February 2, 2009



Metropolitan Series Fund, Inc.
501 Boylston Street
Boston, Massachusetts 02116

         Re: Registration Statement on Form N-14

Ladies and Gentlemen:

     We have acted as counsel to Metropolitan  Series Fund, Inc. (the "Company")
in connection with the  Registration  Statement of the Company on Form N-14 (the
"Registration Statement") being filed by the Company under the Securities Act of
1933,  as amended  (the  "Act"),  relating to the  proposed  combination  of the
Met/AIM Capital Appreciation Portfolio (the "Acquired  Portfolio"),  a series of
Met Investors  Series Trust (the  "Trust"),  and the BlackRock  Legacy Large Cap
Growth Portfolio (the "Acquiring  Portfolio"),  a series of the Company, and the
issuance  of  Class A and  Class E  shares  of  common  stock  of the  Acquiring
Portfolio  in  connection  therewith   (collectively,   the  "Shares"),  all  in
accordance with the terms of the proposed  Agreement and Plan of  Reorganization
by and among the Trust on behalf of the  Acquired  Portfolio  and the Company on
behalf of the Acquiring Portfolio (the "Agreement and Plan of  Reorganization"),
in  substantially  the form to be included in the  Registration  Statement as an
exhibit.

     We have examined the Company's  Articles of  Incorporation,  as amended and
supplemented  (collectively,  the  "Articles"),  and the  Company's  Bylaws,  as
amended.  We have also  examined  such other  documents  and  records as we have
deemed necessary for the purposes of this opinion. Additionally, we have assumed
that,  as of any date of issuance of the Shares  pursuant to the  Agreement  and
Plan of Reorganization, the number of issued Class A and Class E Shares will not
exceed the number of each such class of Shares authorized to be issued under the
Articles.

     We have assumed for purposes of this opinion that, prior to the date of the
issuance of the Shares,  (1) the Trustees of the Trust and the  shareholders  of
the  Acquired  Portfolio  will have taken all  actions  required of them for the
approval of the Agreement and Plan of  Reorganization  and (2) the Agreement and
Plan of Reorganization  will have been duly executed and delivered by each party
thereto  and will  constitute  the legal,  valid and binding  obligation  of the
Company  on behalf  of the  Acquiring  Portfolio  and the Trust on behalf of the
Acquired Portfolio.

     Based upon and subject to the  foregoing,  we are of the opinion  that when
issued  and   delivered  in   accordance   with  the   Agreement   and  Plan  of
Reorganization, the Shares will be validly issued, fully paid and non-assessable
by the Company,  assuming that as consideration for the Shares not less than the
net  asset  value and the par  value of such  Shares  has been paid and that the
conditions  set  forth in the  Agreement  and Plan of  Reorganization  have been
satisfied.

     We  understand  that  this  opinion  is to be used in  connection  with the
registration of the Shares for offering and sale pursuant to the Act. We consent
to the filing of this opinion with and as part of the Registration Statement and
further consent to the references to our firm in the Registration Statement.

                                Very truly yours,
                                /s/ROPES & GRAY LLP
                                -------------------
                                Ropes & Gray LLP