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                                                                     EXHIBIT 4.2


                          FIRST SUPPLEMENTAL INDENTURE

     This First Supplemental Indenture is made as of this 20th day of August,
1997 by and among SUN COMMUNITIES OPERATING LIMITED PARTNERSHIP, a Michigan
limited partnership (the "Company"), and BANKERS TRUST COMPANY, a New York
banking corporation (the "Trustee").

                                    RECITALS

     A. The Company, Sun Communities, Inc., a Maryland corporation ("Sun"), and
the Trustee entered into an Indenture dated as of April 24, 1996 (the
"Indenture").

     B. Any capitalized term not defined herein shall have the meaning assigned
to it in the Indenture.

     C. Section 901(9) of the Indenture provides that the Company and the       
Trustee may amend the Indenture without notice to or consent of any Holders of
Securities with respect to matters or questions arising under the Indenture
which are not inconsistent with the provisions of the Indenture as long as such
provisions do not adversely affect the interests of the Holders of Securities
of any series or any related coupons in any material respect.

     D. The Company has determined that the amendments described below will not
adversely affect the interests of the Holders of Securities of any series or
any related coupons in any material respect.

     NOW, THEREFORE, the parties hereby agree as follows:

     1. The following definition is added to Section 101 of the Indenture:

      "Specified Currency" means the currency or composite currency in
      which a particular Security is denominated, or, if such currency
      or composite currency is no longer legal tender for the payment of
      public and private debts, such other currency or composite
      currency of the relevant country which is then legal tender for
      the payment of such debts.

     2. The following sentence is added to the end of the first paragraph of
Section 307 of the Indenture:

      Notwithstanding the foregoing, a Holder of  Ten Million and 00/100
      Dollars ($10,000,000) (or, if the Specified Currency is other than
      United States dollars, the equivalent thereof in such Specified
      Currency) or more in aggregate principal amount of Registered
      Securities (whether having identical or different terms and
      provisions) will be entitled to receive interest payments, if any,
      on any Interest Payment Date other than on the date of Maturity by
      wire transfer of immediately available funds if appropriate wire
      transfer instructions have been received in writing (in accordance with
      the notice requirements contained in Section 105) by the Trustee
      not less than 15 days prior to such Interest Payment Date. Any
      such wire transfer instructions received by the Trustee shall
      remain in effect until revoked by such Holder.

     3. Except as modified herein, the Indenture remains unchanged, and, as
modified, continues in full force and effect.



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     IN WITNESS WHEREOF, the undersigned have executed this First Supplemental
Indenture on the above date.

           
                                             SUN COMMUNITIES OPERATING
                                             LIMITED PARTNERSHIP, a Michigan
                                             limited partnership


                                             By:  Sun Communities, Inc., a
                                                  Maryland corporation


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



                                             BANKERS TRUST COMPANY,
                                             as Trustee


                                             By:
                                                ------------------------------
                                                   Title:


ATTEST


By:
   --------------------------
     Title: