July 14, 1997



Dynex Capital, Inc.
10900 Nuckols Road
Glen Allen, VA 23060

Re:           Registration Statement on Form S-3
              (Reg. No. 333-10783)
              ----------------------------------



Ladies and Gentlemen:


         We have acted as counsel to Dynex Capital, Inc., a Virginia corporation
(the "Company"), in connection with its proposed public offering of $100,000,000
aggregate  principal amount of Notes pursuant to a Registration  Statement filed
on Form S-3 (Registration No. 333-10783) ("Registration Statement"). On July 14,
1997 the Company  filed a Prospectus  and a Prospectus  Supplement  thereto (the
"Prospectus")  with the Securities and Exchange  Commission  with respect to the
offer and sale of the Notes.

         In that  connection,  we have  examined  originals  or  copies  of such
documents,  corporate  records and other instruments as we have deemed necessary
or  appropriate  for  purposes  of  this  opinion   including  the  Articles  of
Incorporation,  as amended,  Bylaws of the Company,  the Indenture governing the
Notes and the proposed Board of Directors  resolutions which establish the terms
of the Notes. We have assumed without  independent  verification the genuineness
of signatures,  the authenticity of documents, and the conformity with originals
of copies.

         Based on the foregoing, we are of the opinion that the Notes being sold
by the  Company,  when  issued  and sold in  accordance  with  the  terms of the
Underwriting  Agreement in  substantially  the same form filed as Exhibit 1.1 to
the Form 8-K filed by the Company with  Securities  and Exchange  Commission  in
connection  with the offer  and sale of the  Notes  (the  "Form  8-K"),  will be
binding obligations of the Company.




Dynex Capital, Inc.

July 14, 1997
Page 2


         We  are  members  of  the  Bars  of  the  State  of  Maryland  and  the
Commonwealth  of Virginia and the opinions  expressed  herein are limited to the
corporate  laws of such States  pertaining  to such  matters as the  issuance of
securities   and  the  incurrence  of   indebtedness,   but  not  including  the
"securities" or "Blue Sky" laws of such States.

         You may rely on this opinion in  connection  with the sale of the Notes
pursuant to the Registration Statement and Prospectus.  No other person may rely
on this opinion without our prior written consent.

         We hereby  consent to the use of this opinion as an exhibit to the Form
8-K and incorporation by reference  thereof into the Registration  Statement and
to the reference to our firm under "Legal Opinions" in the Prospectus and "Legal
Matters" in the  Preliminary  Prospectus  Supplement"  comprising  a part of the
Registration Statement.

         By giving the  foregoing  consent,  we do not admit that we come within
the  category  of persons  whose  consent  is  required  under  Section 7 of the
Securities Act of 1933.


                                       Very truly yours,



                                       VENABLE, BAETJER AND HOWARD, LLP