Exhibit 5.1









                                 April 19, 2002






                                                                  (212) 701-3000


Delphi Financial Group, Inc.
1105 North Market Street
Suite 1230
Wilmington, Delaware 19899

Ladies and Gentlemen:

     We have acted as special counsel to Delphi Financial Group, Inc., a
Delaware corporation (the "Company"), in connection with the preparation of:

     1. the Registration Statement on Form S-3 to be filed with the Securities
and Exchange Commission (the "Commission") on the date hereof (the "Registration
Statement"), pursuant to which (A) the Company proposes to issue and/or sell
from time to time (i) shares of its Class A Common Stock, par value $.01 per
share (the "Class A Common Stock"), (ii) shares of its preferred stock, par
value $.01 per share (the "Preferred Stock"), (iii) debt securities consisting
of debentures, notes or other evidences of indebtedness representing unsecured,
unsubordinated obligations of the Company (the "Senior Debt Securities"), (iv)
debt securities consisting of debentures, notes or other evidences of
indebtedness representing unsecured, subordinated obligations of the Company
(the "Subordinated Debt Securities"), (v) warrants to purchase Class A Common
Stock (the "Class A Common Stock Warrants"), (vi) deferrable interest debt
securities consisting of debentures, notes or other evidences of indebtedness
representing unsecured, subordinated obligations of the Company (the
"Subordinated Deferrable Interest Debentures") and (vii) guarantees of the Trust
Preferred Securities (as defined below) (the "Trust Preferred Securities
Guarantee"); and (B) Delphi Finance Trust I, a Delaware business trust (the
"Trust" and, together with the Company, the "Registrants"), proposes to issue
and sell from time to time preferred undivided interests in the assets of the
Trust (the "Trust Preferred Securities"), which will have the benefit of the
Trust Preferred Securities Guarantee;



                                       -2-


     2. the form of indenture, to be dated on or about the date of first
issuance of Senior Debt Securities thereunder (the "Senior Debt Indenture"),
between the Company and the trustee to be named thereunder (the "Senior Debt
Trustee");

     3. the form of indenture, to be dated on or about the date of first
issuance of Subordinated Debt Securities thereunder (the "Subordinated Debt
Indenture"), between the Company and trustee to be named thereunder (the
"Subordinated Debt Trustee");

     4. the form of indenture, to be dated on or about the date of first
issuance of Subordinated Deferrable Interest Debentures thereunder (the
"Subordinated Deferrable Interest Debentures Indenture" and, collectively with
the Senior Debt Indenture and the Subordinated Debt Indenture, the
"Indentures"), between the Company and the trustee to be named thereunder (the
"Subordinated Deferrable Interest Debentures Trustee");

     5. the Declaration of Trust, dated as of April [ ], 2002, among the Company
and the trustees of the Trust named therein;

     6. the form of amended and restated Declaration of Trust, to be dated on or
about the date of first issuance of Trust Preferred Securities (the "Amended and
Restated Declaration of Trust"), among the Company and the trustees of the Trust
to be named therein; and

     7. the form of trust preferred securities guarantee agreement, to be dated
on or about the date of first issuance of a Trust Preferred Securities Guarantee
thereunder (the "Trust Preferred Securities Guarantee Agreement"), between the
Company and the trustee named therein.

     The Class A Common Stock, the Preferred Stock, the Senior Debt Securities,
the Subordinated Debt Securities, the Class A Common Stock Warrants, the
Subordinated Deferrable Interest Debentures, the Trust Preferred Securities and
the Trust Preferred Securities Guarantee are referred to herein collectively as
the "Offered Securities." The Offered Securities being registered under the
Registration Statement may be offered on a continuous or delayed basis pursuant
to the provisions of Rule 415 of the Securities Act of 1933, as amended (the
"Securities Act").

     In rendering the opinions set forth herein, we have examined originals,
photocopies or conformed copies certified to our satisfaction of corporate
records, agreements, instruments and documents of the Registrants, certificates
of public officials and other certificates and opinions and have made such other
investigations as we have deemed necessary in connection with the opinions set
forth herein. In our examination, we have assumed (a) the due organization and
valid existence of each of the Registrants, (b) the due authorization,
execution, authentication and delivery by all persons of each of the
Registration Statement and each of the documents related thereto, (c) that each
of such parties has the legal power to act in the respective capacity or
capacities in which it is to act thereunder, (d) the authenticity of all
documents submitted to us as originals, (e) the conformity to the original
documents of all documents submitted to us as copies and (f) the genuineness of
all signatures on the Registration Statement and all documents submitted to us.



                                       -3-


     Based upon and subject to the foregoing and assuming that (i) the
Registration Statement and any amendments thereto (including any post-effective
amendments) will have become effective and comply with all applicable laws at
the time the Offered Securities are offered or issued as contemplated by the
Registration Statement, (ii) a prospectus supplement will have been prepared and
filed with the Commission describing the Offered Securities offered thereby and
will comply with all applicable laws, (iii) all Offered Securities will be
issued and sold in compliance with applicable federal and state securities laws
and in the manner stated in the Registration Statement and the appropriate
prospectus supplement, (iv) a definitive purchase, underwriting or similar
agreement and any other necessary agreement with respect to any Offered
Securities will have been duly authorized and validly executed and delivered by
each applicable Registrant and the other party or parties thereto, (v) the
applicable Indenture(s), the Amended and Restated Declaration of Trust and/or
the Preferred Securities Guarantee Agreement, as the case may be, will have been
duly qualified under the Trust Indenture Act of 1939, as amended, and (vi) any
Offered Securities issuable upon conversion, exercise or exchange of any Offered
Securities being offered or issued will be duly authorized, created and, if
appropriate, reserved for issuance upon such conversion, exercise or exchange,
we advise you that in our opinion:

          1. Insofar as the laws of the State of New York are applicable
     thereto, when (A) the execution of the Senior Debt Indenture has been duly
     authorized by the Company by appropriate action, (B) the Senior Debt
     Indenture, in the form filed as an exhibit to the Registration Statement,
     has been duly executed and delivered by the Company and the Senior Debt
     Trustee, (C) the board of directors, including any appropriate committee
     appointed thereby, and appropriate officers of the Company have taken all
     necessary action to approve the issuance and terms of the Senior Debt
     Securities and related matters, (D) the terms of the Senior Debt Securities
     and their issuance and sale have been duly established in conformity with
     the Senior Debt Indenture so as not to violate any applicable law or the
     Restated Certificate of Incorporation of the Company, as amended, or result
     in default under or breach of any agreement or instrument binding upon the
     Company and so as to comply with any requirement or restriction imposed by
     any court or governmental body having jurisdiction over the Company and (E)
     the Senior Debt Securities, in the form established in accordance with the
     Senior Debt Indenture filed as an exhibit to the Registration Statement,
     have been duly executed and delivered by the Company and authenticated by
     the Senior Debt Trustee in accordance with the provisions of the Senior
     Debt Indenture and delivered and paid for as contemplated by any applicable
     purchase, underwriting or similar agreement and the Registration Statement,
     the Senior Debt Securities will constitute valid and legally binding
     obligations of the Company, entitled to the benefits of the Senior Debt
     Indenture and enforceable against the Company in accordance with their
     terms, except that (a) the enforceability thereof may be subject to (i)
     bankruptcy, insolvency, reorganization, moratorium, fraudulent conveyance
     or other similar laws now or hereafter in effect relating to or affecting
     creditors' rights or remedies generally and (ii) general principles of
     equity and to the discretion of the court before which any proceedings
     therefor may be brought (regardless of whether enforcement is sought in a
     proceeding at law or in equity) and (b) the enforceability of provisions
     imposing liqui-



                                       -4-


     dated damages, penalties or an increase in interest rate upon the
     occurrence of certain events may be limited in certain circumstances ((a)
     and (b) together, the "Enforceability Exceptions").

          2. Insofar as the laws of the State of New York are applicable
     thereto, when (A) the execution of the Subordinated Debt Indenture has been
     duly authorized by the Company by appropriate action, (B) the Subordinated
     Debt Indenture, in the form filed as an exhibit to the Registration
     Statement, has been duly executed and delivered by the Company and the
     Subordinated Debt Trustee, (C) the board of directors, including any
     appropriate committee appointed thereby, and appropriate officers of the
     Company have taken all necessary action to approve the issuance and terms
     of the Subordinated Debt Securities and related matters, (D) the terms of
     the Subordinated Debt Securities and their issuance and sale have been duly
     established in conformity with the Subordinated Debt Indenture so as not to
     violate any applicable law or the Restated Certificate of Incorporation of
     the Company, as amended, or result in default under or breach of any
     agreement or instrument binding upon the Company and so as to comply with
     any requirement or restriction imposed by any court or governmental body
     having jurisdiction over the Company and (E) the Subordinated Debt
     Securities, in the form established in accordance with the Subordinated
     Debt Indenture filed as an exhibit to the Registration Statement, have been
     duly executed and delivered by the Company and authenticated by the
     Subordinated Debt Trustee in accordance with the provisions of the
     Subordinated Debt Indenture and delivered and paid for as contemplated by
     any applicable purchase, underwriting or similar agreement and the
     Registration Statement, the Subordinated Debt Securities will constitute
     valid and legally binding obligations of the Company, entitled to the
     benefits of the Subordinated Debt Indenture and enforceable against the
     Company in accordance with their terms, subject to the Enforceability
     Exceptions.

          3. Insofar as the laws of the State of New York are applicable
     thereto, when (A) the execution of the Subordinated Deferrable Interest
     Debentures Indenture has been duly authorized by the Company by appropriate
     action, (B) the Subordinated Deferrable Interest Debentures Indenture, in
     the form filed as an exhibit to the Registration Statement, has been duly
     executed and delivered by the Company and the Subordinated Deferrable
     Interest Debentures Trustee, (C) the board of directors, including any
     appropriate committee appointed thereby, and appropriate officers of the
     Company have taken all necessary action to approve the issuance and terms
     of the Subordinated Deferrable Interest Debentures and related matters, (D)
     the terms of the Subordinated Deferrable Interest Debentures and their
     issuance and sale have been duly established in conformity with the
     Subordinated Deferrable Interest Debentures Indenture so as not to violate
     any applicable law or the Restated Certificate of Incorporation of the
     Company, as amended, or result in default under or breach of any agreement
     or instrument binding upon the Company and so as to comply with any
     requirement or restriction imposed by any court or governmental body having
     jurisdiction over the Company and (E) the Subordinated Deferrable Interest
     Debentures, in the form established in accordance with the Subordinated
     Deferrable In-



                                      -4-


     terest Debentures Indenture filed as an exhibit to the Registration
     Statement, have been duly executed and delivered by the Company and
     authenticated by the Subordinated Deferrable Interest Debentures Trustee in
     accordance with the provisions of the Subordinated Deferrable Interest
     Debentures Indenture and delivered and paid for as contemplated by any
     applicable purchase, underwriting or similar agreement and the Registration
     Statement, the Subordinated Deferrable Interest Debentures will constitute
     valid and legally binding obligations of the Company, entitled to the
     benefits of the Subordinated Deferrable Interest Debentures Indenture and
     enforceable against the Company in accordance with their terms, subject to
     the Enforceability Exceptions.

          4. Insofar as the laws of the State of New York are applicable
     thereto, when (A) the execution of the Trust Preferred Securities Guarantee
     Agreement has been duly authorized by the Company by appropriate action,
     (B) the Trust Preferred Securities Guarantee Agreement, in the form filed
     as an exhibit to the Registration Statement, has been duly executed and
     delivered by the Company and the trustee named therein, (C) the board of
     directors, including any appropriate committee appointed thereby, and
     appropriate officers of the Company have taken all necessary action to
     approve the issuance and terms of the Trust Preferred Securities Guarantee
     Agreement and related matters, (D) the terms of the Trust Preferred
     Securities and their issuance and sale and the terms of the Trust Preferred
     Securities Guarantee Agreement have been duly established in conformity
     with the Amended and Restated Declaration of Trust so as not to violate any
     applicable law or the Restated Certificate of Incorporation of the Company,
     as amended, or the Certificate of Trust or the Amended and Restated
     Declaration of Trust, or result in default under or breach of any agreement
     or instrument binding upon the Company or the Trust and so as to comply
     with any requirement or restriction imposed by any court or governmental
     body having jurisdiction over the Company or the Trust and (E) the Trust
     Preferred Securities, in the form established in accordance with the
     Amended and Restated Declaration of Trust filed as an exhibit to the
     Registration Statement, have been duly executed and delivered by the Trust
     in accordance with the provisions of the Amended and Restated Declaration
     of Trust and delivered and paid for as contemplated by any applicable
     purchase, underwriting or similar agreement and the Registration Statement,
     the Trust Preferred Securities Guarantee Agreement will constitute a valid
     and legally binding obligation of the Company, enforceable against the
     Company in accordance with its terms, subject to the Enforceability
     Exceptions.

          5. Insofar as the laws of the State of New York are applicable
     thereto, when (A) the execution of the warrant agreement pursuant to which
     the Class A Common Stock Warrants will be issued (the "Warrant Agreement")
     has been duly authorized by the Company by appropriate action, (B) the
     Warrant Agreement has been duly executed and delivered by the Company and
     the warrant agent thereunder, (C) the board of directors, including any
     appropriate committee appointed thereby, and appropriate officers of the
     Company have taken all necessary action to approve the issuance and terms
     of the Class A Common Stock Warrants and related matters, including,
     without limitation, any neces-



                                      -6-


     sary reservation of shares of Class A Common Stock issuable upon exercise
     of Class A Common Stock Warrants, (D) the terms of the Class A Common Stock
     Warrants and their issuance and sale have been duly established in
     conformity with the Warrant Agreement so as not to violate any applicable
     law or the Restated Certificate of Incorporation of the Company, as
     amended, or result in default under or breach of any agreement or
     instrument binding upon the Company and so as to comply with any
     requirement or restriction imposed by any court or governmental body having
     jurisdiction over the Company and (E) the Class A Common Stock Warrants, in
     the form included in the Warrant Agreement, have been duly executed and
     delivered by the Company and countersigned by the warrant agent thereunder
     in accordance with the provisions of the Warrant Agreement and delivered
     and paid for as contemplated by any applicable purchase, underwriting or
     similar agreement and the Registration Statement, the Class A Common Stock
     Warrants will constitute valid and legally binding obligations of the
     Company, enforceable against the Company in accordance with their terms,
     subject to the Enforceability Exceptions.

     In giving our opinion, we are relying, without independent verification (A)
as to all matters of fact, upon certificates and written statements of officers
of the Registrants and (B) as to all matters of Delaware law, upon the opinion
of Morris, Nichols, Arsht & Tunnell dated of even date herewith and filed as
Exhibit 5.2 to the Registration Statement.

     We are members of the Bar of the State of New York and do not purport to be
experts in or to express any opinion concerning the laws of any jurisdictions
other than the laws of the State of New York and the federal laws of the United
States of America. In rendering the opinions set forth above, we express no
opinion as to the laws of any jurisdictions other than the laws of the State of
New York and the federal laws of the United States.

     We hereby consent to the reference to our firm in the Registration
Statement under the caption "Legal Opinions" and to the inclusion of this
opinion as an exhibit to the Registration Statement. Our consent to such
reference does not constitute a consent under Section 7 of the Securities Act,
as in consenting to such reference we have not certified any part of the
Registration Statement and do not otherwise come within the categories of
persons whose consent is required under Section 7 of the Securities Act or under
the rules and regulations of the Commission thereunder.

                                     Very truly yours,

                                     /s/ Cahill Gordon & Reindel