Exhibit 5.1

                              FORM OF LEGAL OPINION

                             HOGAN & HARTSON L.L.P.
                           555 THIRTEENTH STREET, N.W.
                             WASHINGTON, D.C. 20004

                                __________, 2000

Board of Directors
Webster Financial Corporation
Webster Plaza
Waterbury, Connecticut  06702

Ladies and Gentlemen:


                  We  are  acting  as  special  counsel  to  Webster   Financial
Corporation,  a  Delaware  corporation  ("Webster"),   in  connection  with  its
registration  statement  on Form S-4 (the  "Registration  Statement")  (File No.
333-33228),  as  amended,  filed with the  Securities  and  Exchange  Commission
relating to the proposed  offering of up to 8,293,778 shares of Webster's common
stock,  par value $.01 per share,  all of which  shares  (the  "Shares")  may be
issued by  Webster in  accordance  with the terms of the  Agreement  and Plan of
Merger,  dated as of December 1, 1999,  and amended as of December 21, 1999,  by
and between Webster and MECH  Financial,  Inc. (the  "Agreement").  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.  ss.  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  and
                       Pre-Effective Amendments No. 1 and No. 2 thereto.

                  2.   An executed copy of the Agreement.

                  3.   The  Second  Restated  Certificate  of  Incorporation  of
                       Webster,  as certified by the Secretary of Webster on the
                       date  hereof  as then  being  complete,  accurate  and in
                       effect.

                  4.   The Bylaws of Webster,  as certified by the  Secretary of
                       Webster  on the  date  hereof  as  then  being  complete,
                       accurate and in effect.

                  5.   Resolutions of the Board of Directors of Webster  adopted
                       at a meeting held on December ___,  1999, as certified by
                       the Secretary of Webster on the date hereof as then being
                       complete,  accurate  and in effect,  relating  to,  among
                       other things, the issuance of the Shares and arrangements
                       in connection therewith.

In our examination of the aforesaid  documents,  we have assumed the genuineness
of all signatures,  the legal capacity of all natural persons,  the accuracy and
completeness of all documents  submitted



to us, the authenticity of all original  documents,  and the conformity with the
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
the Delaware General  Corporation Law, as amended.  We express no opinion herein
as to any other laws,  statutes,  ordinances,  rules,  or  regulations.  As used
herein,  the term "Delaware  General  Corporation Law, as amended"  includes the
statutory  provisions  contained  therein,  all  applicable  provisions  of  the
Delaware Constitution and reported judicial decisions interpreting these laws.

                  Based upon, subject to and limited by the foregoing, we are of
the opinion that following (i) effectiveness of the Registration  Statement,  as
amended, (ii) issuance of the Shares pursuant to the terms of the Agreement, and
(iii) receipt by Webster of the  consideration  for the Shares  specified in the
Agreement and resolutions of the Board of Directors,  the Shares will be validly
issued,  fully paid and nonassessable  under the General  Corporation Law of the
State of Delaware.

                  This  opinion  letter  has  been  prepared  for  your  use  in
connection with the Registration  Statement and speaks as of the date hereof. We
assume no obligation to advise you of any changes in the foregoing subsequent to
the delivery of this opinion letter.

                  We hereby  consent  to the  filing of this  opinion  letter as
Exhibit 5.01 to the  Registration  Statement  and to the  reference to this firm
under the caption "Legal  Matters" in the prospectus  constituting a part 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,




                                                     HOGAN & HARTSON L.L.P.