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EXHIBIT 10.10 Reinsurance Commutation and Release Agreement This Reinsurance Commutation and Release Agreement (hereinafter referred to as the
Agreement), is entered into by and between Philadelphia Insurance Company, Philadelphia Indemnity
Insurance Company, both of Bala Cynwyd, Pennsylvania, Mobile USA Insurance Company, Liberty
American Insurance Company, both of Pinellas Park, Florida, and any and all other companies which
are now or may hereafter become member companies of Philadelphia Consolidated Holding Corporation
(hereinafter referred to collectively as the Company) and Swiss Reinsurance America Corporation,
Armonk, New York (hereinafter referred to as Swiss Re). The Company and Swiss Re are sometimes
referred to individually as a Party and collectively as the Parties. WHEREAS, the Company and Swiss Re entered into the Whole Account Net Quota Share Reinsurance
Contract, effective April 1, 2003 and Addendum No. 1 thereto, effective January 1, 2004
(hereinafter referred to collectively as the Treaty); WHEREAS, the Company ceded and Swiss Re assumed a 55.0% share in the terms and conditions under the
Treaty for the period April 1, 2003 to December 31, 2003 (the 2003 Contract Year); WHEREAS, the Company and Swiss Re have agreed to cancel and commute the 2003 Contract Year as of
January 1, 2005, fully and finally settle, commute and discharge any and all of their respective
obligations and liabilities under the 2003 Contract Year, and enter into mutual releases relating
thereto; NOW THEREFORE, in consideration of the covenants, assumptions, promises, payments, agreements and
other good and valuable consideration recited as set forth herein, the sufficiency of which is
acknowledged, the Parties agree to the following: Article I  Consideration In consideration for commuting the 2003 Contract Year, the Company shall receive a commutation
profit commission of $42,222,483.60 which shall be deemed to equal 55.0% of the balance of the
Funds Withheld Account associated with the 2003 Contract Year. Swiss Re shall retain 55.0% of the
Reinsurers Expense Allowance paid under the Treaty (being 55.0% of 4.0% of the 2003 Contract Year
Ceded Net Written Premium). Such amounts shall be deemed to be fully earned premium by Swiss Re.
Further, the Company acknowledges that receipt of such commutation profit commission constitutes a
full and final settlement of all obligations of Swiss Re to the Company under the 2003 Contract
Year, and that no further amounts are or will be owed to the Company by Swiss Re for the 2003
Contract Year. Article II  Mutual Release Each Party hereto, on behalf of itself and its predecessors, successors, assigns, affiliates
and subsidiaries, and their past, present and future officers, directors, shareholders, employees,
agents, receivers, trustees, attorneys, and legal representatives hereby releases, acquits, and
forever discharges the other Party, its (BENFIELD LOGO)




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predecessors, successors, assigns, affiliates and
subsidiaries, and their past, present and future officers, directors, shareholders, employees,
agents, receivers, trustees, attorneys, and legal representatives from any and all claims, loss
debts, demands, causes of action, liabilities, obligations, costs, disbursements, fees, attorneys
fees, expenses, damages, and injuries of every kind, nature and description based on, relating to,
or arising out of the 2003 Contract Year, including, but not limited to, any common-law or
statutory claims for fraud and misrepresentation, or statutory RICO claims, whether or not now
known, suspected, reported, or claimed whether fixed or contingent, currently existing or arising
in the future. Article III  Representations and Warranties Both Parties to this Agreement hereby represent and warrant that:  1.
    All judicial, statutory, regulatory, administrative, and/or ministerial actions necessary for
the execution, delivery, and performance of this Agreement by each Party have been or will be
duly taken, and that no further action, consent or approval of any person, entity, court or
other governmental authority is required by either Party for the lawful execution or delivery
of this Agreement or the lawful performance and consummation of the transactions contemplated
herein, nor will such transactions violate any provision of any law or conflict with any
order, writ, injunction, or decree of any court or other governmental authority.  2.
    The individual executing this Agreement on behalf of each Party has the full legal right,
power, and authority to execute and deliver this Agreement on behalf of such Party.  3.
    The Parties represent each to the other that they have not assigned to third parties any
claims intended to be released by this Agreement. The Parties are not aware of any third
party who might assert some interest in any claims intended to be released hereunder.  4.
    The Company and Swiss Re further agree and stipulate that they have completely read, fully
understood, and voluntarily accepted the terms of this Agreement, and that:  a.
    By entering into this Agreement, neither the Company nor Swiss Re is making any
representations as to any fact or circumstance other than those contained within this
Agreement;b.
    Neither the Company nor Swiss Re is relying upon the other, nor upon any person,
third party, or anything other than its own independent knowledge and judgment and the
advice of its own counsel in entering into this Agreement; andc.
    Both Parties acknowledge that there is a risk that subsequent to execution of this
Agreement certain facts, circumstances, or legal decisions may be discovered, established
or adjudicated which were different from, less than, or greater than that believed or
known by one of the Parties hereto at the time of the execution of this Agreement. It is
further understood that the Parties hereby assume such risk and agree that this Agreement
shall apply under any such different, unknown, or unanticipated conditions. (BENFIELD LOGO)




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Article IV  Confidentiality and Nondisclosure The Company and Swiss Re hereby expressly agree that the terms and conditions of this
Agreement shall be CONFIDENTIAL between Parties and shall not be disclosed by either Party without
the prior written consent of the other, except to the broker of record of the Treaty, or where
required by Order of a court, administrative tribunal, regulatory body, or arbitration panel. In
the event disclosure is to be made pursuant to this Article, the disclosing Party shall take all
steps necessary to preserve the confidentiality of such information, including giving prior written
notice to the other Party, specifying the information to be disclosed, the manner of disclosure,
and to whom disclosure is to be made. The other, non-disclosing Party shall be provided a
reasonable opportunity to oppose such disclosure. Any third party to whom disclosure is made shall
be bound by this Article and shall so state in writing to the Parties hereto prior to disclosure. Article V  General Conditions  A.
    This Agreement is binding on and shall inure to the benefit of all Parties hereto and their
representative officers, directors, employees, agents, attorneys, shareholders, predecessors,
parents, affiliates, subsidiaries, successors and assigns (including without limitation, any
receiver, conservator, rehabilitator, liquidator, provisional liquidator, trustee or other
statutory successor or quasi-statutory successor) upon its execution.  B.
    The Parties specifically agree and acknowledge that the consideration for the commutation is
being paid to the Company in good faith and constitutes fair consideration for the discharge
of amounts allegedly owing now or potentially owing in the future by Swiss Re to the Company
for the 2003 Contract Year.  C.
    This Agreement constitutes the entire understanding by and between the Parties hereto,
superseding all negotiations, prior discussions, representations, promises, and
understandings, oral or written, expressed or implied, made prior to or contemporaneous with
its execution. This Agreement may only be modified or amended by written agreement, entered
into subsequent to the date of this commutation and duly executed by the Parties hereto.  D.
    The failure of the Parties to enforce any provision of this Agreement shall not be construed
as a waiver of such provision or any other provision of this Agreement. No waiver of any
provision of this Agreement shall be deemed a waiver of any of its other terms, nor shall such
waiver constitute a continuing waiver.  E.
    This Agreement may be executed and delivered in multiple counterparts, each of which, when so
executed and delivered, shall be an original, but such counterparts shall together constitute
but one of the same instrument and Agreement. (BENFIELD LOGO)




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F.
    This Agreement shall be interpreted, construed, and enforced in accordance with the laws of
the State of New York (without giving effect to conflicts of law principles). In Witness Whereof,the Parties hereto by their respective duly authorized representatives have
executed this Agreement as of the dates undermentioned at: Bala Cynwyd, Pennsylvania,this ___9th__ day of __February__________ in the year _2005___. _Christopher
J. Maguire, Executive VicePresident & Chief U/W
Philadelphia Insurance Company
Philadelphia Indemnity Insurance Company
Mobile USA Insurance Company
Liberty American Insurance Company Calabasas, California,
      this __10th__ day of _____February______ in the year _2005_. Stephen C. Kolakowski, Senior Vice President & CFO__
Swiss Re Underwriters Agency, Inc.  (BENFIELD LOGO)