EXHIBIT 5
                                          
                   [Letterhead of Rosenberg & Liebentritt, P.C.]



                              June 5, 1998

Board of Trustees
Equity Residential Properties Trust
Two North Riverside Plaza
Suite 400
Chicago, Illinois  60606

Ladies and Gentlemen:

     We are acting as counsel for Equity Residential Properties Trust, a 
Maryland real estate investment trust (the "Company"), in connection with the 
proposed issuance by the Company of awards of, or options to purchase, 
8,000,000 common shares of beneficial interest of the Company, $.01 par value 
per share (the "Common Shares"), in connection with the Equity Residential 
Properties Trust Fourth Amended and Restated 1993 Share Option and Share 
Award Plan (the "Plan"), 5,600,000 of such Common Shares have been registered 
previously and 2,400,000 of such Common Shares (the "Option Shares") are 
currently being registered pursuant to the filing of a Registration Statement 
on Form S-8 (the "Registration Statement") under the Securities Act of 1933, 
as amended, with the Securities and Exchange Commission. This opinion letter 
is furnished to you at your request to enable the Company to fulfill the 
requirements of Item 601(b)(5) of Regulation S-K, 17 C.F.R. (Section ) 
229.601(b)(5), in connection with the Registration Statement.

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

     1.   An executed copy of the Registration Statement.
     
     2.   The Second Amended and Restated Declaration of Trust, as amended, of
          the Company, as certified by the Maryland State Department of
          Assessments and Taxation on June 2, 1998 and by the Secretary of the
          Company on the date hereof as then being complete, accurate and in
          effect.
     
     3.   The Second Amended and Restated Bylaws of the Company, as certified by
          the Secretary of the Company on the date hereof as then being
          complete, accurate and in effect.
     
     4.   The Plan, as certified by the Secretary of the Company on the date
          hereof as then being complete, accurate and in effect.
     
     5.   Resolutions of the Board of Trustees of the Company adopted on March
          2, 1998 and approved by the shareholders of the Company on May 14,
          1998, relating to the Plan, as certified by the Secretary of the
          Company on the date hereof as then being complete, accurate and in
          effect.




Board of Trustees
Equity Residential Properties Trust
Page 2


     6.   The forms of option agreements (the "Option Agreements") and Share
          Awards (as defined in the Plan), as certified by the Secretary of the
          Company on the date hereof as then being complete, accurate and in
          effect.
     
     7.   Such other records, certificates, documents and matters of law as we
          have deemed necessary to render this opinion.

     In our examination of the aforesaid documents, we have assumed the 
genuineness of all signatures, the legal capacity of natural persons, the 
authenticity, accuracy and completeness of all documents submitted to us, the 
authenticity of all original documents and the conformity to authentic 
original documents of all documents submitted to us as copies (including 
telecopies). This opinion letter is given and all statements herein are made, 
in the context of the foregoing.

     We call your attention to the fact that our firm only requires lawyers 
to be qualified to practice law in the State of Illinois and, in rendering 
the opinions set forth herein, we express no opinion with respect to any laws 
relevant to this opinion other than the laws and regulations identified 
herein. With respect to the opinion below that relates to the laws of the 
State of Maryland, with your consent, we rely solely on the opinion of Hogan 
& Hartson L.L.P., a copy of which is attached hereto as EXHIBIT A.

     Based upon, subject to and limited by the foregoing, we are of the 
opinion that, when issued in accordance with the terms of the Plan, and, with 
respect to Share Awards (as defined in the Plan), subject to the forfeiture 
provisions set forth in Section 5 of the Plan, the Option Shares will be 
validly issued, fully paid and nonassessable under Title 8 of the 
Corporations and Associations Article of the Annotated Code of Maryland.

     We assume no obligation to advise you of any changes in the foregoing 
subsequent to the delivery of this opinion letter. This opinion letter has 
been prepared solely for your use in connection with the filing of the 
Registration Statement on the date of this opinion letter and should not be 
quoted in whole or in part or otherwise be referred to, nor filed with or 
furnished to any governmental agency or other person or entity, without the 
prior written consent of this firm.

     We hereby consent to the filing of this opinion letter as Exhibit 5 to 
the Registration Statement. In giving this consent, we do not thereby admit 
that we are an "expert" within the meaning of the Securities Act of 1933, as 
amended.

                                                 Very truly yours,

                                                 ROSENBERG & LIEBENTRITT, P.C.

                                                 /s/ William C. Hermann
                                                 Vice President




                                                                EXHIBIT A

                       [Letterhead of Hogan & Hartson L.L.P.]
                                          
                                          
                                          
                                    June 5, 1998



Rosenberg & Liebentritt, P.C.
Two North Riverside Plaza
Suite 1600
Chicago, Illinois 60606

Ladies and Gentlemen:

     We are acting as special Maryland counsel to Equity Residential 
Properties Trust, a Maryland real estate investment trust (the "Company"), in 
connection with the registration of 2,400,000 common shares of beneficial 
interest, $.01 par value per share ("Option Shares"), on Form S-8 (the 
"Registration Statement"), issuable under the Company's Fourth Amended and 
Restated 1993 Share Option and Share Award Plan (the "Plan").  This opinion 
letter is furnished to you at your request to enable the Company to fulfill 
the requirements of Item 601(b)(5) of Regulation S-K, 17 C.F.R. Section  
229.601(b)(5), in connection with the Registration Statement.

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

     1.   An executed copy of the Registration Statement.

     2.   The Second Amended and Restated Declaration of Trust, as amended, of
          the Company (the "Declaration of Trust"), as certified by the Maryland
          State Department of Assessments and Taxation on June 2, 1998 and the
          Secretary of the Company on the date hereof as then being complete,
          accurate and in effect.

     3.   The Second Amended and Restated Bylaws of the Company, as certified by
          the Secretary of the Company on the date hereof as then being
          complete, accurate and in effect.

     4.   Resolutions of the Board of Trustees of the Company adopted on March
          2, 1998 and resolutions of the shareholders of the Company approved
          at the Annual Meeting of Shareholders held on May 14, 1998, relating
          to the Plan, as certified by the Secretary of the Company on the date
          hereof as then being complete, accurate and in effect.





Rosenberg & Liebentritt, P.C.
June 5, 1998
Page 2

     5.   Forms of option agreements and share awards (as defined in the Plan),
          as certified by the Secretary of the Company on the date hereof as
          then being complete, accurate and in effect.

     6.   The Plan, as certified by the Secretary of the Company on the date
          hereof as then being complete, accurate and in effect.

     In our examination of the aforesaid documents, we have assumed the 
genuineness of all signatures, the legal capacity of natural persons, the 
accuracy and completeness of all documents submitted to us, the authenticity 
of all original documents and the conformity to authentic original documents 
of all documents submitted to us as copies (including telecopies).  This 
opinion letter is given, and all statements herein are made, in the context 
of the foregoing.

     This opinion letter is based as to matters of law solely on Title 8 of 
the Corporations and Associations Article of the Annotated Code of Maryland 
(the "Maryland REIT Statute").  We express no opinion herein as to any other 
laws, statutes, regulations, or ordinances.

     Based upon, subject to and limited by the foregoing, we are of the 
opinion that when issued in accordance with the terms of the Plan, and, with 
respect to Share Awards (as defined in the Plan), subject to the forfeiture 
provisions set forth in Section 5 of the Plan, the Option Shares will be 
validly issued, fully paid and nonassessable under the Maryland REIT Statute.

     We assume no obligation to advise you of any changes in the foregoing 
subsequent to the delivery of this opinion letter.  This opinion letter has 
been prepared solely for your use in connection with the filing by the 
Company of the Registration Statement on the date of this opinion letter.  
This opinion letter should not be quoted in whole or in part or otherwise be 
referred to, nor filed with or furnished to any governmental agency or other 
person or entity, without the prior written consent of this firm.

     We hereby consent to the filing of this opinion letter as Exhibit 5 of 
the Registration Statement.  In giving this consent, we do not thereby admit 
that we are an "expert" within the meaning of the Securities Act of 1933, as 
amended.


                                            Very truly yours,


                                            /s/ Hogan & Hartson L.L.P.

                                            HOGAN & HARTSON L.L.P.