winding-up or reclassify any authorized shares of the Company
                  into any such shares, or create, authorize or issue any
                  obligations or security convertible into or evidencing the
                  right to purchase any such shares, but only to the extent such
                  Parity Preferred Stock is issued to an affiliate (as defined
                  in Section 11 of the Second Article of these Articles
                  Supplementary) of the Company unless such issuance is upon
                  terms determined by the Board of Directors (such determination
                  to include the affirmative approval of a majority of all
                  disinterested directors) to be no more favorable to the
                  holders thereof as it would offer in an arm's length
                  transaction to an unrelated third party, or (iii) either (A)
                  consolidate, merge into or with, or convey, transfer or lease
                  its assets substantially as an entirety, to any corporation or
                  other entity, or (B) amend, alter or repeal the provisions of
                  the Company's Charter (including these Articles Supplementary)
                  or By-laws, whether by merger, consolidation or otherwise, in
                  each case that would materially and adversely affect the
                  powers, special rights, preferences, privileges or voting
                  power of the Series A Preferred Stock or the holders thereof;
                  provided, however, that with respect to the occurrence of a
                  merger, consolidation or sale or lease of all of the Company's
                  assets as an entirety, so long as (a) the Company is the
                  surviving entity and the Series A Preferred Stock remains
                  outstanding with the terms thereof unchanged,


                                       11

<PAGE>   12



                  or (b) the resulting, surviving or transferee entity is a
                  corporation organized under the laws of any state and
                  substitutes for the Series A Preferred Stock other preferred
                  stock having substantially the same terms and same rights as
                  the Series A Preferred Stock, including with respect to
                  distributions, voting rights and rights upon liquidation,
                  dissolution or winding-up, then the occurrence of any such
                  event shall not be deemed to materially and adversely affect
                  the rights, privileges or voting powers of the holders of the
                  Series A Preferred Stock and provided further that any
                  increase in the amount of authorized Preferred Stock or the
                  creation or issuance of any other class or series of Preferred
                  Stock, or any increase in an amount of authorized shares of
                  each class or series, in each case ranking either (a) junior
                  to the Series A Preferred Stock with respect to payment of
                  distributions and the distribution of assets upon liquidation,
                  dissolution or winding-up, or (b) on a parity with the Series
                  A Preferred Stock with respect to payment of distributions or
                  the distribution of assets upon liquidation, dissolution or
                  winding-up, or both, to the extent such Preferred Stock (1) is
                  not issued to an affiliate of the Company, or (2) is issued to
                  an affiliate of the Company, other than upon terms determined
                  by the Board of Directors (such determination to include the
                  affirmative approval of a majority of all disinterested
                  directors) to be no more favorable to the holders thereof than
                  those it would offer in an arm's length transaction to an
                  unrelated third party, shall not be deemed to materially and
                  adversely affect such rights, preferences, privileges or
                  voting powers.

                           SECTION 7.       TRANSFER RESTRICTIONS.  The Series A
                  Preferred Stock shall be subject to the provisions of Article
                  VII (Restriction on Transfer, Acquisition and Redemption of
                  Shares) of the Charter.

                           SECTION 8.       NO CONVERSION RIGHTS. The holders of
                  the Series A Preferred Stock shall not have any rights to
                  convert such shares into shares of any other class or series
                  of stock or into any other securities of, or interest in, the
                  Company.

                           SECTION 9.       NO SINKING FUND.  No sinking fund
                  shall be established for the retirement or redemption of
                  Series A Preferred Stock.

                           SECTION 10.      NO PREEMPTIVE RIGHTS. No holder of
                  the Series A Preferred Stock of the Company shall, as such
                  holder, have any preemptive rights to purchase or subscribe
                  for additional shares of stock of the Company or any other
                  security of the Company which it may issue or sell.

                           SECTION 11.      DEFINITION OF AFFILIATE. For the
                  purposes of these Articles Supplementary, the term
                  "AFFILIATE" shall mean any person or entity which directly
                  or indirectly through one or more intermediaries controls,
                  is controlled by or is under common control with the Company,
                  or its permitted successor.


                                       12

<PAGE>   13




                  THIRD:  The Series A Preferred Stock has been classified and
         designated by the Board of Directors under the authority contained in
         the Charter.

                  FOURTH:  These Articles Supplementary have been approved by
         the Board of Directors of the Company in the manner and by the vote
         required by law.



                        (SIGNATURE APPEARS ON NEXT PAGE)



                                       13

<PAGE>   14


         IN WITNESS WHEREOF, Sun Communities, Inc. has caused these Articles
Supplementary to be signed and acknowledged in its name and on its behalf by the
undersigned duly authorized officer and attested to by its Secretary on this
29th day of September, 1999; and such officer acknowledges that these Articles
Supplementary are the act of Sun Communities, Inc., and he further acknowledges
that, as to all matters or facts set forth herein which are required to be
verified under oath, such matters and facts are true in all material respects to
the best of his knowledge, information and belief, and that this statement is
made under the penalties for perjury.


                                            SUN COMMUNITIES, INC.


                                            By: /s/ Mary A. Petrella
                                                ---------------------
                                                Name: Mary A. Petrella
                                                Title: Vice President



         [SEAL]

         ATTEST:



         Name: /s/ Jeffrey P. Jorissen
               -----------------------
                  Secretary



                                       14





<PAGE>   1
                                                                    EXHIBIT 99.1

                             CONTRIBUTION AGREEMENT



                                  BY AND AMONG


                           BELCREST REALTY CORPORATION
                                       AND
                         BELAIR REAL ESTATE CORPORATION


                                       AND


                  SUN COMMUNITIES OPERATING LIMITED PARTNERSHIP

                                       AND

                              SUN COMMUNITIES, INC.



                         Dated: As of September 29, 1999



<PAGE>   2


                             CONTRIBUTION AGREEMENT


         THIS CONTRIBUTION AGREEMENT (this "AGREEMENT") is made as of September
29, 1999 ("AGREEMENT DATE"), by and among BELCREST REALTY CORPORATION, a
Delaware corporation and BELAIR REAL ESTATE CORPORATION, a Delaware corporation
(the "CONTRIBUTORS"), and SUN COMMUNITIES OPERATING LIMITED PARTNERSHIP, a
Michigan limited partnership (the "OPERATING PARTNERSHIP") and SUN COMMUNITIES,
INC., a Maryland corporation (the "COMPANY").

                                    RECITALS

         WHEREAS, Contributors desire to contribute to Operating Partnership
cash in return for Preference Units in Operating Partnership on the terms and
conditions herein set forth.

         NOW, THEREFORE, in consideration of the mutual covenants contained
herein and other good and valuable consideration, the receipt and sufficiency of
which are hereby acknowledged, the parties hereby agree as follows:

         1.       DEFINITIONS. For purposes of this Agreement, the following
         terms shall have the meanings set forth below:

                  "AFFILIATE" means with respect to any Person, any other Person
         controlled by, controlling or under common control with such Person.
         For purposes hereof, "control" shall include the power to direct the
         actions of a Person, regardless of whether the same shall involve an
         ownership interest in such Person.

                  "AGREEMENT" has the meaning set forth in the initial paragraph
         hereof.

                  "AGREEMENT DATE" has the meaning set forth in the initial
         paragraph hereof.

                  "AGREEMENT OF LIMITED PARTNERSHIP" means the Second Amended
         and Restated Limited Partnership Agreement of Sun Communities Operating
         Limited Partnership, dated as of April 30, 1996, as amended by (i)
         those certain amendments numbered one through one hundred two, and (ii)
         the Amendment; and as further amended from time to time.

                  "AMENDMENT" means the One Hundred Third Amendment to the
         Agreement of Limited Partnership, dated as of the date hereof,
         substantially in the form attached hereto as EXHIBIT A.

                  "ARTICLES SUPPLEMENTARY" means the Articles Supplementary of
         the Company


<PAGE>   3



         substantially in the form attached hereto as EXHIBIT B.

                  "BELAIR" means Belair Real Estate Corporation.

                  "BELCREST" means Belcrest Realty Corporation.

                  "BROKER" has the meaning set forth in PARAGRAPH 10.

                  "BYLAWS" means the Bylaws of the Company, as amended from time
         to time.

                  "CHARTER" means the Articles of Amendment and Restatement of
         the Company, recorded on November 8, 1993, with the State of Maryland
         Department of Assessments and Taxation (the "SMDAT"), as amended by (i)
         that certain Articles of Amendment, recorded on June 20, 1997, with the
         SMDAT, (ii) Articles Supplementary, recorded on June 2, 1998, with the
         SMDAT, and (iii) the Articles Supplementary, and as further amended and
         restated from time to time.

                  "CLOSING" has the meaning set forth in PARAGRAPH 6(A).

                  "CODE" means the Internal Revenue Code of 1986, as amended.

                  "COMPANY" has the meaning set forth in the initial paragraph
         hereof.

                  "CONTRIBUTION AMOUNT" means $50,000,000 US$, such amount to be
         contributed severally $15,000,000 US$ by Belair and $35,000,000 US$ by
         Belcrest.

                  "CONTRIBUTORS" has the meaning set forth in the initial
         paragraph hereof.

                  "CONTRIBUTORS' CLOSING DOCUMENTS" has the meaning set forth in
         PARAGRAPH 6(C).

                  "ERISA" means the Employee Retirement Income Securities Act of
         1974, as amended.

                  "EXCHANGE DATE" means, with respect to any Preference Unit,
         the date on which the exchange of such Preference Unit for Preferred
         Stock shall occur in accordance with the Agreement of Limited
         Partnership.

                  "FINANCING AGREEMENTS" means collectively, that certain (i)
         Indenture, dated as of April 24, 1996, by and among the Company, the
         Operating Partnership and Bankers Trust Company, (ii) $25,500,000
         Facility and Guaranty Agreement, dated as of December 10, 1998, by and
         among the Company, the Operating Partnership, certain subsidiary
         guarantors named therein, The First National Bank of Chicago and
         certain


                                        2

<PAGE>   4


         other lenders named therein, and (iii) Amended and Restated Senior
         Unsecured Line of Credit Agreement, dated as of July 1, 1999, by and
         among the Company, the Operating Partnership, Lehman Brothers Holdings
         Inc., The First National Bank of Chicago, First Union National Bank,
         Michigan National Bank, PNC Bank, Ohio, National Association and
         Pacific Life Insurance Company.

                  "GAAP" means generally accepted accounting principles
         consistently applied.

                  "GOVERNING DOCUMENTS" means, with respect to (i) a limited
         partnership, such limited partnership's certificate of limited
         partnership and the agreement of limited partnership, and any
         amendments or modifications of any of the foregoing; (ii) a
         corporation, such corporation's articles or certificate of
         incorporation, by-laws and any applicable authorizing resolutions, and
         any amendments or modifications of any of the foregoing; (iii) a
         limited liability company, such limited liability company's articles or
         certificate of organization, by-laws and operating agreement or
         agreement of limited liability company, and any amendments or
         modifications of any of the foregoing; and (iv) a trust, such trust's
         declaration of trust and by-laws and any amendments or modifications of
         any of the foregoing.

                  "MANAGER" means Boston Management and Research, a
         Massachusetts business trust.

                  "OPERATING PARTNERSHIP" has the meaning set forth in the
         initial paragraph hereof.

                  "OPERATING PARTNERSHIP'S CLOSING DOCUMENTS" has the meaning
         set forth in PARAGRAPH 6(B).

                  "PARITY PREFERRED STOCK" has the meaning ascribed to such term
         in the Articles Supplementary.

                  "PARTNER" has the meaning ascribed to such term in the
         Agreement of Limited Partnership.

                  "PERSON" means a natural person, partnership (whether general
         or limited), trust, estate, association, corporation, limited liability
         company, unincorporated organization, custodian, nominee or any other
         individual or entity in its own or representative capacity.

                  "PREFERENCE UNITS" shall have the meaning ascribed to "Series
         A Preferred Units" in the Amendment.

                  "PREFERRED STOCK" means the Company's 9.125% Series A
         Cumulative Redeemable Perpetual Preferred Stock upon terms and
         provisions set forth in the ARTICLES


                                        3

<PAGE>   5



         SUPPLEMENTARY.

                  "PTP" means a "publicly traded partnership" within the meaning
         of Section 7704 of the Code.

                  "REGISTRATION RIGHTS AGREEMENT" has the meaning set forth in
         PARAGRAPH 6(B)(IV) hereof.

                  "REIT" has the meaning set forth in PARAGRAPH 8(G) hereof.

                  "SEC" means the Securities and Exchange Commission.

                  "SECURITIES ACT" means the Securities Act of 1933, as amended.

                  "SUBSIDIARY" means with respect to any Person, any
         corporation, partnership, limited liability company, joint venture or
         other entity of which a majority of (i) voting power of the voting
         equity securities or (ii) the outstanding equity interests, is owned,
         directly or indirectly, by such Person.

                  "US$" means United States dollars, lawful money of the United
         States of America.

         2.       CONTRIBUTION OF CASH. Subject to the terms and provisions of
this Agreement, Belcrest and Belair each hereby agrees to contribute to
Operating Partnership their portion of the Contribution Amount by wire transfer
of immediately available funds to an account designated by the Company on the
date of the Closing in consideration for Preference Units in Operating
Partnership. Subject to the terms and provisions of this Agreement, Operating
Partnership hereby agrees to accept the Contribution Amount and to issue to
Belair and Belcrest 600,000 and 1,400,000, respectively, Preference Units in
exchange therefor.

         3.       CONDITIONS TO CLOSING.

         (a)      Conditions to Operating Partnership's and Company's
Obligations. Operating Partnership's and Company's obligations under this
Agreement to accept the Contribution Amount, provide each Contributor with
Preference Units and otherwise consummate the transactions contemplated hereby
are subject to the satisfaction (or waiver in writing by Operating Partnership
and the Company) of the following conditions on or before the Closing:

                  (i)      No Injunction. No temporary restraining order or
                           preliminary or permanent injunction of any court or
                           administrative agency of competent jurisdiction
                           prohibiting the consummation of the transactions
                           contemplated hereby shall be in effect.


                                        4

<PAGE>   6


                  (ii)     Accuracy of Representations and Warranties. The
                           representations and warranties of Contributors
                           contained in this Agreement shall be true and correct
                           in all material respects on the date of the Closing
                           with the same effect as though made on the date of
                           the Closing.

                  (iii)    Performance of Agreement. Each Contributor shall have
                           performed, in all material respects, all of its
                           respective covenants, agreements and obligations
                           required by this Agreement to be performed or
                           complied with by it prior to or at the Closing,
                           including, without limitation, delivery of the
                           Contribution Amount.

                  (iv)     Delivery of Closing Documents. Operating Partnership
                           and Company shall have received the Contributors'
                           Closing Documents.

         If for any reason any of the conditions set forth in this PARAGRAPH
3(A) or elsewhere in this Agreement are not satisfied or waived by Operating
Partnership and Company at or prior to the Closing, then, at Operating
Partnership's or Company's option, this Agreement shall be terminated and
Operating Partnership, Company and Contributors shall be released from their
obligations under this Agreement and none of Operating Partnership, Company or
Contributors shall have any further liability hereunder.

         (b)      Conditions to Contributors' Obligations. Contributors'
obligations under this Agreement to deliver the Contribution Amount and
otherwise consummate the transactions contemplated hereby are subject to the
satisfaction (or waiver in writing by Contributors) of the following conditions
on or before the Closing:

                  (i)      No Injunction. No temporary restraining order or
                           preliminary or permanent injunction or any court or
                           administrative agency of competent jurisdiction
                           prohibiting the consummation of the transactions
                           contemplated hereby shall be in effect.

                  (ii)     Accuracy of Representations and Warranties. The
                           representations and warranties of Operating
                           Partnership and Company contained in this Agreement
                           shall be true and correct in all material respects on
                           the date of the Closing with the same effect as
                           though made on the date of the Closing.

                  (iii)    Performance of Agreement. Operating Partnership and
                           Company shall have performed, in all material
                           respects, all of their respective covenants,
                           agreements and obligations required by this Agreement
                           to be performed or complied with by it prior to or at
                           the Closing.

                  (iv)     Delivery of Closing Documents. Contributors shall
                           have received the


                                        5

<PAGE>   7


                           Operating Partnership's Closing Documents.

         If for any reason any of the conditions set forth in this PARAGRAPH
3(B) or elsewhere in this Agreement are not satisfied or waived by Contributors
at or prior to the Closing, then, at Contributors' option, this Agreement shall
be terminated and Contributors, Operating Partnership and Company shall be
released from their obligations under this Agreement and none of Contributors,
Operating Partnership or Company shall have any further liability hereunder.

         4.       COVENANTS.

         (a)      On the Exchange Date, the Company shall issue shares of
Preferred Stock in the Company in a number equal to the number of shares of
Preferred Stock into which the Preference Units are exchangeable pursuant to the
terms of the Agreement of Limited Partnership. Upon consummation of such
exchange in accordance with the terms of the Agreement of Limited Partnership,
and issuance in accordance with the Charter, such shares of Preferred Stock
shall be validly issued, fully paid and non-assessable.

         (b)      Operating Partnership covenants to notify holders of
Preference Units promptly (i) in the event it anticipates or realizes that the
value of its assets constituting "stock and securities" within the meaning of
Section 351(e)(1) of the Code will equal 10% or more of its total assets and
(ii) in the event it anticipates or realizes that there is a material increase
in such percentage of Operating Partnership's assets constituting "stock and
securities" if immediately preceding such material increase the percentage of
Operating Partnership's assets constituting "stock and securities" within the
meaning of Section 351(e)(1) of the Code equals 10% or more of the Operating
Partnership's total assets.

         (c)      Company agrees that it will notify holders of Preference Units
promptly in the event it becomes aware of any facts that will or likely will
cause Operating Partnership to become a PTP on or after January 1, 2000.

         (d)      Through the end of 1999, Operating Partnership: (i) shall
take all actions reasonably available to it under the Agreement of Limited
Partnership as presently in effect to avoid treatment as a PTP; and (ii) shall
at all times satisfy the private placement safe harbor of Notice 88-75 (1988-2
C.B. 386) taking into account any person treated as a partner within the meaning
of Notice 88-75 (including each person indirectly owning an interest through a
partnership, a grantor trust, or an S corporation) and substituting "400" for
"500". The Operating Partnership further (A) represents that it (i) was actively
engaged in an activity before December 4, 1995, (ii) did not add a substantial
new line of business after December 4, 1995 and (iii) has no plan or intention
to add a substantial new line of business and (B) covenants that it shall (i)
not add a substantial new line of business within the meaning of Section
1.7704-1(1)(3) prior to January 1, 2000 and (ii) shall promptly provide notice
to the holders of the Preference Units in the event that the Operating
Partnership plans or intends to add a substantial new line of business at any
time after January 1, 2000.


                                        6

<PAGE>   8

         (e)      The Operating Partnership covenants that, for each taxable
year during which the Purchaser holds Preference Units, ninety percent (90%) or
more of the gross income of the Operating Partnership for such taxable year
shall constitute "qualifying income" within the meaning of Section 7704(d) of
the Code.

         (f)      Operating Partnership covenants that it shall deliver to
holders of Preference Units the following:

                  (i)      as soon as available, but in no event later than
         ninety (90) days following the end of each fiscal year of Operating
         Partnership, a complete copy of Operating Partnership's audited
         financial statements including a balance sheet, income statement and
         cash flow statement for such fiscal year prepared and audited by an
         independent certified public accountant in accordance with GAAP (which
         requirement, if the Operating Partnership is required to file
         disclosure statements with the SEC, shall be deemed to be satisfied
         upon the delivery to holders of Preference Units of Operating
         Partnership's Annual Report on Form 10-K, within five (5) business days
         of its filing with the SEC); and

                  (ii)     as soon as possible, but in no event later than
         forty-five (45) days following the end of each fiscal quarter of
         Operating Partnership, a complete copy of Operating Partnership's
         unaudited quarterly financial statements including a balance sheet,
         income statement and cash flow statement for such fiscal quarter
         prepared in accordance with GAAP (except with respect to
         footnotes)(which requirement, if the Operating Partnership is required
         to file disclosure statements with the SEC, shall be deemed to be
         satisfied upon the delivery to holders of Preference Units of Operating
         Partnership's Quarterly Report on Form 10-Q, within five (5) business
         days of its filing with the SEC); and

                  (iii)    on a quarterly basis (as soon as possible, but in no
         event later than sixty (60) days following the end of each fiscal
         quarter of Operating Partnership) a reasonable good faith written
         estimate (it being understood and agreed that such estimate shall be
         prepared as if it were being prepared solely for the use of Company and
         Operating Partnership and that such preparation shall not take into
         account any use by, or benefit of, the Contributors) together with
         reasonable supporting information of the percentage of Operating
         Partnership's assets (by value) that are within the relevant categories
         of Section 856(c)(4) of the Code.

                  (iv) on an annual basis (as soon as possible, but in no event
         later than ninety (90) days following the end of each fiscal year of
         Operating Partnership) a reasonable good faith written estimate (it
         being understood and agreed that such estimate shall be prepared as if
         it were being prepared solely for the use of Company and Operating
         Partnership and that such preparation shall not take into account any
         use by, or benefit of,

                                        7

<PAGE>   9



         the Contributors) together with reasonable supporting information of
         the percentage of Operating Partnership's gross income that is derived
         from sources enumerated in Section 856(c)(2) and (3), respectively, of
         the Code.

         (g)      Provided that all other conditions to Operating Partnership's
and Company's obligations set forth in this Agreement have been satisfied or
properly waived, Operating Partnership covenants that it shall record
Contributors as the holders of the Preference Units on its books and records and
shall admit Contributors as limited partners to Operating Partnership on the
Closing Date.

         (h)      Operating Partnership shall not issue any Preference Units to
any Person other than Contributors and Company shall not issue any Preferred
Stock to any Person other than a holder of Preference Units upon exchange of
such Preference Units.

         (i)      Operating Partnership covenants and agrees for the benefit of
the holders of the Preference Units that, the income and assets of the Operating
Partnership will be such as would permit the Operating Partnership to satisfy
the income and assets requirements of Section 856 of the Code if the Operating
Partnership were a REIT.

         (j)      Upon request of any Contributor, from time to time (provided
that such request is not made more often than six times during any given
calendar year), Operating Partnership and Company agree to deliver a certificate
to such Contributor bringing down the representation and warranties made by
Operating Partnership and Company in PARAGRAPHS 8(D), 8(E), 8(F) and 8(G) to a
date requested by a Contributor to the extent, after due inquiry, Operating
Partnership and Company can make such representations and warranties as of such
date.

         (k)      The Company shall not undertake any action, including the
issuance of any securities, without the consent of the holders of the Preference
Units, if such action would require the consent of the holders of the Preferred
Stock if any shares of the Preferred Stock were outstanding at the time of such
action.

         (l)      The Company shall cause the Articles Supplementary to be filed
with the SMDAT and shall deliver within two (2) business days after Closing a
copy of the Articles Supplementary certified as filed with the SMDAT.

         The covenants set forth in this PARAGRAPH 4 shall survive the Closing.

         5.       TRANSACTION COSTS. Except as otherwise specifically set forth
herein, each of the parties hereto shall bear its own costs and expenses with
respect to the transaction contemplated hereby.

         6.       CLOSING.


                                        8

<PAGE>   10


         (a)      The closing of the transactions contemplated by this Agreement
shall be consummated on September 29, 1999 (the "CLOSING").

         (b)      At the Closing, Operating Partnership and Company shall
deliver to Contributors the following documents and the following other items
(the documents and other items described in this PARAGRAPH 6(B) being
collectively referred to herein as the "OPERATING PARTNERSHIP CLOSING
DOCUMENTS"):

                  (i)      This Agreement duly executed and delivered by
         Operating Partnership and Company;

                  (ii)     The Amendment, duly executed and delivered by all
         persons necessary to make such amendment binding on and enforceable
         against all Partners in Operating Partnership;

                  (iii)    The Articles Supplementary of the Company, duly
         executed and delivered by the Company and in proper form for filing
         with the SMDAT.

                  (iv)     The Registration Rights Agreement, in the form set
         forth on EXHIBIT C, duly executed and delivered by Company;

                  (v)      A Certificate of the Secretary of Company
         substantially in the form set forth on EXHIBIT D together with
         completed exhibits attached thereto, executed by the secretary of the
         Company and dated as of the date of the Closing;

                  (vi)     An opinion of counsel to Company and Operating
         Partnership substantially in the form set forth on EXHIBIT E;

                  (vii)    Cross-Receipts, substantially in the form set forth
         on EXHIBITS F-1 and F-2; and

                  (viii)   Certificates representing the Preference Units for
         each Contributor;

                  (ix)     Written Consent of a majority of the Preferred OP
         Unit (as defined in the Agreement of Limited Partnership) holders
         (excluding the holders of the Preference Units) to the issuance of the
         Preference Units; and

                  (x)      Those other closing documents required to be executed
         by it or as may be otherwise necessary or appropriate to consummate the
         transaction contemplated hereby.

         (c)      At the Closing, Contributors shall deliver to Operating
Partnership and Company the following documents and the following other items
(the documents and other items described in this PARAGRAPH 6(C) being
collectively referred to herein as the "CONTRIBUTORS' CLOSING


                                        9

<PAGE>   11


DOCUMENTS"):

                  (i)      Counterparts of those documents listed in PARAGRAPH
         6(B)(I), (II), (IV), and (VII), duly executed and delivered by
         Contributors.

                  (ii)     Those other closing documents required to be executed
         by it or as may be otherwise necessary or appropriate to consummate the
         transaction contemplated hereby.

         7.       REPRESENTATIONS AND WARRANTIES OF CONTRIBUTORS. Contributors
make the following representations and warranties to Operating Partnership and
Company, all of which (except as otherwise designated) are true and correct in
all material respects on the Agreement Date and shall be true and correct in all
material respects as of the date of the Closing:

                  (a)      Contributors are duly organized and validly existing
         under the laws of the state of their organization and have been duly
         authorized by all necessary and appropriate action to enter into this
         Agreement and to consummate the transactions contemplated hereby. This
         Agreement is a valid and binding obligation of Contributors,
         enforceable against Contributors in accordance with its terms, except
         insofar as enforceability may be affected by bankruptcy, insolvency or
         similar laws affecting creditor's rights generally and the availability
         of any particular equitable remedy.

                  (b)      Neither the execution nor the delivery of this
         Agreement nor the consummation of the transactions contemplated hereby
         nor fulfillment of or compliance with the terms and conditions hereof
         (a) conflict with or will result in a breach of any of the terms,
         conditions or provisions of (i) the Governing Documents of Contributors
         or (ii) any agreement, order, judgment, decree, arbitration award,
         statute, regulation or instrument to which either Contributor is a
         party or by which it or its assets are bound, or (b) constitutes or
         will constitute a breach, violation or default under any of the
         foregoing. No consent or approval, authorization, order, regulation or
         qualification of any governmental entity or any other Person is
         required for the execution and delivery of this Agreement and the
         consummation of the transactions contemplated hereby by Contributors.

                  (c)      Contributors acknowledge that the Preference
         Units have not been and will not be registered or qualified under the
         Securities Act or any state securities laws and are offered in reliance
         upon an exemption from registration under Regulation D of the
         Securities Act and similar state law exceptions. The Preference Units
         to be received by Contributors hereunder shall be held by Contributors
         for investment purposes only for their own account, and not with a view
         to or for sale in connection with any distribution of the Preference
         Units, and Contributors acknowledge that the Preference Units cannot be
         sold or otherwise disposed of by the holders thereof unless they are
         subsequently registered under the Securities Act or pursuant to an
         exemption therefrom; and the Preference Units may not be sold, assigned
         or otherwise transferred except in compliance


                                       10

<PAGE>   12


         with the Agreement of Limited Partnership. Contributors hereby
         acknowledge receipt of a copy of the Agreement of Limited Partnership,
         as amended through the date hereof, and represent that they have
         reviewed same and understand the provisions thereof which have a
         bearing on the representations made in this PARAGRAPH 7(C).

                  (d)      Contributors have no contract, understanding,
         agreement or arrangement with any Person to sell, transfer or grant a
         participation to such Person or any other Person, with respect to any
         or all of the Preference Units they will receive in accordance with the
         provisions hereof.

                  (e)      Each Contributor is an "accredited investor" within
         the meaning of Regulation D under the Securities Act and has knowledge
         and experience in financial and business matters such that it is
         capable of evaluating the merits and risks of receiving and owning the
         Preference Units and Contributors are able to bear the economic risk of
         such ownership and understands that an investment in Preference Units
         involves substantial risks.

                  (f)      Neither Contributor is an employee benefit plan
         subject to ERISA or Section 4975 of the Code.

                  (g)      In making this investment, Contributors are relying
         upon the advice of their own personal, legal and tax advisors with
         respect to the tax and other aspects of an investment in Operating
         Partnership.

                  (h)      There is no action, suit, proceeding or, to
         Contributors' knowledge, currently threatened against Contributors that
         questions the validity of this Agreement or the right of Contributors
         to enter into this Agreement or to consummate the transactions
         contemplated hereby.

                  (i)      For such time as a Contributor holds an interest in
         the Operating Partnership, such Contributor will be treated for federal
         income tax purposes as either a real estate investment trust or a C
         corporation (and not as an S corporation or a division of another
         corporation, unless such other corporation complies with this covenant
         and agreement).

                           (j) There has been made available to Contributors and
         their respective advisors the opportunity to ask questions of, and
         receive answers from, the Operating Partnership and the Company
         concerning the terms and conditions of the investment in the Preference
         Units and any other matters pertaining to the Operating Partnership
         and/or the Company. Contributors have had an opportunity to consult
         with counsel and other advisors about the investment in the Preference
         Units and all material documents, records and books pertaining to such
         investment have, upon request, been made available to Contributors and
         their respective advisors.


                                       11

<PAGE>   13


                  Contributors hereby expressly permit JAFFE, RAITT, HEUER &
         WEISS, P.C., as counsel to the Operating Partnership and the Company,
         to rely upon the representations and warranties set forth above as if
         such representations and warranties were made by Contributors directly
         to JAFFE, RAITT, HEUER & WEISS, P.C.

         8.       REPRESENTATIONS AND WARRANTIES OF OPERATING PARTNERSHIP AND
COMPANY. Operating Partnership and Company make the following representations
and warranties to Contributors and Manager, all of which (except as otherwise
designated) are true and correct in all material respects on the Agreement Date
and shall be true and correct in all material respects as of the date of the
Closing:

                  (a)      Operating Partnership is duly organized and validly
         existing under the laws of the state of its organization and is duly
         registered and qualified to do business in each jurisdiction where such
         registration or qualification is material to the transactions
         contemplated hereby and has been duly authorized by all necessary and
         appropriate action to enter into this Agreement, to issue, sell and
         deliver the Preference Units and to consummate the transactions
         contemplated hereby, and the individuals executing this Agreement on
         behalf of Operating Partnership have been duly authorized by all
         necessary and appropriate action on behalf of Operating Partnership.
         This Agreement is a valid and binding obligation of Operating
         Partnership, enforceable against Operating Partnership in accordance
         with its terms, except insofar as enforceability may be affected by
         bankruptcy, insolvency or similar laws affecting creditor's rights
         generally and the availability of any particular equitable remedy.

                  (b)      Company is duly organized and validly existing
         under the laws of the state of its organization and is duly registered
         and qualified to do business in each jurisdiction where such
         registration or qualification is material to the transactions
         contemplated hereby and has been duly authorized by all necessary and
         appropriate action to enter into this Agreement, to issue and deliver,
         upon exchange of the Preference Units in accordance with the Agreement
         of Limited Partnership, the Preferred Stock and to consummate the
         transactions contemplated hereby, and the individuals executing this
         Agreement on behalf of Company have been duly authorized by all
         necessary and appropriate action on behalf of Company. This Agreement
         is a valid and binding obligation of Company, enforceable against
         Company in accordance with its terms, except insofar as enforceability
         may be affected by bankruptcy, insolvency or similar laws affecting
         creditor's rights generally and the availability of any particular
         equitable remedy.

                  (c) Neither the execution nor the delivery of this Agreement
         nor the consummation of the transactions contemplated hereby nor
         fulfillment of or compliance with the terms and conditions hereof (a)
         conflict with or will result in a breach of any of the terms,
         conditions or provisions of (i) the Governing Documents of Company or


                                       12

<PAGE>   14


         Operating Partnership or any of its general partners or (ii) any
         agreement, order, judgment, decree, arbitration award, statute,
         regulation or instrument to which Company or Operating Partnership is a
         party or by which it or its assets are bound, or (b) constitutes or
         will constitute a breach, violation or default under any of the
         foregoing. No consent or approval, authorization, order, registration
         or qualification of any governmental entity or any other Person is
         required for the execution and delivery of this Agreement and the
         consummation of the transactions contemplated hereby by Operating
         Partnership or Company, except for filings under state securities law
         or "blue sky" laws (provided such would not have a material adverse
         affect on the Company or the transaction contemplated by this
         Agreement).

                  (d)      Immediately following the issuance of the Preference
         Units pursuant to this Agreement, less than 8% of the value of
         Operating Partnership's assets will consist of "stock and securities"
         within the meaning of Section 351(e)(1) of the Code and Operating
         Partnership has no plan to increase the amount of its assets
         constituting "stock and securities" to a percentage equal to or greater
         than 10% (except for short-term cash equivalents and other short-term
         assets arising from the temporary investment of stock or debt issuance
         proceeds).

                  (e)      Operating Partnership has not been and is not
         currently a PTP.

                  (f)      Neither the Company nor any Subsidiary of Company has
         any present plan or intention, and neither the Company nor any
         Subsidiary of Company has any actual knowledge of any present plan or
         intention of any partner in Operating Partnership, to take any action
         or actions that would or would likely result in Operating Partnership
         becoming a PTP in the foreseeable future. Neither Company nor any
         Subsidiary of Company has actual knowledge of facts that reasonably
         would cause it to expect that Operating Partnership would or would
         likely become a PTP in the foreseeable future.

                  (g)      The Company has properly elected to be taxable as a
         real estate investment trust (a "REIT") under and in accordance with
         Sections 856 to 860 of the Code, currently qualifies for taxation as a
         REIT and has no plan or intention or knowledge of facts that would
         likely cause it to fail to qualify for taxation as a REIT in the
         foreseeable future.

                  (h)      The Preferred Stock issuable upon exchange of the
         Preference Units in accordance with the Agreement of Limited
         Partnership have been duly and validly reserved for issuance, and upon
         issuance in accordance with this Agreement, the Agreement of Limited
         Partnership and the Charter, shall be duly and validly issued, fully
         paid and non-assessable. The Preference Units have been duly authorized
         and upon contribution of the Contribution Amount to the Operating
         Partnership will be validly issued, fully paid and non-assessable.

                  (i)      Neither the issuance, sale or delivery of the
         Preference Units nor, upon


                                       13

<PAGE>   15

         exchange, the issuance and delivery of the Preferred Stock, is subject
         to any preemptive right of any Partner of Operating Partnership arising
         under law or the Agreement of Limited Partnership or any stockholder of
         the Company arising under applicable law or the Charter or Bylaws, or
         to any contractual right of first refusal or other right in favor of
         any Person. With the exception of the Charter and the Agreement of
         Limited Partnership, there are no agreements or understandings in
         effect restricting the voting rights, the distribution rights (except
         with respect to the Financing Agreements) or any other rights of the
         holders of the Preference Units, or upon exchange, the Preferred Stock.

                  (j)      There is no action, suit, proceeding or investigation
         pending or, to the knowledge of the Company or the Operating
         Partnership, currently threatened against Operating Partnership or
         Company that questions the validity of this Agreement or the right of
         Operating Partnership or Company to enter into this Agreement, and to
         consummate the transactions contemplated hereby, or that would
         reasonably be expected to, either individually or in the aggregate,
         have a material adverse affect on the business, capitalization,
         operations, properties or condition (financially or otherwise) of
         Operating Partnership or Company, or result in any change in the
         current equity ownership of Operating Partnership or Company, nor is
         Company or Operating Partnership aware that there is any basis for the
         foregoing.

                  (k)      Neither Operating Partnership nor Company is in
         conflict with, or in default or violation of (i) any law, rule,
         regulation, order, judgment or decree applicable to it or by which any
         of its properties or assets is bound or affected, or (ii) any note,
         bond, mortgage, indenture or obligation to which it is a party or by
         which Operating Partnership or Company or any property or asset of
         Company or Operating Partnership is bound or affected, except for any
         such conflicts, defaults or violations that would not reasonably be
         expected to, individually or in the aggregate, have a material adverse
         effect on the business, operations, properties or condition
         (financially or otherwise) of Operating Partnership or Company.

                  (l)       Partnership and Company hereby consent to
         any pledge and release of such pledge of the Preference Units subject
         to and in accordance with the Agreement of Limited Partnership, and to
         any pledge and release of such pledge of any Preferred Stock into which
         such Preference Units are exchanged, to secure the obligations of
         Contributors.

                  (m)      Operating Partnership has no plan or present
         intention of merging, consolidating, or selling or leasing all of its
         assets as an entirety, where the resulting, surviving or transferee
         entity is a corporation or otherwise not a pass-through entity.

         Operating Partnership and Company hereby expressly permit Shearman &
Sterling, as counsel to Contributors and Manager, to rely upon the
representations and warranties set forth in this PARAGRAPH 8 as if such
representations and warranties were made by Operating Partnership

                                       14

<PAGE>   16

and Company directly to Shearman & Sterling.

         9.       SURVIVAL OF REPRESENTATIONS AND WARRANTIES. The
representations and warranties set forth in PARAGRAPHS 7 and 8 shall survive the
Closing.

         10.      BROKERS. Each party represents and warrants to the other that
it has dealt with no broker, finder or other person (collectively, "BROKER")
with respect to this Agreement or the transactions contemplated hereby and that
no Broker is entitled to a commission as a result of this transaction, except
for Donaldson, Lufkin & Jenrette Securities Corporation. Operating Partnership
is responsible for the commission to Donaldson, Lufkin & Jenrette Securities
Corporation pursuant to a separate agreement. Each of (a) Operating Partnership
and Company, severally and not jointly, on the one hand, and (b) Contributors on
the other hand, agree to indemnify and hold harmless the other party against any
loss, liability, damage, expense or claim incurred by reason of any brokerage
commission or finder's fee alleged to be payable because of any act, omission or
statement of the indemnifying party. Such indemnity obligation shall be deemed
to include the payment of reasonable attorney's fees and court costs incurred in
defending any such claim. The provisions of this PARAGRAPH 10 shall survive the
Closing.

         11.      COMPLETE AGREEMENT. This Agreement represents the entire
agreement between Contributors, Operating Partnership and Company covering
everything agreed upon or understood in this transaction and all other prior
agreements, written or oral, including any prior subscription agreements or
letters, are merged into this Agreement. There are no oral promises, conditions,
representations, understandings, interpretations or terms of any kind as
conditions or inducements to the execution hereof in effect between the parties.
No change or addition shall be made to this Agreement except by a written
agreement executed by Contributors, Operating Partnership and Company.

         12.      AUTHORIZED SIGNATORIES. The persons executing this Agreement
for and on behalf of Contributors, Operating Partnership and Company each
represent that they have the requisite authority to bind the entities on whose
behalf they are signing.

         13.      PARTIAL INVALIDITY. If any term, covenant or condition of this
Agreement is held to be invalid or unenforceable in any respect, such invalidity
or unenforceability shall not affect any other provision hereof, and this
Agreement shall be construed as if such invalid or unenforceable provision had
never been contained herein.

         14.      MISCELLANEOUS.

                  (a)      Governing Law. This Agreement shall be interpreted
         and enforced according to the laws of the State of Michigan.

                  (b)      Headings; Sections. All headings in this Agreement
         are inserted for convenience only and do not form part of this
         Agreement or limit, expand or otherwise


                                       15

<PAGE>   17



         alter the meaning of any provisions hereof.

                  (c)      Counterparts. This Agreement may be executed in any
         number of counterparts, each of which shall be deemed to be an original
         and all of which shall constitute one and the same agreement. Facsimile
         signatures shall be deemed effective execution of this Agreement and
         may be relied upon as such by the other party. In the event facsimile
         signatures are delivered, originals of such signatures shall be
         delivered to the other party within three (3) business days after
         execution.

                  (d)      No Benefit For Third Parties. The provisions of this
         Agreement are intended to be for the sole benefit of the parties hereto
         and their respective successors and permitted assigns, and none of the
         provisions of this Agreement are intended to be, nor shall they be
         construed to be, for the benefit of any third party.

                  (e)      Rights and Obligations. The rights and obligations of
         Contributors, Operating Partnership and Company shall inure to the
         benefit of and be binding upon the parties hereto and their respective
         successors and permitted assigns.

                  (f)      Limitation of Liability. The liability of
         Contributors hereunder shall be limited to the Contribution Amount.

         15.      NOTICES. All notices and other communications required or
permitted to be given hereunder shall be in writing and shall be deemed to have
been duly given if personally delivered, delivered by nationally recognized
overnight courier with proof of delivery thereof, sent by United States
registered or certified mail (postage prepaid, return receipt requested)
addressed as hereinafter provided or via telephonic facsimile transmission with
proof of delivery in the form of a facsimile transmission confirmation report.
Notice shall be sent and deemed given when (a) if personally delivered or via
nationally recognized overnight courier, then upon receipt by the receiving
party, or (b) if mailed, then three (3) days after being postmarked, or (c) if
sent via telephonic facsimile transmission, then at the time set forth in the
facsimile transmission confirmation report.

         Any party listed below may change its address hereunder by notice to
the other party listed below. Until further notice, notice and other
communications hereunder shall be addressed to the parties listed below as
follows:

                  If to Contributors:         Belcrest Realty Corporation and
                                              Belair Real Estate Corporation
                                              c/o Eaton Vance Management
                                              The Eaton Vance Building
                                              255 State Street
                                              Boston, Massachusetts  02109
                                              Attention: Mr. Alan Dynner

                                       16

<PAGE>   18


                                              Fax: (617) 338-8054

                  If to Operating
                  Partnership                 Sun Communities Operating Limited
                  or Company:                 Partnership
                                              Suite 145
                                              31700 Middlebelt Road
                                              Farmington Hills, Michigan 48334
                                              Attention: Mr. Jeffrey P. Jorissen
                                              Fax: (248) 932-3072

         16.      PRESS RELEASES. Contributors, Operating Partnership and
Company each agrees that it will not issue any press release, advertisement or
other public communication with respect to this Agreement or transaction
contemplated therein without the prior consent of the other party hereto, except
to the extent such communication is required by applicable law or the rules of
the New York Stock Exchange; provided, however, that in such event, such party
shall deliver a copy of such proposed press release to the other party prior to
the publication thereof and shall grant the other party an opportunity to review
the same and shall make reasonable revisions to such proposed press release
requested by the other party.







                            (SIGNATURES ON NEXT PAGE)




                                       17

<PAGE>   19



         IN WITNESS WHEREOF, the parties have caused this Agreement to be
executed as of the day first written above.


                                    CONTRIBUTORS:

                                    BELCREST REALTY CORPORATION


                                    By: /s/ William R Cross
                                       ------------------------------
                                        Name: William R Cross
                                        Title: Vice President


                                    BELAIR REAL ESTATE CORPORATION


                                    By: /s/ William R Cross
                                       ------------------------------
                                        Name: William R Cross
                                        Title: Vice President






                       (SIGNATURES CONTINUE ON NEXT PAGE)






<PAGE>   20



                                    OPERATING PARTNERSHIP:

                                    SUN COMMUNITIES OPERATING LIMITED
                                    PARTNERSHIP

                                    By:   Sun Communities, Inc., its
                                          general partner


                                    By: /s/ Jeffrey P. Jorissen
                                       ------------------------------
                                        Name: Jeffrey P. Jorissen
                                        Title: Chief Financial Officer


                                    COMPANY:

                                    SUN COMMUNITIES, INC.



                                    By: /s/ Jeffrey P. Jorissen
                                       ------------------------------
                                       Name: Jeffrey P. Jorissen
                                       Title: Chief Financial Officer






<PAGE>   1
                                                                    EXHIBIT 99.2


                           ONE HUNDRED THIRD AMENDMENT
                                     TO THE
            SECOND AMENDED AND RESTATED LIMITED PARTNERSHIP AGREEMENT
                                       OF
                  SUN COMMUNITIES OPERATING LIMITED PARTNERSHIP


         THIS ONE HUNDRED THIRD AMENDMENT TO THE SECOND AMENDED AND RESTATED
LIMITED PARTNERSHIP AGREEMENT OF SUN COMMUNITIES OPERATING LIMITED PARTNERSHIP
(this "AMENDMENT") is entered into as of September 29, 1999, 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"), BELCREST REALTY CORPORATION, a Delaware
corporation ("BELCREST") and BELAIR REAL ESTATE CORPORATION, a Delaware
corporation ("BELAIR"; each of Belcrest and Belair a "SERIES A PREFERRED
PARTNER" and collectively "SERIES A PREFERRED PARTNERS").

                                    RECITALS

         A.       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 one hundred two (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.

         B.       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 date hereof (a) Belcrest
has contributed $35,000,000 to the Partnership in exchange for the issuance to
Belcrest of 1,400,000 Series A Preferred Units (as defined in the Agreement, as
amended hereby), and (b) Belair has contributed $15,000,000 to the Partnership
in exchange for the issuance of 600,000 Series A Preferred Units. The Series A
Preferred Units issued to the Series A Preferred Partners have been duly issued
and fully paid. The Series A Preferred Partners are hereby admitted to the
Partnership, effective as of September 29, 1999, each as a new Limited Partner,
and by execution of this Amendment the Series A Preferred Partners have agreed
to be bound by all of the terms and conditions of the



<PAGE>   2

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.

         2.       Sections 3.1 and 3.2. Sections 3.1 and 3.2 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, Preferred OP Units and Series A Preferred
         Units.

         3.2      COMMON OP 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) Preferred Dividends, and (ii) Series A Priority Return.
         No distribution shall be made in respect of Common OP Units while any
         accrued (i) Preferred Dividends, or (ii) Series A Priority Return,
         remains unpaid unless all such unpaid amounts are paid simultaneously
         with such distribution."

         3.       Section 3.6(b). The second sentence of Section 3.6(b) of the
Agreement is hereby amended by the insertion of the words "and preferred stock,
including, without limitation, Series A Preferred Stock" after the words "other
than its existing single class of common stock".

         4.       Section 3.6(c). Section 3.6(c) of the Agreement is hereby
amended by the insertion of the words "(excluding Series A Preferred Units)"
after the words "issue additional OP Units".

         5.       Section 3.8. Section 3.8(b) of the Agreement is hereby amended
by the insertion of the sentence:

         "Nothing contained in this Section 3.8(b) shall affect, in any manner
         adverse to the holders of the Series A Preferred Units, the rights of
         the holders of the Series A Preferred Units in Section 16 of this
         Agreement or in the Contribution Agreement with the Series A Preferred
         Partners."

         6.       Section 3.9. Section 3.9 of the Agreement is hereby deleted in
its entirety and replaced with the following:

         "3.9     WITHDRAWALS



                                       2
<PAGE>   3

                  No Partner shall be entitled to withdraw any portion of its
         capital account, except by way of distribution pursuant to Sections
         4.3, 8.2 and 16 hereof."

         7.       Section 9.1. Section 9.1 of the Agreement is hereby amended by
(i) the insertion of the words "and SECTION 9.4" after the words "Subject to
Section 9.3", and (ii) by adding the following sentence at the end thereof:

         "Notwithstanding anything to the contrary contained in this Section
         9.1, no Limited Partner may transfer all or any part of its OP Units
         if, in the opinion of counsel to the Partnership, such transfer would
         likely cause the Partnership to be a PTP (as defined in Section 16.1
         below)."

         8.       Section 9.4. The following new Section 9.4 is hereby added to
the Agreement:

         "9.4     LIMITATIONS ON TRANSFER RESTRICTIONS

                           (a) Notwithstanding anything in this Agreement to the
                  contrary, an exchange pursuant to SECTION 16.9 (Exchange
                  Rights) below shall not be deemed a "transfer" within the
                  purview of SECTION 9 (Transferability of Interests).

                           (b) Notwithstanding anything in this Agreement to the
                  contrary, the General Partner shall be deemed to have
                  consented to the admission of any transferee of the Series A
                  Preferred Units as a substitute Limited Partner, provided (i)
                  the provisions of SECTION 9.3(A) (Restrictions on Transfer)
                  hereof are satisfied with respect to the transfer of Series A
                  Preferred Units, (ii) that the effect of such admission would
                  not cause the Partnership to be a PTP, (iii) such admission
                  would not result in more than twenty partners within the
                  meaning of Notice 88-75 (1988-2 C.B. 386) holding all
                  outstanding Series A Preferred Units for so long as the
                  Partnership satisfies the private placement safe harbor of
                  Notice 88-75 (1988- 2 C.B. 386), and (iv) such transferee
                  agrees to be bound by the terms of this Agreement.

         9.       Section 14.

                  (a)      The definition of the term "TRANSFER" is hereby
         amended to include the following text at the end of the first sentence
         "; except that an exchange pursuant to SECTION 16.9 (Exchange Rights)
         below shall not be deemed a "transfer" hereunder."

                  (b)      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, Preferred OP Units and Series A
         Preferred Units."




                                        3

<PAGE>   4

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

                           "CHARTER" shall mean the Articles of Amendment and
                  Restatement of the General Partner, recorded on November 11,
                  1993, with the State of Maryland Department of Assessments and
                  Taxation (the "SMDAT"), as amended by (i) that certain
                  Articles of Amendment, recorded on June 20, 1997, with the
                  SMDAT, and (ii) the Series A Articles Supplementary, and as
                  may be further amended from time to time.

                           "DEPRECIATION" shall have the meaning set forth
                  therefor in Section 4.2 hereof.

                           "EXCESS SERIES A UNITS" shall have the meaning set
                  forth therefor in Section 16.9(a) hereof.

                           "ISSUANCE RATE" shall mean 9.125% per annum,
                  determined on the basis of a 360-day year of twelve 30-day
                  months.

                           "JUNIOR UNITS" shall have the meaning set forth
                  therefor in Section 16.3(c) hereof.

                           "PARITY PREFERRED UNITS" shall have the meaning set
                  forth therefor in Section 16.1 hereof.

                           "PTP" shall have the meaning set forth therefor in
                  Section 16.1 hereof.

                           "REGULATIONS" shall mean the Income Tax Regulations,
                  including Temporary Regulations, promulgated under the
                  Internal Revenue Code, as such regulations may be amended from
                  time to time (including corresponding provisions and
                  succeeding provisions).

                           "REVISED RATE" shall have the meaning set forth
                  therefor in Section 16.3(a) hereof.

                           "SERIES A ARTICLES SUPPLEMENTARY" shall mean those
                  Articles Supplementary of the General Partner establishing the
                  9.125% Series A Cumulative Redeemable Perpetual Preferred
                  Stock of the General Partner and intended to be filed with the
                  SMDAT on or about September 29, 1999.

                           "SERIES A EXCHANGE NOTICE" shall have the meaning set
                  forth therefor in Section 16.9(b) hereof.



                                        4

<PAGE>   5

                           "SERIES A EXCHANGE PRICE" shall have the meaning set
                  forth therefor in Section 16.9(a) hereof.

                           "SERIES A PREFERRED PARTNERS" means Belcrest and
                  Belair, and their respective successors and permitted assigns.

                           "SERIES A PREFERRED UNIT DISTRIBUTION PAYMENT DATE"
                  shall have the meaning set forth therefor in Section 16.3(a)
                  hereof.

                           "SERIES A PREFERRED UNITS" shall have the meaning set
                  forth therefor in Section 16.2 hereof.

                           "SERIES A PRIORITY RETURN" shall have the meaning set
                  forth therefor in Section 16.1 hereof, as such meaning may be
                  modified by the provisions of Section 16.3(a)(ii).

                           "SERIES A REDEMPTION PRICE" shall have the meaning
                  set forth therefor in Section 16.6 hereof.

                           "SUBSIDIARY" shall have the meaning set forth
                  therefor in Section 16.1 hereof.

         10.      Section 16. The following new Section 16 is inserted in the
Agreement after Section 15 thereof:

         "16.     SERIES A PREFERRED UNITS.

                  SECTION 16.1 DEFINITIONS. For purposes of this Agreement, the
         term "PARITY PREFERRED UNITS" shall be used to refer to 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 a parity with Series A Preferred Units with respect to
         distributions and rights upon voluntary or involuntary liquidation,
         winding-up or dissolution of the Partnership, and includes the
         Preferred OP Units. The term "SERIES A PRIORITY RETURN" shall mean, an
         amount equal to 9.125% per annum, determined on the basis of a 360 day
         year of twelve 30 day months (and for any period shorter than a full
         quarterly period for which distributions are computed, the amount of
         the distribution payable will be computed based on the ratio of the
         actual number of days elapsed in such period to ninety (90) days),
         cumulative to the extent not distributed for any given distribution
         period pursuant to Section 4.3 of the Agreement, of the stated value of
         $25.00 per Series A Preferred Unit, commencing on the date of issuance
         of such Series A Preferred Unit. The term "PTP" shall mean a "publicly
         traded partnership" within the meaning of Section 7704 of the Internal
         Revenue Code. The term "SUBSIDIARY" shall



                                        5
<PAGE>   6

         mean with respect to any person, any corporation, partnership, limited
         liability company, joint venture or other entity of which a majority of
         (i) voting power of the voting equity securities or (ii) the
         outstanding equity interests, is owned, directly or indirectly, by such
         person.

                  SECTION 16.2 DESIGNATION AND NUMBER. A series of OP Units in
         the Partnership designated as the "9.125% Series A Cumulative
         Redeemable Perpetual Preferred Units" (the "SERIES A PREFERRED UNITS")
         is hereby established. The number of Series A Preferred Units shall be
         2,000,000.

                  SECTION 16.3 DISTRIBUTIONS.

                           (a) Payment of Distributions.

                               (i)   Subject to the rights of holders of
                           Parity Preferred Units as to the payment of
                           distributions, pursuant to Sections 4.3 and 8.2 of
                           the Agreement, holders of Series A Preferred Units
                           shall be entitled to receive, when, as and if
                           declared by the Partnership acting through the
                           General Partner, out of the Partnership's available
                           cash, the Series A Priority Return.

                               (ii)  In the event that on or prior to
                           December 31, 1999, the Partnership's outstanding
                           senior unsecured debt shall have either an
                           unconditional, published (A) rating by Standard and
                           Poor's Rating Group ("STANDARD AND POOR'S") exceeding
                           "BBB" or (B) rating by Moody's Investors Service,
                           Inc. ("MOODY'S") exceeding "Baa3", then, beginning on
                           the date on which either of such foregoing conditions
                           is met, the Series A Priority Return shall be 8.875%
                           (the "REVISED RATE") of the original capital
                           contribution per Series A Preferred Unit, in which
                           case the designation of the Series A Preferred Units
                           will change accordingly to reflect such new
                           distribution rate; provided, that, if either (A) such
                           Standard & Poor's unconditional published rating
                           exceeding "BBB" or (B) such Moody's rating exceeding
                           "Baa3" shall not be in effect on December 31, 1999,
                           then the Revised Rate herein provided shall be void
                           ab initio and the Partnership shall pay on December
                           31, 1999, in addition to the distribution then due to
                           the holders of the Series A Preferred Units, the
                           difference between (1) the distribution that would
                           have accrued at the Issuance Rate during the current
                           and any prior quarterly distribution period and (2)
                           the distribution that actually accrued during such
                           distribution periods at the voided Revised Rate.

                               (iii) Promptly after December 31, 1999, the
                           parties hereto shall

                                       6

<PAGE>   7

                           execute, acknowledge and deliver or cause to be
                           executed acknowledged and delivered all instruments
                           and documents as may be reasonably necessary or
                           desirable to memorialize the distribution rate
                           revised in accordance with SECTION 16.3(A)(II) above
                           and in effect from and after December 31, 1999.

                               (iv)  All distributions shall be cumulative,
                           shall accrue from the original date of issuance and
                           will be payable (i) 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, commencing
                           on December 31, 1999 (with the first such payment to
                           include the amount accrued from the period commencing
                           on the date hereof through and including December 31,
                           1999) and, (ii) in the event of (A) an exchange of
                           Series A Preferred Units into Series A Preferred
                           Stock (as defined in the Series A Articles
                           Supplementary), or (B) a redemption of Series A
                           Preferred Units, on the exchange date or redemption
                           date, as applicable (each a "SERIES A PREFERRED UNIT
                           DISTRIBUTION PAYMENT DATE"). The amount of the
                           distribution payable for any period will be computed
                           on the basis of a 360-day year of twelve 30-day
                           months and for any period shorter than a full
                           quarterly period for which distributions are
                           computed, the amount of the distribution payable will
                           be computed based on the ratio of the actual number
                           of days elapsed in such period to ninety (90) days.
                           If any date on which distributions are to be made on
                           the Series A Preferred Units is not a Business Day
                           (as defined in SECTION 14), 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) except that, if such Business Day is
                           in the next succeeding calendar year, such payment
                           shall be made on the immediately preceding Business
                           Day, in each case with the same force and effect as
                           if made on such date. Distributions on the Series A
                           Preferred Units will be made to the holders of record
                           of the Series A Preferred Units on the relevant
                           record dates to be fixed by the Partnership acting
                           through the General Partner, which record dates shall
                           in no event exceed fifteen (15) Business Days prior
                           to the relevant Series A Preferred Unit Distribution
                           Payment Date.

                           (b) Distributions Cumulative. Distributions on the
                  Series A Preferred Units will accrue whether or not the terms
                  and provisions of any agreement of the Partnership, including
                  any agreement relating to its indebtedness at any time
                  prohibit the declaration, setting aside for payment or current
                  payment of distributions, whether or not the Partnership has
                  earnings, whether or not there are


                                        7

<PAGE>   8



                  funds legally available for the payment of such of such
                  distributions and whether or not such distributions are
                  authorized. Accrued but unpaid distributions on the Series A
                  Preferred Units will accumulate as of the Series A Preferred
                  Unit Distribution Payment Date on which they first become
                  payable. Distributions on account of arrears for any past
                  distribution periods may be declared and paid at any time,
                  without reference to a regular Series A Preferred Unit
                  Distribution Payment Date to holders of record of the Series A
                  Preferred Units on the record date fixed by the Partnership
                  acting through the General Partner which date shall not exceed
                  fifteen (15) Business Days prior to the payment date.
                  Accumulated and unpaid distributions will not bear interest.

                           (c)      Priority as to Distributions.

                                    (i)   So long as any Series A Preferred
                           Units are outstanding, no distribution of cash or
                           other property shall be authorized, declared, paid or
                           set apart for payment on or with respect to any class
                           or series of OP Units of the Partnership ranking
                           junior as to the payment of distributions or rights
                           upon a voluntary or involuntary liquidation,
                           dissolution or winding-up of the Partnership to the
                           Series A Preferred Units (collectively, "JUNIOR
                           UNITS"), nor shall any cash or other property be set
                           aside for or applied to the purchase, redemption or
                           other acquisition for consideration of any Series A
                           Preferred Units, any Parity Preferred Units or any
                           Junior Units, unless, in each case, all distributions
                           accumulated on all Series A Preferred Units and all
                           classes and series of outstanding Parity Preferred
                           Units have been paid in full. The foregoing sentence
                           will not prohibit (a) distributions payable solely in
                           OP Units ranking junior to the Series A Preferred
                           Units as to the payment of distributions and rights
                           upon a voluntary or involuntary liquidation,
                           dissolution or winding-up of the Partnership, (b) the
                           conversion of Junior Units or Parity Preferred Units
                           into OP Units of the Partnership ranking junior to
                           the Series A Preferred Units as to distributions and
                           rights upon a voluntary or involuntary liquidation,
                           dissolution or winding-up of the Partnership, or (c)
                           the redemption of OP Units corresponding to any
                           Series A Preferred Stock (as hereinafter defined),
                           Parity Preferred Stock (as defined in the Series A
                           Articles Supplementary) with respect to distributions
                           or Junior Stock (as defined in the Series A Articles
                           Supplementary) to be purchased by the General Partner
                           pursuant to Article VII of the Charter to preserve
                           the General Partner's status as a real estate
                           investment trust, provided that such redemption shall
                           be upon the same terms as the corresponding purchase
                           pursuant to Article VII of the Charter.

                                    (ii)  So long as distributions have not been
                           paid in full (or a sum

                                        8

<PAGE>   9

                           sufficient for such full payment is not irrevocably
                           deposited in trust for immediate payment) upon the
                           Series A Preferred Units, all distributions
                           authorized and declared on the Series A Preferred
                           Units and all classes or series of outstanding Parity
                           Preferred Units shall be authorized and declared so
                           that the amount of distributions authorized and
                           declared per Series A Preferred Unit and such other
                           classes or series of Parity Preferred Units shall in
                           all cases bear to each other the same ratio that
                           accrued distributions per Series A Preferred Unit and
                           such other classes or series of Parity Preferred
                           Units (which shall not include any accumulation in
                           respect of unpaid distributions for prior
                           distribution periods if such class or series of
                           Parity Preferred Units do not have cumulative
                           distribution rights) bear to each other.

                           (d)   Distributions on OP Units held by General
                  Partner. Notwithstanding anything to the contrary herein,
                  distributions on OP Units held by the General Partner may be
                  made, without preserving the priority of distributions
                  described in Section 16.3(c)(i) and (ii), but only to the
                  extent such distributions are required to preserve the real
                  estate investment trust status of the General Partner.

                           (e)   No Further Rights. Holders of Series A
                  Preferred Units shall not be entitled to any distributions,
                  whether payable in cash, other property or otherwise, in
                  excess of the full cumulative distributions described herein.

                  SECTION 16.4   ALLOCATIONS. Section 4.2 of the Agreement is
         hereby deleted in its entirety and replaced with the following:

                 "4.2      PROFITS AND LOSSES

                  (a)      Profits. Profits for any fiscal year (or portion
                           thereof) shall be allocated in the following order
                           and priority:

                           (i)   first, to the General Partner, to the extent
                                 that losses previously allocated to the General
                                 Partner pursuant to Section 4.2(b)(iii) below
                                 for all prior fiscal years or other applicable
                                 periods exceed profits previously allocated to
                                 the General Partner pursuant to this Section
                                 4.2(a)(i) for all prior fiscal years or other
                                 applicable periods,

                           (ii)  second, to Partners holding Series A Preferred
                                 Units, to the extent that losses previously
                                 allocated to such Partners pursuant to Section
                                 4.2(b)(ii) below for all prior fiscal years or
                                 other applicable


                                        9

<PAGE>   10
                                 periods exceed profits previously allocated to
                                 such Partners pursuant to this Section
                                 4.2(a)(ii) for all prior fiscal years or other
                                 applicable periods,

                           (iii) third, to Partners holding OP Units other than
                                 Series A Preferred Units, to the extent that
                                 losses previously allocated to such Partners
                                 pursuant to Section 4.2(b)(i) below for all
                                 prior fiscal years or other applicable periods
                                 exceed profits previously allocated to such
                                 Partners pursuant to this Section 4.2(a)(iii)
                                 for all prior fiscal years or other applicable
                                 periods,

                           (iv)  fourth, to Partners holding Series A Preferred
                                 Units, to each such Partner pro rata in
                                 proportion to all Series A Preferred Units held
                                 by such Partner in proportion to all Series A
                                 Preferred Units outstanding, until each such
                                 Partner has been allocated profits equal to the
                                 excess of (x) the cumulative amount of Series A
                                 Priority Return all such Partners are entitled
                                 to receive as of the last day of the current
                                 fiscal year or other applicable period or to
                                 the date of redemption, to the extent such
                                 Series A Preferred Units are redeemed during
                                 such period, over (y) the cumulative profits
                                 allocated to all such Partners, pursuant to
                                 this Section 4.2(a)(iv) for all prior fiscal
                                 years or other applicable periods, and

                           (v)   fifth, with respect to OP Units other than
                                 Series A Preferred Units, pro rata in
                                 proportion to the number of OP Units other than
                                 Series A Preferred Units, held by each such
                                 Partner as of the last day of the period for
                                 which such allocation is being made; provided,
                                 however, that the profits allocated to any
                                 Preferred OP Units pursuant to this Section
                                 4.2(b)(v) for any calendar year shall not
                                 exceed the amount of Preferred Dividends
                                 thereon for that calendar year, and any such
                                 excess profits remaining after the application
                                 of such limitation shall be allocated to the
                                 holders of the Common OP Units, pro rata.

                  (b)      Losses. Losses shall be allocated in the following
                           order and priority:

                           (i)   first, to the Partners (including the General
                                 Partner) holding OP Units, other than Series A
                                 Preferred Units, pro rata in proportion to the
                                 number of OP Units other than Series A
                                 Preferred Units held by each Partner as of the
                                 last day of the period for which such
                                 allocation is being made without causing any
                                 Partner to have an adjusted capital account
                                 deficit with respect to such OP Units,


                                       10

<PAGE>   11

                           (ii)     second, to the Partners holding any Series A
                                    Preferred Units in accordance with the
                                    rights of the Series A Preferred Units,
                                    without causing any Partner to have an
                                    adjusted capital account deficit with
                                    respect to such Series A Preferred Units,
                                    and

                           (iii)    third, to the General Partner.

                           To the extent permitted under Section 704 of the
                  Internal Revenue Code, solely for purposes of allocating
                  profits or losses in any taxable year (or a portion thereof)
                  to Partners holding Series A Preferred Units pursuant to
                  Section 4.2(a) and (b) hereof, items of profit or loss, as the
                  case may be, shall not include depreciation, as adjusted under
                  Regulations Section 1.704-1(b)(2) ("DEPRECIATION"), with
                  respect to properties that are "ceiling limited" in respect of
                  holders of Series A Preferred Units. For purposes of the
                  preceding sentence, Partnership property shall be considered
                  "ceiling limited" in respect of a holder of Series A Preferred
                  Units if Depreciation attributable to such Partnership
                  property which would otherwise be allocable to such Partner,
                  without regard to this paragraph, exceeds Depreciation
                  determined for federal income tax purposes attributable to
                  such Partnership property which would otherwise be allocable
                  to such holder by more than 5%."

                  SECTION 16.5      LIQUIDATION PROCEEDS.

                           (a)      Upon any voluntary or involuntary
                  liquidation, dissolution or winding-up of the affairs of the
                  Partnership, distributions on the Series A Preferred Units
                  shall be made in accordance with Section 8.2 of the Agreement,
                  except that Section 8.2 is hereby amended so that all
                  references in Section 8.2 to (i) "Preferred OP Units" are
                  revised to be "Preferred OP Units and Series A Preferred
                  Units", and (ii) "Preferred Dividends" are revised to be
                  "Preferred Dividends or Series A Priority Return, as the case
                  may be."

                           (b)      Notice. Written notice of any such 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 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 they are
                  entitled, the holders of Series A


                                       11

<PAGE>   12

                  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 General Partner to, or the consolidation or
                  merger or other business combination of the Partnership with
                  or into, any corporation, trust, partnership, limited
                  liability company or other entity (or of any corporation,
                  trust, partnership, limited liability company or other entity
                  with or into the Partnership) shall not be deemed to
                  constitute a liquidation, dissolution or winding-up of the
                  Partnership.

                  SECTION 16.6      OPTIONAL REDEMPTION.

                           (a) Right of Optional Redemption. The Series A
                  Preferred Units may not be redeemed prior to the fifth (5th)
                  anniversary of the issuance date. On or after such date, the
                  Partnership shall have the right to redeem the Series A
                  Preferred Units, in whole or in part, at any time or from time
                  to time, upon not less than thirty (30) nor more than sixty
                  (60) days written notice, at a redemption price, payable in
                  cash, equal to the capital account balance of the holders of
                  Series A Preferred Units (the "SERIES A REDEMPTION PRICE");
                  provided, however, that no redemption pursuant to this SECTION
                  16.6 will be permitted if the Series A Redemption Price does
                  not equal or exceed $25.00 per Series A Preferred Unit plus
                  the cumulative Series A Priority Return, whether or not
                  declared, to the redemption date to the extent not previously
                  distributed. If fewer than all of the outstanding Series A
                  Preferred Units are to be redeemed, the Series A Preferred
                  Units to be redeemed shall be selected pro rata (as nearly as
                  practicable without creating fractional units).

                           (b)      Limitation on Redemption.

                                    (i)   The Series A Redemption Price of the
                           Series A Preferred Units (other than the portion
                           thereof consisting of accumulated but unpaid
                           distributions) will be payable solely out of the sale
                           proceeds of capital stock of the General Partner,
                           which will be contributed by the General Partner to
                           the Partnership as additional capital contribution,
                           or out of the sale of limited partner interests in
                           the Partnership and from no other source. For
                           purposes of the preceding sentence, "capital stock"
                           means any equity securities (including Common Stock
                           and Preferred Stock (as such terms are defined in the
                           Charter)), shares, participation or other ownership
                           interests (however designated) and any rights (other
                           than debt securities convertible into or exchangeable
                           for equity securities) or options to


                                       12

<PAGE>   13

                           purchase any of the foregoing.

                                    (ii)  The Partnership may not redeem fewer
                           than all of the outstanding Series A Preferred Units
                           unless all accumulated and unpaid distributions have
                           been paid on all Series A Preferred Units for all
                           quarterly distribution periods terminating on or
                           prior to the date of redemption.

                           (c)      Procedures for Redemption.

                                    (i)   Notice of redemption will be (A)
                           faxed, and (B) mailed by the Partnership, by
                           certified mail, postage prepaid, not less than thirty
                           (30) nor more than sixty (60) days prior to the
                           redemption date, addressed to the respective holders
                           of record of the Series A Preferred Units at their
                           respective addresses as they appear on the records of
                           the Partnership. No failure to give or defect in such
                           notice shall affect the validity of the proceedings
                           for the redemption of any Series A Preferred Units
                           except as to the holder to whom such notice was
                           defective or not given. In addition to any
                           information required by law, each such notice shall
                           state: (1) the redemption date, (2) the Series A
                           Redemption Price, (3) the aggregate number of Series
                           A Preferred Units to be redeemed and if fewer than
                           all of the outstanding Series A Preferred Units are
                           to be redeemed, the number of Series A Preferred
                           Units to be redeemed held by such holder, which
                           number shall equal such holder's pro rata share
                           (based on the percentage of the aggregate number of
                           outstanding Series A Preferred Units the total number
                           of Series A Preferred Units held by such holder
                           represents) of the aggregate number of Series A
                           Preferred Units to be redeemed, (4) the place or
                           places where the Series A Preferred Units are to be
                           surrendered for payment of the Series A Redemption
                           Price, (5) that distributions on the Series A
                           Preferred Units to be redeemed will cease to
                           accumulate on such redemption date and (6) that
                           payment of the Series A Redemption Price will be made
                           upon presentation and surrender of such Series A
                           Preferred Units.

                                    (ii)  If the Partnership gives a notice of
                           redemption in respect of Series A Preferred Units
                           (which notice will be irrevocable) then, by 12:00
                           noon, New York City time, on the redemption date, the
                           Partnership will deposit irrevocably in trust with
                           Boston Equiserve, its transfer agent (or any
                           successor entity, provided such entity is a third
                           party, unrelated to the Company and the Partnership)
                           for the benefit of the Series A Preferred
                           Units being redeemed funds sufficient to pay the
                           applicable Series A Redemption Price and will give
                           irrevocable instructions to such transfer


                                       13

<PAGE>   14

                           agent and authority to pay such Series A Redemption
                           Price to the holders of the Series A Preferred Units
                           upon surrender of the Series A Preferred Units by
                           such holders at the place designated in the notice of
                           redemption. If the Series A Preferred Units are
                           evidenced by a certificate and if fewer than all
                           Series A Preferred Units evidenced by any certificate
                           are being redeemed, a new certificate shall be issued
                           upon surrender of the certificate evidencing all
                           Series A Preferred Units, evidencing the unredeemed
                           Series A Preferred Units without cost to the holder
                           thereof. On and after the date of redemption,
                           distributions will cease to accumulate on the Series
                           A Preferred Units or portions thereof called for
                           redemption, unless the Partnership defaults in the
                           payment thereof. If any date fixed for redemption of
                           Series A Preferred Units is not a Business Day, then
                           payment of the Series A Redemption Price payable 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) except
                           that, if such Business Day falls in the next calendar
                           year, such payment will be made on the immediately
                           preceding Business Day, in each case with the same
                           force and effect as if made on such date fixed for
                           redemption. If payment of the Series A Redemption
                           Price is improperly withheld or refused and not paid
                           by the Partnership, distributions on such Series A
                           Preferred Units will continue to accumulate from the
                           original redemption date to the date of payment, in
                           which case the actual payment date will be considered
                           the date fixed for redemption for purposes of
                           calculating the applicable Series A Redemption Price.

                  SECTION 16.7      VOTING RIGHTS.

                           (a)      General. Holders of the Series A Preferred
                  Units will not have any voting rights or right to consent to
                  any matter requiring the consent or approval of the Limited
                  Partners, except as set forth in SECTION 11 (AMENDMENTS) of
                  the Agreement and except as set forth below.

                           (b)      Certain Voting Rights. So long as any Series
                  A Preferred Units remain outstanding, the Partnership shall
                  not, without the affirmative vote of the holders of at least
                  two-thirds of the Series A Preferred Units outstanding at the
                  time (i) (A) authorize or create, or increase the authorized
                  or issued amount of, any class or series of OP Units ranking
                  senior to the Series A Preferred Units with respect to payment
                  of distributions or rights upon liquidation, dissolution or
                  winding-up, or (B) reclassify any OP Units of the Partnership
                  into any such senior OP Units, or (C) create, authorize or
                  issue any obligations or security convertible
                  into or evidencing the right to purchase any such senior OP
                  Units, (ii) (A) authorize or create, or increase the
                  authorized or issued amount of any Parity


                                       14

<PAGE>   15

                  Preferred Units (or any OP Units which purport to be on parity
                  with the Series A Preferred Units as to either (but not both)
                  distributions or rights upon dissolution, liquidation or
                  winding-up), or (B) reclassify any OP Unit into any such
                  Parity Preferred Units (or any OP Units which purport to be on
                  parity with the Series A Preferred Units as to either (but not
                  both) distributions or rights upon dissolution, liquidation or
                  winding-up), or (C) create, authorize or issue any obligation
                  or security convertible into or evidencing the right to
                  purchase any such Parity Preferred Units (or any OP Units
                  which purport to be on parity with the Series A Preferred
                  Units as to either (but not both) distributions or rights upon
                  dissolution, liquidation or winding-up), but only to the
                  extent such Parity Preferred Units (or any OP Units which
                  purport to be on parity with the Series A Preferred Units as
                  to either (but not both) distributions or rights upon
                  dissolution, liquidation or winding-up) are issued to an
                  affiliate (as defined in Section 14) of the Partnership,
                  unless (y) such affiliate is the General Partner and such
                  Parity Preferred Units (or any OP Units which purport to be on
                  parity with the Series A Preferred Units as to either (but not
                  both) distributions or rights upon dissolution, liquidation or
                  winding-up) correspond to preferred shares issued to a
                  nonaffiliate of the Partnership or (z) such Parity Preferred
                  Units (or any OP Units which purport to be on parity with the
                  Series A Preferred Units as to either (but not both)
                  distributions or rights upon dissolution, liquidation or
                  winding-up) are issued upon terms determined by the General
                  Partner's Board of Directors (such determination to include
                  the affirmative approval of a majority of all disinterested
                  directors) to be no more favorable to the holders thereof than
                  those it would offer in an arm's length transaction to an
                  unrelated party; or (iii) either (A) consolidate, merge into
                  or with, or convey, transfer or lease its assets substantially
                  as an entirety to, any corporation or other entity or (B)
                  amend, alter or repeal the provisions of the Agreement,
                  whether by merger, consolidation or otherwise, in each case,
                  that would materially and adversely affect the powers, special
                  rights, preferences, privileges or voting power of the Series
                  A Preferred Units or the holders thereof; provided, however,
                  that with respect to the occurrence of a merger, consolidation
                  or a sale or lease of all of the Partnership's assets as an
                  entirety, so long as (1) the Partnership is the surviving
                  entity and the Series A Preferred Units remain outstanding
                  with the terms thereof unchanged, or (2) the resulting,
                  surviving or transferee entity is a partnership, limited
                  liability company or other pass-through entity, or after a
                  date not sooner than the date which is three (3) years after
                  the date hereof, a corporation (or other nonpass-through
                  entity), in each case, organized under the laws of any state
                  and substitutes the Series A Preferred Units for other
                  interests in such entity having substantially the same terms
                  and rights as the Series A Preferred Units, including with
                  respect to distributions, voting rights and rights upon
                  liquidation, dissolution or winding-up, then the occurrence of
                  any such event shall not be deemed to materially and adversely
                  affect such rights, privileges or voting powers of the holders
                  of the


                                       15

<PAGE>   16

                  Series A Preferred Units.

                  SECTION 16.8      TRANSFER RESTRICTIONS.  The Series A
         Preferred Units shall be subject to the provisions of SECTION 9 of the
         Agreement.

                  SECTION 16.9      EXCHANGE RIGHTS.

                  (a)      Right to Exchange.

                                    (i)   Series A Preferred Units will be
                           exchangeable in whole, but not in part unless
                           expressly otherwise provided herein, at anytime on or
                           after the tenth (10th) anniversary of the date of
                           issuance, at the option of the holders of at least
                           51% of all outstanding Series A Preferred Units, for
                           authorized but previously unissued shares of 9.125%
                           Series A Cumulative Redeemable Preferred Stock of the
                           General Partner (the "SERIES A PREFERRED STOCK") at
                           an exchange rate of one share of Series A Preferred
                           Stock for one Series A Preferred Unit, subject to
                           adjustment as described below (the "SERIES A EXCHANGE
                           PRICE"), provided that the Series A Preferred Units
                           will become exchangeable at any time, in whole, but
                           not in part unless expressly otherwise provided
                           herein, at the option of the holders of at least 51%
                           of all outstanding Series A Preferred Units (x) if at
                           any time full distributions shall not have been made
                           on the Series A Preferred Unit Distribution Payment
                           Date on any Series A Preferred Unit with respect to
                           six (6) prior quarterly distribution periods, whether
                           or not consecutive, provided, however, that a
                           distribution in respect of Series A Preferred Units
                           shall be considered timely made on the Series A
                           Preferred Unit Distribution Payment Date if made
                           within two (2) Business Days after the applicable
                           Series A Preferred Unit Distribution Payment Date if
                           at the time of such late payment there shall not be
                           any prior quarterly distribution periods in respect
                           of which full distributions were made more than two
                           (2) Business Days after the applicable Series A
                           Preferred Unit Distribution Payment Date, or (y) upon
                           receipt by a holder or holders of Series A Preferred
                           Units of (1) notice from the General Partner that the
                           General Partner or a Subsidiary of the General
                           Partner has taken the position that the Partnership
                           is, or upon the occurrence of a defined event in the
                           immediate future will be, a PTP and (2) an opinion
                           rendered by an outside nationally recognized
                           independent counsel familiar with such matters
                           addressed to a holder or holders of Series A
                           Preferred Units, that the Partnership is or likely
                           is, or upon the occurrence of a defined event in the
                           immediate future will be or likely will be, a PTP.

                                    In addition, the Series A Preferred Units
                           may be exchanged for


                                       16

<PAGE>   17

                           Series A Preferred Stock, in whole, but not in part
                           unless expressly otherwise provided herein, at the
                           option of holders of at least 51% of all outstanding
                           Series A Preferred Units prior to the tenth (10th)
                           anniversary of the issuance date and after the third
                           (3rd) anniversary thereof if such holders shall
                           deliver to the General Partner either (i) a private
                           letter ruling addressed to such holder of Series A
                           Preferred Units or (ii) an opinion of independent
                           counsel reasonably acceptable to the General Partner
                           based on the enactment of temporary or final Treasury
                           Regulations or the publication of a Revenue Ruling,
                           in either case to the effect that an exchange of the
                           Series A Preferred Units at such earlier time would
                           not cause the Series A Preferred Units to be
                           considered "stock and securities" within the meaning
                           of Section 351(e) of the Internal Revenue Code for
                           purposes of determining whether the holder of such
                           Series A Preferred Units is an "investment company"
                           under section 721(b) of the Internal Revenue Code if
                           an exchange is permitted at such earlier date.

                                    Additionally, the Series A Preferred Units
                           may be exchanged for Series A Preferred Stock, in
                           whole, but not in part unless expressly otherwise
                           provided herein, at the option of holders of at least
                           51% of all outstanding Series A Preferred Units, at
                           any time after the third (3rd) anniversary of the
                           date hereof, in the event the Partnership merges,
                           consolidates, or sells or leases all of its assets as
                           an entirety, where the resulting, surviving or
                           transferee entity is a corporation or otherwise not a
                           pass-through entity.

                                    Furthermore, the Series A Preferred Units
                           may be exchanged in whole but not in part by any
                           holder thereof which is a real estate investment
                           trust within the meaning of Sections 856 through 859
                           of the Internal Revenue Code for Series A Preferred
                           Stock (but only if the exchange in whole may be
                           accomplished consistently with the ownership
                           limitations set forth under Article VII of the
                           Charter of the General Partner (taking into account
                           exceptions thereto)) if at any time, (i) the
                           Partnership reasonably determines that the assets and
                           income of the Partnership for a taxable year after
                           1999 would not satisfy the income and assets tests of
                           Section 856 of the Internal Revenue Code for such
                           taxable year if the Partnership were a real estate
                           investment trust within the meaning of the Internal
                           Revenue Code or (ii) any such holder of Series A
                           Preferred Units shall deliver to the Partnership and
                           the General Partner an opinion of independent counsel
                           reasonably acceptable to the General Partner to the
                           effect that, based on the assets and income of the
                           Partnership for a taxable year after 1999, the
                           Partnership would not satisfy the income and assets
                           tests of Section 856 of the Internal Revenue Code for
                           such taxable year if


                                       17

<PAGE>   18

                           the Partnership were a real estate investment trust
                           within the meaning of the Internal Revenue Code and
                           that such failure would create a meaningful risk that
                           a holder of the Series A Preferred Units would fail
                           to maintain qualification as a real estate investment
                           trust.

                                    (ii)  Notwithstanding anything to the
                           contrary set forth in SECTION 16.9(A)(I) hereof, if a
                           Series A Exchange Notice (as defined herein) has been
                           delivered to the General Partner, then the General
                           Partner may, at its option, elect to redeem or cause
                           the Partnership to redeem all or a portion of the
                           outstanding Series A Preferred Units for cash in an
                           amount equal to the original capital contribution per
                           Series A Preferred Unit plus all accrued and unpaid
                           distributions thereon to the date of redemption. The
                           General Partner may exercise its option to redeem the
                           Series A Preferred Units for cash pursuant to this
                           SECTION 16.9(A)(II) hereof by giving each holder of
                           record of Series A Preferred Units notice of its
                           election to redeem for cash, within five (5) Business
                           Days after receipt of the Series A Exchange Notice,
                           by (m) fax, and (n) registered mail, postage paid, at
                           the address of each holder as it may appear on the
                           records of the Partnership stating (A) the redemption
                           date, which shall be no later than sixty (60) days
                           following the receipt of the Series A Exchange
                           Notice, (B) the redemption price, (C) the place or
                           places where the Series A Preferred Units are to be
                           surrendered for payment of the redemption price, (D)
                           that distributions on the Series A Preferred Units
                           will cease to accrue on such redemption date; (E)
                           that payment of the redemption price will be made
                           upon presentation and surrender of the Series A
                           Preferred Units and (F) the aggregate number of
                           Series A Preferred Units to be redeemed, and if fewer
                           than all of the outstanding Series A Preferred Units
                           are to be redeemed, the number of Series A Preferred
                           Units to be redeemed held by such holder, which
                           number shall equal such holder's pro-rata share
                           (based on the percentage of the aggregate number of
                           outstanding Series A Preferred Units the total number
                           of Series A Preferred Units held by such holder
                           represents) of the aggregate number of Series A
                           Preferred Units being redeemed.

                                    (iii) In the event an exchange of all or a
                           portion of Series A Preferred Units pursuant to
                           SECTION 16.9(A)(I) hereof would violate the
                           provisions on ownership limitation of the General
                           Partner set forth in Article VII of the Charter with
                           respect to the Series A Preferred Stock, the
                           General Partner shall give written notice thereof to
                           each holder of record of Series A Preferred Units,
                           within five (5) Business Days following receipt of
                           the Series A Exchange Notice, by (m) fax, and (n)
                           registered mail, postage prepaid, at the address of
                           each such holder set forth in the


                                       18

<PAGE>   19

                           records of the Partnership. In such event, each
                           holder of Series A Preferred Units shall be entitled
                           to exchange, pursuant to the provision of SECTION
                           16.9(B) a number of Series A Preferred Units which
                           would comply with the provisions on the ownership
                           limitation of the General Partner set forth in such
                           Article VII of the Charter and any Series A Preferred
                           Units not so exchanged (the "EXCESS SERIES A UNITS")
                           shall be redeemed by the Partnership for cash in an
                           amount equal to the original capital contribution per
                           Excess Series A Unit, plus any accrued and unpaid
                           distributions thereon, whether or not declared, to
                           the date of redemption. The written notice of the
                           General Partner shall state (A) the number of Excess
                           Series A Units held by such holder, (B) the
                           redemption price of the Excess Series A Units, (C)
                           the date on which such Excess Series A Units shall be
                           redeemed, which date shall be no later than sixty
                           (60) days following the receipt of the Series A
                           Exchange Notice, (D) the place or places where such
                           Excess Series A Units are to be surrendered for
                           payment of the Series A Redemption Price, (E) that
                           distributions on the Excess Series A Units will cease
                           to accrue on such redemption date, and (F) that
                           payment of the redemption price will be made upon
                           presentation and surrender of such Excess Series A
                           Units. In the event an exchange would result in
                           Excess Series A Units, as a condition to such
                           exchange, each holder of such units agrees to provide
                           representations and covenants reasonably requested by
                           the General Partner relating to (1) the widely held
                           nature of the interests in such holder, sufficient to
                           assure the General Partner that the holder's
                           ownership of stock of the General Partner will not
                           cause any individual to own the stock of the General
                           Partner in excess of the Ownership Limit (as defined
                           in the Charter); and (2) to the extent such holder
                           can so represent and covenant without obtaining
                           information from its owners, the holder's ownership
                           of tenants of the Partnership and its affiliates (as
                           defined in Section 14).

                                    (iv)  The redemption of Series A Preferred
                           Units described in SECTION 16.9(A)(II) and (III)
                           shall be subject to the provisions of SECTION
                           16.6(B)(I) and SECTION 16.6(C)(II); provided,
                           however, that the term "Series A Redemption Price" in
                           such Section shall be read to mean the original
                           capital contribution per Series A Preferred Unit
                           being redeemed plus all accrued and unpaid
                           distributions to the redemption date.

                           (b)      Procedure for Exchange.
                                    (i)   Any exchange shall be exercised
                           pursuant to a notice of exchange (the "SERIES A
                           EXCHANGE NOTICE") delivered to the General Partner by
                           the holder who is exercising such exchange right, by
                           (A) fax and (B) by certified mail postage prepaid.
                           The exchange of Series A

                                       19

<PAGE>   20

                           Preferred Units, or a specified portion thereof, may
                           be effected after the fifth (5th) Business Day
                           following receipt by the General Partner of the
                           Series A Exchange Notice by delivering certificates,
                           if any, representing such Series A Preferred Units to
                           be exchanged together with, if applicable, written
                           notice of exchange and a proper assignment of such
                           Series A Preferred Units to the office of the General
                           Partner maintained for such purpose. Currently, such
                           office is:

                                         Sun Communities, Inc.
                                         Suite 145
                                         31700 Middlebelt Road
                                         Farmington Hills, Michigan 48334.

                           Each exchange will be deemed to have been effected
                           immediately prior to the close of business on the
                           date on which such Series A Preferred Units to be
                           exchanged (together with all required documentation)
                           shall have been surrendered and notice shall have
                           been received by the General Partner as aforesaid and
                           the Series A Exchange Price shall have been
                           delivered. Any Series A Preferred Stock issued
                           pursuant to this SECTION 16.9 shall be delivered as
                           shares which are duly authorized, validly issued,
                           fully paid and nonassessable, free of pledge, lien,
                           encumbrance or restriction other than those provided
                           in the Charter, the Bylaws of the General Partner,
                           the Securities Act of 1933, as amended and relevant
                           state securities or blue sky laws.

                                    (ii)  In the event of an exchange of Series
                           A Preferred Units for shares of Series A Preferred
                           Stock, an amount equal to the accrued and unpaid
                           distributions, whether or not declared, to the date
                           of exchange on any Series A Preferred Units tendered
                           for exchange shall (A) accrue on the shares of the
                           Series A Preferred Stock into which such Series A
                           Preferred Units are exchanged, and (B) continue to
                           accrue on such Series A Preferred Units, which shall
                           remain outstanding following such exchange, with the
                           General Partner as the holder of such Series A
                           Preferred Units. Notwithstanding anything to the
                           contrary set forth herein, in no event shall a holder
                           of a Series A Preferred Unit that was validly
                           exchanged into Series A Preferred Stock pursuant to
                           this section (other than the General Partner now
                           holding such Series A Preferred Unit), receive a cash
                           distribution out of available cash of the
                           Partnership, if such holder, after exchange, is
                           entitled to receive a distribution with respect to
                           the share of Series A Preferred Stock for which such
                           Series A Preferred Unit was exchanged or redeemed.

                                       20

<PAGE>   21





                                    (iii) Fractional shares of Series A
                           Preferred Stock are not to be issued upon exchange
                           but, in lieu thereof, the General Partner will pay a
                           cash adjustment based upon the fair market value of
                           the Series A Preferred Stock on the day prior to the
                           exchange date as determined in good faith by the
                           Board of Directors of the General Partner.

                           (c)      Adjustment of Series A Exchange Price.

                                    (i)   The Exchange Price is subject to
                           adjustment upon subdivisions, stock splits, stock
                           dividends, combinations and reclassification of the
                           Series A Preferred Stock.

                                    (ii)  In case the General Partner shall be a
                           party to any transaction (including, without
                           limitation, a merger, consolidation, statutory share
                           exchange, tender offer for all or substantially all
                           of the General Partner's capital stock or sale of all
                           or substantially all of the General Partner's
                           assets), in each case as a result of which the Series
                           A Preferred Stock will be converted into the right to
                           receive shares of capital stock, other securities or
                           other property (including cash or any combination
                           thereof), each Series A Preferred Unit will
                           thereafter be exchangeable into the kind and amount
                           of shares of capital stock and other securities and
                           property receivable (including cash or any
                           combination thereof) upon the consummation of such
                           transaction by a holder of that number of shares of
                           Series A Preferred Stock or fraction thereof into
                           which one Series A Preferred Unit was exchangeable
                           immediately prior to such transaction. The General
                           Partner may not become a party to any such
                           transaction unless the terms thereof are consistent
                           with the foregoing.

                  SECTION 16.10 NO CONVERSION RIGHTS. The holders of the Series
         A Preferred Units shall not have any rights to convert such units into
         shares of any other class or series of stock or into any other
         securities of, or interest in, the Partnership or the General Partner,
         except for Series A Preferred Stock.

                  SECTION 16.11 NO SINKING FUND.  No sinking fund shall be
         established for the retirement or redemption of Series A Preferred
         Units.

         11.      Governing Law. This Amendment shall be interpreted and
enforced according to the laws of the State of Michigan.

         12.      Full Force and Effect. Except as amended by the provisions
hereof, the Agreement, as previously amended, shall remain in full force and
effect in accordance with its terms and is hereby ratified, confirmed and
reaffirmed by the undersigned for all purposes and in all respects.


                                       21

<PAGE>   22


         13.      Successors/Assigns. This Amendment shall be binding upon and
shall inure to the benefit of the parties hereto, their respective legal
representatives, successors and assigns.

         14.      Counterparts. This Amendment may be executed in counterparts,
all of which together shall constitute one agreement binding on all the parties
hereto, notwithstanding that all such parties are not signatories to the
original or the same counterpart.








                        (SIGNATURES APPEAR ON NEXT PAGE)






                                       22

<PAGE>   23



         IN WITNESS WHEREOF, the undersigned has executed this Amendment as of
the day and year first above written.

                                      GENERAL PARTNER

                                      SUN COMMUNITIES, INC.


                                      By /s/ Jeffrey P. Jorissen
                                         ---------------------------------------
                                         Name:  Jeffrey P. Jorissen
                                         Title: Senior Vice President









                       (SIGNATURES CONTINUE ON NEXT PAGE)




                                       23

<PAGE>   24

                                      NEW LIMITED PARTNERS

                                      BELCREST REALTY CORPORATION


                                      By      /s/ William R. Cross
                                         ---------------------------------------
                                              Name:   William R. Cross
                                              Title: Vice President


                                      BELAIR REAL ESTATE CORPORATION


                                      By      /s/ William R. Cross
                                         ---------------------------------------
                                              Name:   William R. Cross
                                              Title: Vice President





                                       24

<PAGE>   25

                                    EXHIBIT A

               SCHEDULE OF PARTNERS, OP UNITS, PREFERRED OP UNITS
                                       AND
                            SERIES A PREFERRED UNITS

<TABLE>
<CAPTION>

                                                                                                        SERIES A
PARTNERS                                                 COMMON                 PREFERRED             PREFERRED
- --------                                                 OP UNITS                OP UNITS                UNITS
                                                         --------                --------                -----

<S>                                                   <C>                      <C>                     <C>
General Partner
Sun Communities, Inc., a Maryland                       17,433,258
Corporation
31700 Middlebelt Road
Suite 145
Farmington Hills, Michigan 48334

Limited Partners
Gary A. Shiffman                                           306,617
31700 Middlebelt Road
Suite 145
Farmington Hills, Michigan 48334

Robert B. Bayer                                            133,115
31700 Middlebelt Road
Suite 145
Farmington Hills, Michigan 48334

Water Oak, Ltd.                                              8,888
Winderweedle, Haines Ward &
Woodman, P.A.
250 Park Avenue, South, 5th Floor
Winter Park, Florida 32789-4388

Albert P. Gollob                                            25,000
380 North Woodward Avenue
Suite 206
Birmingham, Michigan 48009

John F. O'Shea, as Trustee of the                           28,000
John F. O'Shea Declaration of Trust
created under instrument dated
January 2, 1996
380 North Woodward Avenue
Suite 206
</TABLE>




                                       25

<PAGE>   26

<TABLE>
<CAPTION>
                                                                                                        SERIES A
PARTNERS                                                 COMMON                 PREFERRED             PREFERRED
- --------                                                 OP UNITS                OP UNITS                UNITS
                                                         --------                --------                -----
<S>                                                     <C>                    <C>                     <C>
Birmingham, Michigan 48009
Carmen O'Shea                                             22,000
380 North Woodward Avenue
Suite 206
Birmingham, Michigan 48009

Henry S. Gornbein                                          6,126
Shapack, McCullough & Kanter,
P.C.
4190 Telegraph Road
Suite 3000
Bloomfield Hills, Michigan 48302-
2082

Robert J. Peters                                           7,747
40126 Pallazzo Street
Clinton Township, Michigan 48038

Nancy Kolender                                             6,126
3130 West Long Lake Road
Orchard Lake, Michigan 48323

Terran Shiffman Leemis                                    25,000
876 Covington
Bloomfield Hills, Michigan 48301

Gail Shiffman Hennes                                      17,500
14086 Ludlow
Oak Park, Michigan 48237

Audrey Shiffman                                           17,500
(formerly Audrey Shiffman
Langmaid)
2820 69th S.E.
Mercier Island, Washington 98040

Gary A. Shiffman as custodian for                          1,000
Matthew Shiffman under UGMA
31700 Middlebelt Road, Suite 145
Farmington Hills, Michigan 48334

Gary A. Shiffman as custodian for                          1,000
Adam Shiffman under UGMA
31700 Middlebelt Road, Suite 145
Farmington Hills, Michigan 48334

Gary A. Shiffman as custodian for                          1,000
</TABLE>



                                       26

<PAGE>   27

<TABLE>
<CAPTION>
                                                                                                        SERIES A
PARTNERS                                                 COMMON                 PREFERRED             PREFERRED
- --------                                                 OP UNITS                OP UNITS                UNITS
                                                         --------                --------                -----
<S>                                                     <C>                    <C>                     <C>
Alex Shiffman under UGMA
31700 Middlebelt Road, Suite 145
Farmington Hills, Michigan 48334

Audrey Shiffman (formerly Audrey                          1,000
Shiffman Langmaid) as custodian for
Jessica Langmaid under UGMA
2829 69th S.E.
Mercier Island, Washington 98040

Audrey Shiffman (formerly Audrey                          1,000
Shiffman Langmaid) as custodian for
Elizabeth Langmaid under UGMA
2829 69th S.E.
Mercier Island, Washington 98040

Gail Shiffman Hennes as custodian                         1,000
for Asher Hennes under UGMA
14086 Ludlow
Oak Park, Michigan 48237

Gail Shiffman Hennes as custodian                         1,000
for Rina Hennes under UGMA
14086 Ludlow
Oak Park, Michigan 48237

Terran Shiffman Leemis as custodian                         875
for Jennifer Leemis under UGMA
876 Covington
Bloomfield Hills, Michigan 48301

Terran Shiffman Leemis as custodian                         875
for Rachel Leemis under UGMA
876 Covington
Bloomfield Hills, Michigan 48301

Sherman Simon                                            25,005
9999 Collins Avenue
Bal Harbour, Florida 33154

Gerard Berger                                            20,607
10425 SW 129th Terrace
Miami, Florida 33176

Gerard Berger, Nominee                                    4,942
10425 SW 129th Terrace
Miami, Florida 33176

</TABLE>



                                       27

<PAGE>   28

<TABLE>
<CAPTION>
                                                                                                        SERIES A
PARTNERS                                                 COMMON                 PREFERRED             PREFERRED
- --------                                                 OP UNITS                OP UNITS                UNITS
                                                         --------                --------                -----
<S>                                                     <C>                    <C>                     <C>
Robert Sentz                                              15,811
1287 Pigeon Roost Road
Pulaski, TN 38478

Royal Country, Ltd., a Florida ltd                        20,420
partnership
c/o Gerard Berger
501 Brickell Key Drive, Suite 103
Miami, Florida 33131

Paul Simon                                                17,955
3041 North 34th Street
Hollywood, Florida 33021

SI Enterprises, Inc.,                                     56,893
a Florida corporation
501 Brickell Key Drive, Suite 103
Miami, Florida 33131

J.B.E. Inc., a Florida corporation                        41,071
501 Brickell Key Drive, Suite 103
Miami, Florida 33131

S.R.K. Financial, Inc.,                                   27,676
a Florida corporation
501 Brickell Key Drive, Suite 103
Miami, Florida 33131

Mr. Herbert Rosen                                         25,000
4001 North Ocean Boulevard #804
Boca Raton, Florida 33431

Louis Benson, Trustee                                     26,931
5701 Bayberry Lane
Tamarac, Florida 33319

Philip Benson                                              4,489
8 Bruns Road
West Allenhurst, NJ 07711-1400

Irwin Cantor                                               2,846
#2 Bay Club Drive
Apt. 21W
Bayside, NY  11360

Robin Fuchs                                                4,489
P.O. Box 2520
Nantucket, MA  02584
</TABLE>


                                       28

<PAGE>   29

<TABLE>
<CAPTION>
                                                                                                        SERIES A
PARTNERS                                                 COMMON                 PREFERRED             PREFERRED
- --------                                                 OP UNITS                OP UNITS                UNITS
                                                         --------                --------                -----
<S>                                                     <C>                    <C>                     <C>
Jacob Glouberman                                          3,646
300 Winston Drive
Cliffside Park, NJ 07010

Robert Helfand                                            7,293
APD0202
San Miguel Day Allende
GTO, 37700 Mexico

Eugene W. Kalkin                                         14,308
18 Pfizer Road
Bernardsville, NJ 07924

Morton Kaplan                                             4,994
18 Yale Drive
Manhassett, NY 11030

Saul Klaw                                                 3,646
275 Madison Avenue
New York, NY 10016

Stanley C. Lesser                                        10,662
Lesser & Harrison
2 West 45th Street
New York, NY 10036

Ysrael Seinuk                                             3,646
82 Tennis Place
Forest Hills, NY 11375-5163

Julius J. Shepard Revocable Trust                        61,080
c/o Dupont Plaza Hotel
300 Biscayne Boulevard, Suite 307
Miami, Florida 33131-2207

Miriam Simon, as Custodian for                            2,917
Brian Simon
3041 North 34th Street
Hollywood, Florida 33021

Miriam Simon, as Custodian for                            2,917
Richard Simon
3041 North 34th Street
Hollywood, Florida 33021

Jeffrey Simon, as Custodian for Peter                     2,917
Simon
8915 SW 163rd Terrace
</TABLE>


                                       29

<PAGE>   30

<TABLE>
<CAPTION>
                                                                                                        SERIES A
PARTNERS                                                 COMMON                 PREFERRED             PREFERRED
- --------                                                 OP UNITS                OP UNITS                UNITS
                                                         --------                --------                -----
<S>                                                     <C>                    <C>                     <C>
Miami, Florida 33157

Victor Matles                                             10,110
P.O. Box 8493
Coral Springs, Florida 33075-8493

Leonard Cooper                                             1,348
3 Lisa Drive
Dix Hills, NY 11746

Ofelia Glouberman                                          1,348
300 Winston Drive
Cliffside Park, NJ 07010

Adam Kalkin                                                1,685
18 Pfizer Road
Bernardsville, NJ 07924

Nancy Kalkin                                               1,685
18 Pfizer Road
Bernardsville, NJ 07924

Lawrence Kline                                               898
Kline, Moore & Klein
2665 South Bayshore Drive
Suite 903
Coconut Grove, Florida 33133

Robert Kline                                                 898
Kline, Moore & Klein
2665 South Bayshore Drive
Suite 903
Coconut Grove, Florida 33133

James Lyons                                                4,813
120 Lincoln Road
Winter Haven, Florida 33884

Fanny Seinuk                                               1,348
82 Tennis Place
Forest Hills, NY 11375-5163

HTR Associates, Inc.                                       6,738
a Florida corporation
501 Brickell Key Drive
Suite 103
Miami, Florida 33131

Steven M. Tracy, as Trustee of the                       210,458
</TABLE>



                                       30

<PAGE>   31

<TABLE>
<CAPTION>
                                                                                                        SERIES A
PARTNERS                                                 COMMON                 PREFERRED             PREFERRED
- --------                                                 OP UNITS                OP UNITS                UNITS
                                                         --------                --------                -----
<S>                                                     <C>                     <C>                    <C>
Steven M. Tracy Declaration of Trust
dated June 25, 1984
1765 Cypress Point Court
Ann Arbor, Michigan 48108

Steven M. Tracy, as Successor                            420,917
Trustee of the Phil F. Jenkins
Revocable Living Trust created
under agreement dated January 6,
1967, as amended
2041 Greenview Drive
Ann Arbor, Michigan 48103

Howard T. Rice, as Trustee of the                          4,500
Howard T. Rice Revocable Living
Trust created under agreement dated
March 10, 1967, as amended
4605 S. Ocean Blvd.
Suite 7D
Highland Beach, FL  33487

Ronald A. House and                                        5,056                    41,456
Joanne K. House,
Joint Tenants
1651 Chateau Dr, S.W.
Wyoming, Michigan  49509-4914

Robert L. Kramer and                                       5,056                    32,497
Ruth A. Kramer,
Trustees of the Robert L. Kramer
Trust U/T/A dated August 7, 1996
421 Buena Vista Drive
Spring Lake, Michigan  49456-1734

Charles R. Negley and Carroll S.                           5,056                    39,110
Negley,
Joint Tenants
9930 Caloosa Yacht & Racquet
Drive
Fort Myers, Florida  33919-3169

The J. Lanting Family Limited                                                       21,953
Partnership
5999 Hillsborough Court
</TABLE>



                                       31

<PAGE>   32

<TABLE>
<CAPTION>
                                                                                                        SERIES A
PARTNERS                                                 COMMON                 PREFERRED             PREFERRED
- --------                                                 OP UNITS                OP UNITS                UNITS
                                                         --------                --------                -----
<S>                                                     <C>                     <C>                    <C>
Grandville, Michigan 49418

Todd Lanting                                                                       10,866
6185 S. Routt
Littleton, CO  80127

Julie Lanting                                                                      10,866
856 Clarewood Ct.
Holland, Michigan 49423

Arlyn Lanting                                                                         221
1575 South Shore Drive
Holland, Michigan 49423

Vicki Essink                                                                       10,866
1069 Alden Court
Holland, Michigan 49423

Jaclyn Geerlings                                                                   10,866
557 Jasmine Drive
Holland, Michigan 49423

Lee DeVisser and Linda L.                                                           3,925
DeVisser, Co-Trustees of the Lee
DeVisser Revocable Trust Created
U/T/A dated 1/4/93
2480 53rd Street N.W.
Boca Raton, FL  33496

Tracy L. Decker                                                                    17,343
15341 Meadowwood
Grand Haven, Michigan 49417

Marlene Q. Helm                                                                     2,195
1301 Summac
Muskegon, Michigan 49445

Brian K. Orcutt                                                                     2,195
679 Lake Drive, S.E., Apt. #4
Grand Rapids, Michigan 49503

Ronald L. Piasecki                                       17,000                       220
17854 W. Spring Lake Road
Spring Lake, Michigan  49456

James R. Lanting                                                                    3,704
5999 Hillsborough Court
Grandville, Michigan  49418

Aspen Enterprises, Ltd.                                                           100,455
</TABLE>




                                       32

<PAGE>   33

<TABLE>
<CAPTION>
                                                                                                        SERIES A
PARTNERS                                                 COMMON                 PREFERRED             PREFERRED
- --------                                                 OP UNITS                OP UNITS                UNITS
                                                         --------                --------                -----
<S>                                                     <C>                     <C>                    <C>
2757 44th Street, S.W.
Suite 306
Grand Rapids, Michigan  49509

Aspen Group                                               55,556                  364,819
2757 44th Street, S.W.
Suite 306

Grand Rapids, Michigan  49509
Aspen-Brentwood Village Limited                                                     5,911
Partnership
2757 44th Street, S.W.
Suite 306
Grand Rapids, Michigan  49509

Aspen-West Michigan Investments                                                     9,259
L.L.C., 2757 44th Street, S.W.
Suite 306
Grand Rapids, Michigan  49509

Aspen Group-HE                                                                     42,827
2757 44th Street, S.W.
Suite 306
Grand Rapids, Michigan  49509

Aspen - Grand Estates Limited                                                       4,433
Partnership
2757 44th Street, S.W.
Suite 306
Grand Rapids, Michigan 49509

FC Group                                                                          201,411
2757 44th Street, S.W.
Suite 306
Grand Rapids, Michigan 49509

Aspen Group-KC                                            83,943                  124,920
2757 44th Street, S.W.
Suite 306
Grand Rapids, Michigan  49509

Aspen-Paradise Investment Limited                                                  18,210
Partnership
2757 44th Street, S.W.
Suite 306
</TABLE>



                                       33

<PAGE>   34

<TABLE>
<CAPTION>
                                                                                                        SERIES A
PARTNERS                                                 COMMON                 PREFERRED             PREFERRED
- --------                                                 OP UNITS                OP UNITS                UNITS
                                                         --------                --------                -----
<S>                                                     <C>                     <C>                    <C>
Grand Rapids, Michigan 49509

Aspen-Arbor Investment Limited                                                     16,293
Partnership
Suite 306
2757 44th Street, S.W.
Grand Rapids, Michigan  49509

Aspen-Breezy Hill II Limited                                                       58,199
Partnership
Suite 306
2757 44th Street, S.W.
Grand Rapids, Michigan  49509

Aspen-Indian Investment Limited                                                    30,766
Partnership
Suite 306
2757 44th Street, S.W.
Grand Rapids, Michigan 49509

Aspen- Silver Investment Limited                                                   20,834
Partnership
2757 44t Street, S.W.
Suite 306
Grand Rapids, Michigan 49509

Aspen-Bonita Investment Limited                                                    42,673
Partnership
2757 44th Street, S.W.
Suite 306
Grand Rapids, Michigan 49509

Aspen-Siesta Investment Limited                                                    75,982
Partnership
Suite 306
2757 44th Street, S.W.
Grand Rapids, Michigan 49509

Joyce L. Gollob                                           25,000
380 North Woodward Avenue, Suite
206
Birmingham, Michigan 48009

Margaret A. Bayer                                          7,747
5879 Seville Circle
Orchard Lake, MI  48324
</TABLE>



                                       34

<PAGE>   35

<TABLE>
<CAPTION>
                                                                                                        SERIES A
PARTNERS                                                 COMMON                 PREFERRED             PREFERRED
- --------                                                 OP UNITS                OP UNITS                UNITS
                                                         --------                --------                -----
<S>                                                     <C>                     <C>                    <C>
Carol P. Hearne                                           7,747
49373 Chesterfield Court
Shelby, MI  48315

Karen Matles                                              1,000
395 NW 101st Terrace
Coral Springs, FL  33071

Harold Matles                                               300
24 Sherwood Rd.
West Hartford, CT  06117

Linda Schiavoni                                             300
10 Cove Road
Sag Harbor, NY 11963

Judith Pendrick                                             300
24501 Falena Avenue
Torrance, CA  90501

Keith D. Smith                                          107,133
9241 Potter Road
Davison, MI  48423

Susan K. Smith                                           38,221
13015 Sandhurst Court
Grand Blanc, MI  48439

Kelly M. Karr                                             5,672
650 Kingswood Avenue
Eugene, Oregon  97401

Milton M. Shiffman                                      311,794
31700 Middlebelt Road
Suite 145
Farmington Hills, Michigan 48334

Anders I, LLC                                            13,158
361 71st Avenue
Greeley, CO  80634

Jeffrey P. Jorissen                                     100,000
c/o Sun Communities
31700 Middlebelt Road
Suite 145
Farmington Hills, Michigan 48334

Brian W. Fannon                                          30,000
c/o Sun Communities
</TABLE>




                                       35

<PAGE>   36

<TABLE>
<CAPTION>
                                                                                                        SERIES A
PARTNERS                                                 COMMON                 PREFERRED             PREFERRED
- --------                                                 OP UNITS                OP UNITS                UNITS
                                                         --------                --------                -----
<S>                                                     <C>                     <C>                    <C>
31700 Middlebelt Road
Suite 145
Farmington Hills, Michigan 48334

Jonathan M. Colman                                        7,500
c/o Sun Communities
31700 Middlebelt Road
Suite 145
Farmington Hills, Michigan 48334

Helene A. Lewis                                           4,000
c/o Sun Communities
31700 Middlebelt Road
Suite 145
Farmington Hills, Michigan 48334

Clunet R. Lewis                                          20,000
c/o Eltrax Systems, Inc.
2000 Town Center, Suite 690
Southfield, MI  48075

Arthur A. Weiss                                          50,000
c/o Jaffe, Raitt, Heuer & Weiss
1 Woodward Avenue, Suite 2400
Detroit, MI  48226

Ira J. Jaffe                                              6,300
c/o Jaffe, Raitt, Heuer & Weiss
1 Woodward Avenue, Suite 2400
Detroit, MI  48226

Jeffrey G. Heuer                                          9,500
c/o Jaffe, Raitt, Heuer & Weiss
1 Woodward Avenue, Suite 2400
Detroit, MI  48226

Brian M. Hermelin                                        35,000
20500 Civic Center Drive, Suite
3000
Southfield, MI 48076

Robert H. Orley                                          35,000
2000 N. Woodward Avenue
Suite 130
Bloomfield Hills, MI 48304

Daniel E. Bober                                          15,000
</TABLE>



                                       36

<PAGE>   37

<TABLE>
<CAPTION>
                                                                                                        SERIES A
PARTNERS                                                 COMMON                 PREFERRED             PREFERRED
- --------                                                 OP UNITS                OP UNITS                UNITS
                                                         --------                --------                -----
<S>                                                     <C>                     <C>                  <C>
39047 Geneva
Farmington Hills, MI 48331

Creighton J. Weber                                        5,000
5240 Hollow Drive
Bloomfield Hills, MI 48302

James A. Simpson                                          4,725
1235 Lyonhurst
Birmingham, MI 48009

Belcrest Realty Corporation                                                                            1,400,000
c/o Eaton Vance Management
The Eaton Vance Building
255 State Street
Boston, MA 02109

Belair Real Estate Corporation                                                                           600,000
c/o Eaton Vance Corporation
The Eaton Vance Building
255 State Street
Boston, MA 02109
</TABLE>





                                       37

<PAGE>   1
                                                                    EXHIBIT 99.3

                          REGISTRATION RIGHTS AGREEMENT


         THIS REGISTRATION RIGHTS AGREEMENT (this "AGREEMENT"), dated as of
September 29, 1999, is entered into by and between SUN COMMUNITIES, INC., a
Maryland corporation (the "COMPANY"), and BELCREST REALTY CORPORATION, a
Delaware corporation ("BELCREST") and BELAIR REAL ESTATE CORPORATION, a Delaware
corporation ("BELAIR"; and together with Belcrest, the "CONTRIBUTORS").

                                    RECITALS

         WHEREAS, in connection with the offering of 3,000,000 9.125% Series A
Cumulative Redeemable Preferred Units (the "SERIES A PREFERRED UNITS") of Sun
Communities Operating Limited Partnership, a Michigan limited partnership (the
"OPERATING PARTNERSHIP"), Contributors contributed to the Operating Partnership
$50,000,000 in return for the Series A Preferred Units on terms and conditions
set forth in the Contribution Agreement, dated as of the date hereof, by and
among Belair, Belcrest, the Company and the Operating Partnership (the
"CONTRIBUTION AGREEMENT");

         WHEREAS, the Contributors will receive the Series A Preferred Units in
exchange for cash contributed to the Operating Partnership;

         WHEREAS, pursuant to that certain Second Amended and Restated Limited
Partnership Agreement of the Operating Partnership, dated as of April 30, 1996,
as amended by (i) those certain amendments numbered one through one hundred two,
and (ii) that certain One Hundred Third Amendment to the Second Amended and
Restated Limited Partnership Agreement of the Operating Partnership, dated as of
the date hereof, and as further amended from time to time (collectively, as
amended, the "AGREEMENT OF LIMITED PARTNERSHIP"), the Series A Preferred Units
owned by the Contributors or their successors and assigns will be redeemable for
cash or exchangeable for shares of the Company's 9.125% Series A Cumulative
Redeemable Preferred Stock (the "PREFERRED STOCK") upon the terms and subject to
the conditions contained therein; and

         WHEREAS, in order to induce the Contributors to enter into the
Contribution Agreement, the Company has agreed to enter into this Agreement and
to provide registration rights set forth herein to the Contributors and any
subsequent holder or holders of the Series A Preferred Units and Registrable
Securities (as hereinafter defined).

         NOW, THEREFORE, in consideration of the premises and the mutual
agreements herein contained, and for good and valuable consideration, the
receipt and sufficiency of which are hereby acknowledged, the parties hereto
agree as follows:





<PAGE>   2



         1.       DEFINITIONS.

         As used in this Agreement, the following capitalized defined terms
shall have the following meanings:

                  "AFFILIATE" shall mean, when used with respect to a specified
         Person, another Person that directly, or indirectly through one or more
         intermediaries, controls or is controlled by or is under common control
         with the Person specified.

                  "AGREEMENT" shall have the meaning set forth in the preamble.

                  "AGREEMENT OF LIMITED PARTNERSHIP" shall have the meaning set
         forth therefor in the Recitals.

                  "BELAIR" shall have the meaning set forth in the preamble.

                  "BELCREST" shall have the meaning set forth in the preamble.

                  "CLOSING DATE" shall mean the date of closing of the Operating
         Partnership's sale of Series A Preferred Units to the Contributors.

                  "COMPANY" shall have the meaning set forth in the preamble and
         shall also include the Company's successors or other parties who
         succeed to the Company's obligations hereunder.

                  "CONTRIBUTION AGREEMENT" shall have the meaning set forth in
         the preamble.

                  "CONTRIBUTORS" shall have the meaning set forth in the
         preamble and shall include their successors and permitted assigns.

                  "EXCHANGE ACT" shall mean the Securities Exchange Act of 1934,
         as amended, and any successor statute thereto, and the rules and
         regulations of the SEC thereunder, all as the same shall be in effect
         at the relevant time.

                  "HOLDER" shall mean (i) any Contributor or (ii) any Person
         holding Registrable Securities as a result of a transfer or assignment
         of Registrable Securities to that Person other than pursuant to an
         effective Registration Statement or Rule 144 under the Securities Act,
         in each case where securities sold in such transaction may be resold in
         a public distribution without subsequent registration under the
         Securities Act, and together the Persons described in clauses (i) and
         (ii) hereof shall be "HOLDERS".

                  "INDEMNIFIED PARTY" shall have the meaning set forth in
         SECTION 7(C) hereof.



                                       -2-

<PAGE>   3



                  "INDEMNIFYING PARTY" shall have the meaning set forth in
         SECTION 7(C) hereof.

                  "OPERATING PARTNERSHIP" shall have the meaning set forth
         therefor in the Recitals.

                  "PERSON" shall mean an individual, partnership, corporation,
         trust, or unincorporated organization, or government or agency or
         political subdivision thereof.

                  "PIGGYBACK REGISTRATION" shall have the meaning set forth in
         SECTION 2(C) hereof.

                  "PREFERRED STOCK" shall have the meaning set forth therefor in
         the Recitals.

                  "PRIMARY REGISTRATION" shall have the meaning set forth in
         SECTION 2(C) hereof.

                  "PROSPECTUS" shall mean the prospectus included in a
         Registration Statement, including any preliminary Prospectus, and any
         such Prospectus as amended or supplemented by any prospectus supplement
         with respect to the terms of the offering of any portion of the
         Registrable Securities covered by a Registration Statement, and by all
         other amendments and supplements to such Prospectus, including
         post-effective amendments, and in each case including all material
         incorporated by reference therein.

                  "REGISTERING HOLDERS" shall have the meaning set forth in
         SECTION 2(B) hereof.

                  "REGISTRABLE SECURITIES" shall mean (i) the shares of
         Preferred Stock issued by the Company to the holders of the Series A
         Preferred Units in exchange for the Series A Preferred Units and (ii)
         any securities issued or issuable with respect to the Preferred Stock
         issued in exchange for the Series A Preferred Units by way of a stock
         split or stock dividend or in connection with a combination of shares
         recapitalization, merger, consolidation or other reorganization;
         provided, however, that the securities listed above shall cease to be
         Registrable Securities to the extent that (i) a Registration Statement
         with respect to such securities shall have been declared effective
         under the Securities Act and remains effective as provided herein, (ii)
         such securities are eligible for resale in a public distribution
         pursuant to Rule 144 without holding periods or volume limitations
         (iii) such securities have been disposed of pursuant to such
         Registration Statement, or (iv) such shares have been otherwise
         transferred pursuant to an applicable exemption under the Securities
         Act, new certificates for such securities not bearing a legend
         restricting further transfer shall have been delivered by the Company
         and such securities shall be freely transferable to the public in a
         transaction that would constitute a sale thereof without registration
         under the Securities Act.

                  "REGISTRATION EXPENSES" shall mean any and all expenses
         incident to the Company's performance of or compliance with this
         Agreement, including without limitation: (i) all SEC, stock exchange or
         National Association of Securities Dealers, Inc.


                                       -3-

<PAGE>   4


         ("NASD") registration, listing and filing fees, (ii) all reasonable
         fees and expenses incurred in connection with compliance with federal
         or state securities or blue sky laws (including reasonable fees and
         disbursements of counsel for any Underwriters and one counsel
         (reasonably acceptable to Company) to the Holders in connection with
         state or federal securities law compliance and blue sky qualification
         of any of the Registrable Securities and the preparation of a "blue
         sky" memorandum and compliance with the rules of the NASD), (iii) all
         expenses of any Persons in preparing or assisting in preparing, word
         processing, duplicating, printing, delivering and distributing any
         Registration Statement, any Prospectus, any amendments or supplements
         thereto, any underwriting agreements, securities sales agreements,
         certificates and other documents relating to the performance of and
         compliance with this Agreement, (iv) all fees and expenses incurred in
         connection with the listing of any of the Registrable Securities on any
         securities exchange or the Nasdaq National Market pursuant to SECTION
         4(K) hereof, (v) the fees and disbursements of counsel for the Company
         and of the independent public accountants of the Company (including,
         without limitation, the expenses of any annual or special audit and
         comfort letters required by the Underwriters), but excluding
         underwriting discounts and commission and transfer taxes, if any,
         relating to the sale or disposition of Registrable Securities by a
         Holder; (vi) Securities Act liability insurance, if the Company so
         desires; and (vii) fees and expenses of other Persons reasonably
         necessary in connection with the registration, including any experts,
         transfer agent or registrar, retained by the Company.

                  "REGISTRATION REQUEST" shall have the meaning set forth in
         SECTION 2(B) hereof.

                  "REGISTRATION STATEMENT" shall mean a Registration Statement
         of the Company which covers all of the Registrable Securities on an
         appropriate form under the Securities Act, or any similar rule that may
         be adopted by the SEC, and all amendments and supplements to such
         Registration Statement, including post-effective amendments, in each
         case including the Prospectus contained therein, all exhibits thereto
         and all material incorporated by reference therein.

                  "RULE 144" shall mean Rule 144 promulgated under the
         Securities Act, as such rule may be amended from time to time, or any
         similar or regulation hereafter adopted by the SEC providing for offers
         and sales of securities made in compliance therewith.

                  "SEC" shall mean the Securities and Exchange Commission or any
         successor federal agency.

                  "SECURITIES ACT" shall mean the Securities Act of 1933, as
         amended, and any successor statute thereto, and the rules and
         regulations of the SEC thereunder, all as the same shall be in effect
         at the relevant time.

                  "SERIES A PREFERRED UNITS" shall have the meaning therefor set
         forth in the



                                       -4-

<PAGE>   5


         Recitals.

                  "UNDERWRITER" means a securities dealer who purchases any
         Registrable Securities as principal and not as part of such dealer's
         market-making activities.

                  "UNDERWRITTEN OFFERING" shall mean a sale of securities of the
         Company to an underwriter or underwriters for reoffering to the public.

         2.       REGISTRATION UNDER THE SECURITIES ACT.

         (A)      FILING OF SHELF REGISTRATION STATEMENT. The Company shall file
within sixty (60) days after all Series A Preferred Units shall be exchanged for
Preferred Stock, a "shelf" Registration Statement providing for the sale of all
of the Registrable Securities of the Holder. The Company shall use its best
efforts to cause such shelf Registration Statement to be declared effective by
the SEC within one hundred and twenty (120) days thereafter. The Company agrees
to use its best efforts to keep the shelf Registration Statement continuously
effective until the earliest of (A) 24 months following the effective date of
the Registration Statement, (B) such time as all of the Registrable Securities
have been sold pursuant to the Registration Statement or Rule 144, and (C) the
date on which the Registrable Securities may be sold without holding periods or
volume restrictions in accordance with Rule 144. Any offering pursuant to a
shelf registration provided for in this SECTION 2(A) may, at the election of the
Holders of a majority of the Registrable Securities, be an Underwritten
Offering.

         (B)      DEMAND REGISTRATION.

                  (i) At any time during which a shelf Registration Statement is
         not effective with respect to the Registrable Securities, upon receipt
         of a written request (a "REGISTRATION REQUEST"), which shall include a
         description of such Holders' proposed method of distribution (which
         method may, at the election of the Holders of a majority of the
         Registrable Securities, also include an Underwritten Offering by a
         nationally recognized Underwriter selected by the Company and
         reasonably acceptable to the Registering Holders) from Holders holding
         Registrable Securities having an aggregate expected offering price of
         at least $25,000,000 (or, all remaining Registrable Securities if all
         such remaining Registrable Securities shall have an aggregate expected
         offering price of less than $25,000,000), the Company shall (i)
         promptly give notice of the Registration Request to all non-requesting
         Holders and (ii) prepare and file with the SEC, within sixty (60) days
         after receipt of such Registration Request, a Registration Statement
         for the sale of all Registrable Securities held by the requesting
         Holders and any other Holder who makes a written request of the Company
         to have her or his Registrable Securities included in such Registration
         Statement, which such written request must be received by the Company
         within ten (10) days after such Holder receives the Registration
         Request (all of such Holders, collectively, the "REGISTERING HOLDERS").
         Upon receipt of such written request, the Company shall use its best
         efforts to cause such Registration Statement to be


                                       -5-

<PAGE>   6


         declared effective within one hundred twenty (120) days after receipt
         of a Registration Request. The Company shall keep such Registration
         Statement continuously effective until the earlier of either: (i) the
         date on which all Registrable Securities have been sold pursuant to
         such Registration Statement or Rule 144 or (ii) two (2) years from the
         effective date of the Registration Statement.

                  (ii) The Company shall not be required to effect more than
         three registrations pursuant to this SECTION 2(B).

                 (iii) If any of the Registrable Securities registered pursuant
         to a Registration Statement filed under this SECTION 2(B) are to be
         sold in an Underwritten Offering, and the lead managing Underwriter
         advises the Registering Holders in writing that in its opinion the
         total number or dollar amount of Registrable Securities proposed to be
         sold in such offering is such as to materially and adversely affect the
         success of such offering, then the Company will include in such
         registration, first, the Registrable Securities of the Registering
         Holders and, second, any securities to be sold for the account of the
         Company and for the account of other security holders of the Company
         who have contractual rights to participate in such registration (the
         "OTHER HOLDERS") electing to include (but not being entitled to demand
         inclusion of) securities in such registration (it being understood that
         such lead managing Underwriter shall have the right to eliminate
         entirely the participation in such registration of the Company and such
         Other Holders).

                  (iv) The Company shall be entitled to postpone, for a
         reasonable period of time not in excess of ninety (90) days, the filing
         of a Registration Statement of the Company, if it determines, in the
         good faith exercise of its reasonable business judgement, that such
         registration and offering could materially adversely affect the bona
         fide financing plans of the Company or would require the disclosure of
         information, the premature disclosure of which could materially
         adversely affect the Company or any transaction under consideration by
         the Company; provided, however, that the Company shall not be entitled
         to such postponement more than once in any 360-day period.

         (C)      PIGGYBACK REGISTRATION RIGHTS.

                  (i)  If the Company proposes to file a Registration Statement
         under the Securities Act with respect to an offering by the Company for
         its own account (a "PRIMARY REGISTRATION") or for the account of any of
         its respective security holders (other than a registration statement on
         Form S-4 or S-8 (or any substitute form that may be adopted by the SEC)
         or filed in connection with an exchange offer or offering of securities
         solely to the Company's existing security holders)(a "SECONDARY
         REGISTRATION") and a Registration Statement is not otherwise effective
         with respect to the Preferred Stock issuable upon exchange of the
         Series A Preferred Units, then the Company shall promptly give written
         notice of such proposed filing to the Holders of Registrable Securities
         and such notice shall offer such Holders the opportunity to register


                                       -6-

<PAGE>   7


         such number of shares of Registrable Securities as each such Holder may
         request (a "PIGGYBACK REGISTRATION"). The Company shall use its all
         commercially reasonable efforts to cause the managing Underwriter or
         Underwriters of a proposed Underwritten Offering to permit the
         Registrable Securities requested to be included in a Piggyback
         Registration to be included on the same terms and conditions as any
         similar securities of the Company included therein.

                 (ii)  Any Holder requesting inclusion of Registrable Securities
         pursuant to this SECTION 2(C) may, prior to the effective date of the
         Registration Statement relating to such registration, revoke such
         request by delivering written notice of such revocation to the Company
         and the managing Underwriter, if any, at least two (2) business days
         prior to the effective date of the registration; provided, however,
         that if the Company, in consultation with its financial and legal
         advisors, determines that such revocation would materially delay the
         registration or otherwise require a recirculation of the Prospectus
         contained in the Registration Statement, then such Holder shall have no
         such right to revoke its request. If the withdrawal of any Registrable
         Securities would allow, within the marketing limitations set forth
         above, the inclusion in the underwriting of a greater number of shares
         of Registrable Securities, then, to the extent practicable and without
         delaying the underwriting, the Company shall offer to the Holders an
         opportunity to include additional shares of Registrable Securities,
         which additional Registrable Securities shall be included in such
         registration pro rata among the holders of Registrable Securities
         requesting such registration and the holders of such other securities
         on the basis of the number of securities requested for inclusion in
         such registration by each such holder. Any Registrable Securities
         excluded or withdrawn from such underwriting shall also be withdrawn
         from registration and shall not be transferred in a public distribution
         prior to ninety (90) days after the effective date of the Registration
         Statement relating thereto, or such shorter period of time as the
         managing Underwriter may require.

                 (iii) The Company shall have the right to terminate or
         withdraw any registration initiated by it under this SECTION 2(C) prior
         to the effectiveness of such registration whether or not any Holder has
         elected to include securities in such registration.

         (D)      REDUCTION IN AMOUNT OF SECURITIES. Notwithstanding anything
contained herein, if the managing Underwriter or Underwriters of an offering
described in this SECTION 2 are of the opinion that (i) the size of the offering
that the Holders, the Company and/or such other Persons intend to make, or (ii)
the kind of the securities that the Holders, the Company and/or any other
persons or entities intend to include in such offering are such that the success
of the offering would be materially and adversely affected by inclusion of the
Registrable Securities requested to be included, then (A) if the size of the
offering is the basis of such Underwriter's opinion, the amount of securities to
be offered for the accounts of Holders shall be reduced pro-rata (on the basis
of the Registrable Securities proposed for registration) to the extent necessary
to reduce the total amount of securities to be included in such offering to the
amount


                                       -7-

<PAGE>   8



recommended by such managing Underwriter or Underwriters; provided that if
securities are being offered for the account of other Persons as well as the
Company, then (1) in the case of a Primary Registration, the reduction in the
amount of securities requested to be offered shall be made first pro-rata among
securities offered for the accounts of Holders and such other Persons, and (2)
in the case of a Secondary Registration, the reduction in the amount of such
securities requested to be offered shall be made in accordance with the terms of
the registration rights agreement pursuant to which such Secondary Registration
is made, provided that if any such registration rights agreement is silent with
respect to reductions in shares being registered thereunder, then with respect
to the Registrable Securities intended to be offered by Holders, the proportion
by which the amount of such class of securities intended to be offered by
Holders is reduced shall not exceed the proportion by which the amount of such
class of securities intended to be offered by such other Persons is reduced, and
(B) if the combination of securities to be offered is the basis of such
Underwriter's opinion, (x) the Registrable Securities to be included in such
offering shall be reduced as described in clause (A) above, or (y) if the
actions described in clause (x) would, in the judgment of the managing
Underwriter, be insufficient to substantially eliminate the adverse effect that
inclusion of the Registrable Securities requested to be included would have on
such offering, such Registrable Securities will be excluded from such offering.

         (E)      EXPENSES. The Company shall pay all Registration Expenses
in connection with any registration undertaken pursuant to SECTIONS 2(A), 2(B)
and 2(C) hereof. The Holder shall pay all underwriting discounts and commissions
and transfer taxes, if any, relating to the sale or disposition of such Holder's
Registrable Securities pursuant to the Registration Statement.

         3.       HOLD-BACK AGREEMENT.

         Each Holder of Registrable Securities shall not effect any public sale
or distribution of securities of the Company of the same or similar class or
classes of the securities included in the Registration Statement or any
securities convertible into or exchangeable or exercisable for such securities,
including a sale pursuant to Rule 144 or Rule 144A under the Securities Act,
during such periods as reasonably requested by the Underwriter in an
underwritten public offering by the Company; provided that no Holder shall be so
obligated under this SECTION 3 in the event that any such period requested by
the Underwriter is longer than one hundred (100) days or occurs more than once
in any twelve (12) month period.

         4.       REGISTRATION PROCEDURES.

         In connection with the obligations of the Company with respect to a
Registration Statement pursuant to SECTIONS 2(A), 2(B) and 2(C) hereof, the
Company shall use its best efforts to effect or cause to be effected the
registration of the Registrable Securities under the Securities Act to permit
the sale of such Registrable Securities by the Holder in accordance with its
intended method or methods of distribution, and the Company shall:

         (A)      prepare and file with the SEC, as specified in SECTION 2
hereof, a Registration

                                       -8-

<PAGE>   9



Statement, which Registration Statement shall comply as to form in all material
respects with the requirements of the applicable form and include all financial
statements required by the SEC to be filed therewith, and use its best efforts
to cause such Registration Statement to become effective and remain effective in
accordance with SECTION 2 hereof;

         (B)      subject to SECTION 4(J) hereof, prepare and file with the SEC
such amendments and post-effective amendments to each such Registration
Statement as may be necessary to keep such Registration Statement effective for
the applicable period; cause each such Prospectus to be supplemented by any
required prospectus supplement, and as so supplemented to be filed pursuant to
Rule 424 or any similar rule that may be adopted under the Securities Act; and
comply with the provisions of the Securities Act with respect to the disposition
of all securities covered by each Registration Statement during the applicable
period in accordance with the intended method or methods of distribution by the
selling Holder thereof;

         (C)      furnish to the Holder of Registrable Securities without
charge, as many copies of each Prospectus, including each summary prospectus or
preliminary Prospectus, and any amendment or supplement thereto and such other
documents as such Holder may reasonably request, in order to facilitate the
public sale or other disposition of the Registrable Securities; the Company
consents to the use of any such Prospectus, including each preliminary
Prospectus, by the Holder of Registrable Securities, if any, in connection with
the offering and sale of the Registrable Securities covered by any such
Prospectus;

         (D)      use its best efforts to register or qualify, or obtain
exemption from registration or qualification for, all Registrable Securities by
the time the applicable Registration Statement is declared effective by the SEC
under all applicable state securities or "blue sky" laws of such jurisdictions
as the Holder of Registrable Securities covered by a Registration Statement
shall reasonably request in writing, keep each such registration or
qualification or exemption effective during the period such Registration
Statement is required to be kept effective and do any and all other acts and
things which may be reasonably necessary or advisable to enable such Holder to
consummate the disposition in each such jurisdiction of such Registrable
Securities owned by such Holder; provided, however, that the Company shall not
be required to (i) qualify generally to do business in any jurisdiction or to
register as a broker or dealer in such jurisdiction where it would not otherwise
be required to qualify but for this SECTION 4(D), (ii) subject itself to
taxation in any such jurisdiction, or (iii) submit to the general service of
process in any such jurisdiction;

         (E)      notify the Holder of Registrable Securities promptly and, if
requested by such Holder, confirm such advice in writing (i) when a Registration
Statement has become effective and when any post-effective amendments and
supplements thereto become effective, (ii) of the issuance by the SEC or any
state securities authority of any stop order suspending the effectiveness of a
Registration Statement or the initiation of any proceedings for that purpose,
and (iii) of the happening of any event during the period a Registration
Statement is effective as a result of which such Registration Statement or the
related Prospectus contains any untrue statement of a material fact or omits to
state any material fact required to be stated therein or


                                       -9-

<PAGE>   10



necessary to make the statements therein not misleading, and (iv) of the
Company's receipt of any notification of the suspension of the qualification of
any Registrable Securities covered by a Registration Statement for sale in any
jurisdiction; in the event the Company shall give notice as to the occurrence of
any event described SECTIONS 4(E)(II), 4(E)(III) or 4(E)(IV) hereof, the Company
shall extend the period during which such Registration Statement shall be
maintained effective by the number of days during the period from and including
the date of the giving of such notice to the date the Company delivers notice
that disposition may be made;

         (F)      furnish to the Holder of Registrable Securities copies of any
request by the SEC or any state securities authority of amendments or
supplements to a Registration Statement and Prospectus or for additional
information;

         (G)      make all commercially reasonable efforts to obtain the
withdrawal of any order suspending the effectiveness of a Registration Statement
at the earliest possible moment;

         (H)      provide to the Holders, at no cost to such Holders, a copy of
the Registration Statement and any amendment thereto with respect to Registrable
Securities, each Prospectus contained in such Registration Statement or
post-effective amendment and any amendment or supplement thereto and such other
documents as such Holders may reasonably request in order to facilitate the
disposition of their Registrable Securities covered by such Registration
Statement; the Company consents to the use of each such Prospectus and any
supplement thereto by such Holders in connection with the offering and sale of
their Registrable Securities covered by such Registration Statement or any
amendment thereto;

         (I)      upon the occurrence of any event contemplated by SECTION
4(E)(III) hereof, promptly notify all Holders of the Registrable Securities
affected by such event of such event and prepare and provide to such Holders a
supplement or post-effective amendment to a Registration Statement or the
related Prospectus or any document incorporated therein by reference and file
any required document so that, as thereafter delivered to the purchasers of the
Registrable Securities, such Prospectus will not 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, in the light of the circumstances
under which they were made, not misleading;

         (J)      make available for inspection by representatives of the Holder
of the Registrable Securities and any Underwriters participating in any
disposition pursuant to a Registration Statement and any special counsel or
accountant retained by such Holders or Underwriters, all financial and other
records, pertinent corporate documents and properties of the Company as shall be
reasonably necessary to enable them to exercise their due diligence
responsibility and cause the respective officers, directors and employees of the
Company to supply all information reasonably requested by any such
representative, Underwriter, special counsel or accountant in connection with a
Registration Statement; provided, however, that such records, documents or
information which the Company determines, in good faith, to be confidential and
notifies such representatives, Underwriter's special counsel or accountants are
confidential shall not be


                                      -10-

<PAGE>   11



disclosed by the representatives, Underwriter's special counsel or accountants
unless (i) the disclosure of such records, documents or information is necessary
to avoid or correct a misstatement or omission in a Registration Statement, (ii)
the release of such records, documents or information is ordered pursuant to a
subpoena or other order from a court of competent jurisdiction, or (iii) such
records, documents or information have been generally made available to the
public. Each Holder agrees that information obtained by it as a result of such
inspections shall be deemed confidential and shall not be used by it as the
basis for any market transactions in the securities of the Company or its
Affiliates or otherwise disclosed by it unless and until such is made generally
available to the public;

         (K)      use its best efforts (including, without limitation, seeking
to cure any deficiencies (within the Company's control) cited by such exchange
or market in the Company's listing application) to list all Registrable
Securities on The New York Stock Exchange (unless the Company qualifies and
chooses to list all Registrable Securities on the American Stock Exchange or The
Nasdaq National Market, in which event the Company shall use its best efforts to
list all Registrable Securities on the American Stock Exchange or The Nasdaq
National Market);

         (L)      use its best efforts to obtain a CUSIP number for all
Registrable Securities, not later than the effective date of the Registration
Statement;

         (M)      use best efforts to comply with the Securities Act and the
Exchange Act in connection with the offer and sale of the Registrable Securities
to be sold pursuant to a Registration Statement, and, make available to its
security holders, as soon as reasonably practicable, an earnings statement
covering at least twelve (12) months which shall satisfy the provisions of
Section 11(a) of the Securities Act and Rule 158 thereunder;

         (N)      provide and cause to be maintained a transfer agent for all
Registrable Securities covered by such Registration Statement from and after a
date not later than the effective date of such Registration Statement;

         (O)      cooperate with the Holders to facilitate the timely
preparation and delivery of certificates representing their Registrable
Securities to be sold pursuant to a Registration Statement and not bearing any
Securities Act legend; and enable certificates for such Registrable Securities
be issued for such numbers of shares and registered in such names as such
Holders may reasonably request at least two (2) business days prior to any sale
of their Registrable Securities;

         (P)       enter into customary agreements (including an underwriting
agreement or securities sales agreement, if any, in customary form) containing
such representations and warranties to the Holders of such Registrable
Securities and the Underwriters, if any, in form, substance and scope as are
customarily made by issuers to underwriters in similar underwritten offerings as
may be reasonably requested by them and take such other actions as are
reasonably


                                      -11-

<PAGE>   12



required in order to expedite or facilitate the disposition of such Registrable
Securities; and

         (Q)      furnish to each registering Holder of Registrable Securities
and to each Underwriter, if any, a signed counterpart, addressed to such
registering Holder of Registrable Securities or Underwriter, of (i) an opinion
or opinions of counsel to the Company and (ii) a comfort letter or comfort
letters from the Company's independent public accountants (to the extent
permitted by the standards of the American Institute of Certified Public
Accountants), each in customary form and covering such matters of the type
customarily covered by opinions or comfort letters, as the case may be, as the
Holders of a majority of the Registrable Securities included in such offering or
the managing Underwriter or Underwriters therefor reasonably request.

         The Company may require, as a condition precedent to the obligations of
the Company under this Agreement, each registering Holder of Registrable
Securities to promptly furnish in writing to the Company such information
regarding such Holder, the Registrable Securities held by it and the intended
method of distribution of the Registrable Securities as the Company may from
time to time reasonably request and such other information as may be legally
required in connection with such registration.

         The Holders agree that, upon receipt of any notice from the Company of
the happening of any event of the kind described in SECTION 4(E)(III) hereof,
such Holder will immediately discontinue disposition of Registrable Securities
pursuant to a Registration Statement until such Holders' receipt of the copies
of the supplemented or amended Prospectus, and if so directed by the Company,
such Holders will deliver to the Company (at the expense of the Company) all
copies in its possession, other than permanent file copies then in such Holders'
possession, of the Prospectus covering such Registrable Securities current at
the time of receipt of such notice. Each Holder of Registrable Securities shall
promptly notify the Company at any time when a Prospectus relating to the
registration of such Registrable Securities is required to be delivered under
the Securities Act of the happening of an event as a result of which information
previously furnished by such Holder to the Company in writing for inclusion in
such Prospectus contains an untrue statement of a material fact or omits to
state any material fact required to be stated therein or necessary to make the
statements therein, in light of the circumstances in which they were made, not
misleading.

         5.       BLACK-OUT PERIOD.

         (A)      Notwithstanding anything in SECTION 2(B)(IV) above to the
contrary, if (1) the Company determines in its good faith judgment that the
filing of a Registration Statement under SECTION 2 hereof or the use of any
related Prospectus would require the disclosure of non-public material
information that the Company has a bona fide business purpose for preserving as
confidential or the disclosure of which would impede the Company's ability to
consummate a material transaction, and that the Company is not otherwise
required by applicable securities laws or regulations to disclose, or (2) all
reports required to be filed by the Company pursuant to


                                      -12-

<PAGE>   13



the Exchange Act have not been filed by the required date without regard to any
extension, or if the consummation of any business combination by the Company has
occurred or is probable for purposes of Rule 3-05 or Article 11 of Regulation
S-X under the Act; then in either event and upon written notice of such by the
Company, the rights of the Holders to offer, sell or distribute any Registrable
Securities pursuant to the Registration Statement (shelf or otherwise, as
appropriate) or to require the Company to take action with respect to the
registration or sale of any Registrable Securities pursuant to the Registration
Statement (shelf or otherwise, as appropriate) shall be suspended until the
earlier of (i) the date upon which the Company notifies the Holders in writing
that suspension of such rights for the grounds set forth in this Section 5 is no
longer necessary, and (ii) one hundred twenty (120) days. The Company shall give
such notice as promptly as practicable following the date that such suspension
of rights is no longer necessary and the period of time for which the Company
shall be obligated to keep the Registration Statement effective under SECTION 2
shall be extended by one day for each day of such suspension period.

         (B)      In the case of an event which causes the Company to suspend
the effectiveness of a Registration Statement (a "SUSPENSION EVENT"), the
Company may give notice (a "SUSPENSION NOTICE") to the Holder to suspend sales
of the Registrable Shares so that the Company may correct or update the
Registration Statement (or such filings); provided, however, that such
suspension shall continue only for so long as the Suspension Event or its effect
is continuing. The Holder agrees that it will not effect any sales of the
Registrable Shares pursuant to such Registration Statement (or such filings) at
any time after it has received a Suspension Notice from the Company. If so
directed by the Company, Holder will deliver to the Company all copies of the
Prospectus covering the Registrable Shares held by them at the time of receipt
of the Suspension Notice. The Holder may recommence effecting sales of the
Registrable Shares pursuant to the Registration Statement (or such filings)
following further notice to such effect (an "END OF SUSPENSION NOTICE") from the
Company, which End of Suspension Notice shall be given by the Company promptly
following the conclusion of any Suspension Event and the effectiveness of any
required amendment or supplement to the Registration Statement.

         (C)      Notwithstanding the provisions of SECTIONS 5(A) and 5(B) to
the contrary no Suspension Notice may be given more than once in any twelve (12)
month period. Moreover, notwithstanding SECTIONS 2(A), 2(B) and 2(C) hereof, if
the Company shall give a Suspension Notice pursuant to this SECTION 5, the
Company agrees that it shall extend the period during which the Registration
Statement shall be maintained effective pursuant to this Agreement by the number
of days during the period from the date of the giving of the Suspension Notice
to and including the date when the Holders shall have received the End of
Suspension Notice and copies of the supplemented or amended Prospectus necessary
to resume sales.

         6.       RULE 144 AND RULE 144A.

         For so long as the Company is subject to the reporting requirements of
Section 13 or 15 of the Exchange Act, the Company covenants that it will timely
file the reports required to be


                                      -13-

<PAGE>   14



filed by it under the Securities Act and Section 13(a) or 15(d) of the Exchange
Act and the rules and regulations adopted by the SEC thereunder and, if at any
time the Company is not required to file such reports, it will, upon the request
of any Holder of Registrable Securities, make publicly available other
information so long as necessary to permit sales pursuant to Rule 144 under the
Securities Act. The Company also covenants that it will provide the information
required pursuant to Rule 144A(d)(4) under the Securities Act upon the request
of any Holder of Registrable Securities and it will take such further action as
any Holder of Registrable Securities may reasonably request, all to the extent
required from time to time, to enable such Holder to sell its Registrable
Securities without registration under the Securities Act within the limitation
of the exemptions provided by (a) Rule 144 under the Securities Act, as such
Rule may be amended from time to time, (b) Rules 144A under the Securities Act,
as such Rule may be amended from time to time, or (c) any similar rule or
regulation hereafter adopted by the SEC. Upon the request of any Holder of
Registrable Securities, the Company will deliver to such Holder a written
statement as to whether it has complied with such requirements.

         7.       INDEMNIFICATION.

         (A)      The Company will indemnify each Holder, each such Holder's
officers and directors, and each person controlling such Holder within the
meaning of Section 15 of the Securities Act, against all claims, losses,
damages, liabilities and expenses (including reasonable legal expenses), arising
out of or based on any untrue statement (or alleged untrue statement) of a
material fact contained in any Registration Statement or prospectus relating to
such Holders' Registrable Securities, or any amendment or supplement thereto, or
based on any omission (or alleged omission) to state therein a material fact
required to be stated therein or necessary to make the statements therein not
misleading; provided, however, that the Company will not indemnify and will not
be liable to any Holder in any such case to the extent that any such claim,
loss, damage, liability or expense arises out of or is based on any untrue
statement or omission or alleged untrue statement or omission, made in
conformity with and in reliance upon information furnished in writing to the
Company by such Holder or by an Underwriter for inclusion therein.

         (B)      Each Holder will indemnify the Company, each of its officers
and directors, each underwriter, if any, of the Company's securities covered by
such Registration Statement, and each person who controls the Company or such
underwriter within the meaning of Section 15 of the Securities Act, against all
claims, losses, damages, liabilities and expenses (including reasonable legal
fees and expenses) arising out of or based on any untrue statement (or alleged
untrue statement) of a material fact contained in any such Registration
Statement or prospectus, or any amendment or supplement thereto, or based on any
omission (or alleged omission) to state therein a material fact required to be
stated therein or necessary to make the statements therein not misleading, in
each case to the extent, but only to the extent, that such untrue statement (or
alleged untrue statement) or omission (or alleged omission) is made in such
Registration Statement or prospectus, in reliance upon and in conformity with
information furnished in writing to the Company by such Holder for inclusion
therein.


                                      -14-

<PAGE>   15


         (C)      Each party entitled to indemnification under this SECTION 7
(the "INDEMNIFIED PARTY") shall give notice to the party required to provide
indemnification (the "INDEMNIFYING PARTY") promptly after such Indemnified Party
has actual knowledge of any claim as to which indemnity may be sought. However,
the failure to so notify the Indemnifying Party shall not relieve the
Indemnifying Party from any liability which it may have to the Indemnified Party
pursuant to the provisions of this SECTION 7, except to the extent of the actual
damages suffered by such delay in notification. The Indemnifying Party shall
assume the defense of such action. including the employment of counsel, which
shall be chosen by the Indemnifying Party and shall be reasonably satisfactory
to the Indemnified Party, and payment of expenses in connection with such
defense. The Indemnified Party shall have the right to employ its own counsel in
any such case, but the legal fees and expenses of such counsel shall be at the
expense of the Indemnified Party unless (i) the employment of such counsel shall
have been authorized in writing by the Indemnifying Party, (ii) the Indemnifying
Party shall not have assumed the defense of such action within a reasonable
period of time, or (iii) the Indemnified Party shall have been reasonably
advised by its counsel that there may be defenses available to it or them which
are different from or additional to those available to Indemnifying Party (in
which case the Indemnifying Party shall not have the right to direct the defense
of such action on behalf of the Indemnified Party), in any of which events such
fees and expenses shall be borne by the Indemnifying Party. No Indemnifying
Party in the defense of any such claim or litigation, shall, except with the
consent of each Indemnified Party, consent to the entry of any judgment or enter
into any settlement that does not include as an unconditional term thereof the
giving by the claimant or plaintiff to each such Indemnified Party of a release
from all liability in respect to such claim or litigation.

         (D)      If the indemnification provided for in this SECTION 7 is
unavailable to a party that would have been an Indemnified Party under this
SECTION 7, then each party that would have been an Indemnifying Party hereunder
shall, in lieu of indemnifying such Indemnified Party, contribute to the amount
paid or payable by such Indemnified Party as a result of such claims, losses,
damages, liabilities and expenses in such proportion as is appropriate to
reflect the relative fault of the Indemnifying Party on the one hand and such
Indemnified Party on the other in connection with the statement or omission
which resulted in such claims, losses, damages, liabilities and expenses, as
well as any other relevant equitable considerations. The relative fault shall be
determined by reference to, among other things, whether the untrue or alleged
untrue statement of a material fact or the omission or alleged omission to state
a material fact related to information supplied by the Indemnifying Party or the
Indemnified Party and the parties' relative intent, knowledge, access to
information and opportunity to correct or prevent such statement or omission.
The Company and each Holder 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 that fails to take account of the equitable
considerations referred to above in this SECTION 7(D). For purposes of this
SECTION 7(D), each person, if any, who controls the Holder within the meaning of
Section 15 of the Securities Act shall have the same rights to contribution
as the Holder and each trust manager of the Company, each officer of the Company
who signed the Registration Statement and each person, if any, who controls the
Company

                                      -15-

<PAGE>   16


within the meaning of Section 15 of the Securities Act shall have the same
rights to contribution as the Company.

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

         (F)      In no event shall any Holder be liable for any claims, losses,
damages, liabilities or expenses pursuant to this SECTION 7 in excess of the net
proceeds to such Holder for the sale of such Holder's Registrable Securities
pursuant to a registration.

         8.       MISCELLANEOUS.

         (A)      NO INCONSISTENT AGREEMENT. The Company has not entered into
nor will the Company on or after the date of this Agreement enter into any
agreement which is inconsistent with the rights granted to the Holder of
Registrable Securities in this Agreement or otherwise conflicts with the
provisions hereof. The rights granted to the Holder do not in any way conflict
with and are not inconsistent with the rights granted to the holder of the
Company's other issued and outstanding securities under any such agreements.

         (B)      AMENDMENTS AND WAIVERS. The provisions of this Agreement,
including the provisions of this sentence, may not be amended, modified or
supplemented, and waivers or consents to departures from the provisions hereof
may not be given without the written consent of the Company and Holders holding
at least a majority of the total then outstanding (i) Registrable Securities and
(ii) Series A Preferred Units not theretofore exchanged for Preferred Stock.

         (C)      NOTICES. All notices and other communications provided for or
permitted hereunder shall be made in writing by hand-delivery, registered
first-class mail, telex, facsimile, or any courier guaranteeing overnight
delivery (i) if to the Contributors, at the address or facsimile number set
forth below its signature hereon, and thereafter at such other address or
facsimile number, notice of which is given in accordance with the provisions of
this SECTION 8(C), (ii) if to an assignee or transferee of the Contributors, to
such address or facsimile number such assignee or transferee shall have provided
to the Company, and (iii) if to the Company, at 31700 Middlebelt Road, Suite
145, Farmington Hills, Michigan 48334, facsimile number (248) 932- 3072, and
thereafter at such other address or facsimile number, notice of which is given
in accordance with the provisions of this SECTION 8(C), with a copy to JAFFE,
RAITT, HEUER & WEISS, Attention: Arthur A. Weiss, Esq., Suite 2400, One Woodward
Avenue, Detroit, Michigan 48226, facsimile number (313) 961-8358. All such
notices and communications shall be deemed to have been duly given: at the time
delivered by hand, if personally delivered; five (5) business days after being
deposited in the mail, postage prepaid, if mailed; when answered back, if
telexed; when receipt is acknowledged, if faxed; and on the next business day if
timely delivered to an air courier guaranteeing overnight delivery.


                                      -16-

<PAGE>   17



         (D)      SUCCESSORS. The rights and obligations of any Holder hereunder
may only be assigned to any other Holder or to any assignee of the Series A
Preferred Units permitted under the Agreement of Limited Partnership. This
Agreement shall inure to the benefit of and be binding upon the permitted
successors and assigns of the Company and the Holder.

         (E)      COUNTERPARTS. This Agreement may be executed in any number of
counterparts and by the parties hereto in separate counterparts, each of which
when so executed shall be deemed to be an original and all of which taken
together shall constitute one and the same agreement.

         (F)      HEADINGS. The headings in this Agreement are for convenience
of reference only and shall not limit or otherwise affect the meaning hereof.

         (G)      GOVERNING LAW. THIS AGREEMENT SHALL BE GOVERNED BY AND
CONSTRUED IN ACCORDANCE WITH THE INTERNAL LAWS OF THE STATE OF MICHIGAN, WITHOUT
GIVING EFFECT TO THE CONFLICTS OF LAW PROVISIONS THEREOF. EACH OF THE PARTIES
HERETO AGREES TO SUBMIT TO THE JURISDICTION OF THE COURTS OF THE STATE OF
MARYLAND IN ANY ACTION OR PROCEEDING ARISING OUT OF OR RELATING TO THIS
AGREEMENT.

         (H)      SEVERABILITY. In the event that any one or more of the
provisions contained herein, or the application thereof in any circumstance, is
held invalid, illegal or unenforceable, the validity, legality and
enforceability of any such provision in every other respect and of the remaining
provisions contained herein shall not be affected or impaired thereby.

         (I)      SPECIFIC PERFORMANCE. The parties hereto acknowledge that
there would be no adequate remedy at law if any party fails to perform any of
its obligations hereunder, and accordingly agree that each party, in addition to
any other remedy to which it may be entitled at law or in equity, shall be
entitled to compel specific performance of the obligations of any other party
under this Agreement to accordance with the terms and conditions of this
Agreement in any court of the United States or any State thereof having
jurisdiction.

         (J)      ENTIRE AGREEMENT. This Agreement is intended by the parties as
a final expression of their agreement and intended to be a complete and
exclusive statement of the agreement and understanding of the parties hereto in
respect of the subject matter contained herein. This Agreement supersedes all
prior agreements and understandings between the parties with respect to the
subject matter hereof.

         (K)      ATTORNEYS' FEES. If the Company or any Holder brings an action
to enforce its rights under this Agreement, the prevailing party in the action
shall be entitled to recover its costs and expenses, including without
limitation, reasonable attorneys' fees, incurred in connection with such action,
including any appeal of such action.



                                      -17-

<PAGE>   18


         (L)      AUTHORITY; BINDING EFFECT. Each party hereto represents and
warrants that it has the full legal right, power and authority to execute this
Agreement, that this Agreement has been duly authorized, executed and delivered
on behalf of such party and constitutes a valid and binding agreement of such
party enforceable in accordance with its terms.

         (M)      LIMITATION ON PARTICIPATION IN UNDERWRITTEN PARTICIPATION. No
Person may participate in any underwritten registration hereunder unless such
Person (i) agrees to sell such Person's securities on the basis provided in any
underwriting arrangements approved by the Persons entitled hereunder to approve
such arrangements, and (ii) completes and executes all questionnaires, powers of
attorney, indemnities, underwriting agreements and other documents in customary
form and reasonably required under the terms of such underwriting arrangements
and the registration rights provided for in SECTION 2.












                        (SIGNATURES APPEAR ON NEXT PAGE)



                                      -18-

<PAGE>   19


         IN WITNESS WHEREOF, the parties have executed this Agreement as of the
date first written above.


                          SUN COMMUNITIES, INC.


                          By: /s/ Jeffrey P. Jorissen
                             --------------------------------------------------
                                   Name: Jeffrey P. Jorissen
                                   Title: Chief Financial Officer


                          BELCREST REALTY CORPORATION


                          By: /s/ William R. Cross
                             --------------------------------------------------
                                   Name: William R. Cross
                                   Title: Vice President
                          Address:        c/o Eaton Vance Management
                                          The Eaton Vance Building
                                          255 State Street
                                          Boston, Massachusetts 02109
                                          Attention: Alan Dynner
                          Facsimile:      (617) 388-8054


                          BELAIR REAL ESTATE CORPORATION


                          By: /s/ William R. Cross
                             --------------------------------------------------
                                   Name: William R. Cross
                                   Title: Vice President
                          Address:        c/o Eaton Vance Management
                                          The Eaton Vance Building
                                          255 State Street
                                          Boston, Massachusetts 02109
                                          Attention: Alan Dynner
                          Facsimile:      (617) 388-8054





                                      -19-






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