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                                                                     EXHIBIT 5.1


[JAFFE RAITT HEUER & WEISS, P.C. LOGO]



                                February 1, 2001

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

Gentlemen:

         We have acted as counsel to Sun Communities, Inc. (the "Company"), a
Maryland corporation, in connection with the registration by the Company of
71,926 shares (the "Shares") of Common Stock, $.01 par value per share ("Common
Stock") pursuant to a Registration Statement on Form S-3 filed with the
Securities and Exchange Commission on February 1, 2001 (the "Registration
Statement"). This opinion letter is furnished to you at your request to enable
you to fulfill the requirements of Item 601(b)(5) of Regulation S-K, 17 C.F.R.
229.601(b)(5), in connection with the Registration Statement.

         We do not purport to be experts on or to express any opinion in this
letter concerning any law other than the laws of the State of Michigan and the
General Corporation Law of Maryland, and this opinion is qualified accordingly.
This opinion is limited to the matters expressly set forth in this letter, and
no opinion is to be inferred or may be implied beyond the matters expressly so
stated. In rendering the opinion contained in this letter, we have assumed
without investigation that the information supplied to us by the Company is
accurate and complete.

         For purposes of this opinion letter, we have examined copies of the
following documents:

         A.   An executed copy of the Registration Statement;

         B.   The Company's Articles of Amendment and Restatement, as amended
              (the "Charter");

         C.   Second Amended and Restated Limited Partnership Agreement of Sun
              Communities Operating Limited Partnership;

         D.   The first through one hundred twenty-seventh amendments,
              inclusive, to the Second Amended and Restated Limited Partnership
              Agreement of Sun Communities Operating Limited Partnership;

         E.   The Bylaws of the Company;

         F.   The Company's corporate minute book; and

         G.   An Officer's Certificate (the "Certificate"), a copy of which is
              attached to this letter as Exhibit A.




                                    [JAFFE RAITT HEUER & WEISS, P.C. LETTERHEAD]
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         The documents listed in items A-G above are collectively referred to as
the "Documents".

         In rendering our opinion, we have assumed, without independent
verification, that: (i) all signatures are genuine; (ii) all Documents submitted
to us as originals are authentic; and (iii) all Documents submitted to us as
copies conform to the originals of such Documents. Our review has been limited
to examining the Documents and applicable law.

         To the extent that any opinion in this letter relates to or is
dependent upon factual information, we have relied exclusively upon the factual
representations and warranties set forth in the Certificate, and we have not
undertaken to independently verify any such facts or information.

         Based upon, subject to and limited by the foregoing, we are of the
opinion that, as of the date hereof:

         1.    The Shares that may be issued in the future in exchange for
               Common OP Units (as such term is defined in the Registration
               Statement) have been duly authorized.

         2.    Upon issuance in the manner described in the Registration
               Statement of the Shares that are to be issued in exchange for the
               Common OP Units, such Shares will be validly issued, fully paid,
               and non-assessable.

         We hereby consent to the filing of this opinion letter as Exhibit 5.1
to the Registration Statement, and to the use of the name of our firm in the
Prospectus under the caption "LEGAL MATTERS".

                                Very truly yours,

                           JAFFE, RAITT, HEUER & WEISS
                            Professional Corporation


                              /s/ Jeffrey M. Weiss

                                 Jeffrey M. Weiss



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                                   EXHIBIT "A"


                              OFFICER'S CERTIFICATE

         The undersigned, the duly elected and acting President and Chief
Executive Officer of SUN COMMUNITIES, INC., a Maryland corporation (the
"Corporation"), hereby represents and warrants the following to Jaffe, Raitt,
Heuer & Weiss, professional corporation ("JRH&W"):

         1.    Sun Communities, Inc. ("Sun") is a corporation formed under the
               laws of the State of Maryland.

         2.    The Articles of Amendment and Restatement of the Corporation have
               not been amended since September 30, 1999.

         3.    The Second Amended and Restated Limited Partnership Agreement of
               Sun Communities Operating Limited Partnership, a Michigan limited
               partnership, has not been amended other than pursuant to
               amendments prepared by JRH&W.


January 31, 2001                         /s/ Gary  A. Shiffman
                                        ----------------------------------------
                                        Gary  A. Shiffman, President and Chief
                                        Executive Officer