UNITED STATES SECURITIES AND EXCHANGE COMMISSION Washington, D.C. 20549 SCHEDULE 13G/A Under The Securities Exchange Act of 1934 (Amendment No. 2)* United Insurance Holdings Corp. (formerly known as FMG Acquisition Corp.) ------------------------------------------------------ (Name of Issuer) Common Stock, par value $0.0001 per share ------------------------------------------------------ (Title of Class of Securities) 910710102 ------------------------------------------------------ (CUSIP Number) December 31, 2008 ------------------------------------------------------ (Date of Event Which Requires Filing of this Statement) Check the appropriate box to designate the rule pursuant to which this Schedule is filed: [ ] Rule 13d-1(b) [X] Rule 13d-1(c) [ ] Rule 13d-1(d) The remainder of this cover page shall be filled out for a reporting person's initial filing on this form with respect to the subject class of securities, and for any subsequent amendment containing information which would alter the disclosures provided in a prior cover page. The information required in the remainder of this cover page shall not be deemed to be "filed" for the purpose of Section 18 of the Securities Exchange Act of 1934 ("Act") or otherwise subject to the liabilities of that section of the Act but shall be subject to all other provisions of the Act (however, see the Notes). Page 1 of 11 Pages CUSIP No. 910710102 13G/A Page 2 of 11 Pages ----------------------------------------------------------------------- (1) NAMES OF REPORTING PERSONS D.B. Zwirn & Co., L.P. ----------------------------------------------------------------------- (2) CHECK THE APPROPRIATE BOX IF A MEMBER OF A GROUP (see instructions) (a) [X] (b) [ ] ----------------------------------------------------------------------- (3) SEC USE ONLY ----------------------------------------------------------------------- (4) CITIZENSHIP OR PLACE OF ORGANIZATION Delaware ----------------------------------------------------------------------- NUMBER OF (5) SOLE VOTING POWER 0 SHARES -------------------------------------------------------- BENEFICIALLY (6) SHARED VOTING POWER 0 OWNED BY -------------------------------------------------------- EACH (7) SOLE DISPOSITIVE POWER 0 REPORTING -------------------------------------------------------- PERSON WITH (8) SHARED DISPOSITIVE POWER 0 ----------------------------------------------------------------------- (9) AGGREGATE AMOUNT BENEFICIALLY OWNED BY EACH REPORTING PERSON 0 ----------------------------------------------------------------------- (10) CHECK BOX IF THE AGGREGATE AMOUNT IN ROW (9) EXCLUDES CERTAIN SHARES (see instructions) [ ] ----------------------------------------------------------------------- (11) PERCENT OF CLASS REPRESENTED BY AMOUNT IN ROW (9) 0% ----------------------------------------------------------------------- (12) TYPE OF REPORTING PERSON (see instructions) PN ----------------------------------------------------------------------- CUSIP No. 910710102 13G/A Page 3 of 11 Pages ----------------------------------------------------------------------- (1) NAMES OF REPORTING PERSONS D.B. Zwirn Special Opportunities Fund, L.P. ----------------------------------------------------------------------- (2) CHECK THE APPROPRIATE BOX IF A MEMBER OF A GROUP (see instructions) (a) [X] (b) [ ] ----------------------------------------------------------------------- (3) SEC USE ONLY ----------------------------------------------------------------------- (4) CITIZENSHIP OR PLACE OF ORGANIZATION Delaware ----------------------------------------------------------------------- NUMBER OF (5) SOLE VOTING POWER 0 SHARES -------------------------------------------------------- BENEFICIALLY (6) SHARED VOTING POWER 0 OWNED BY -------------------------------------------------------- EACH (7) SOLE DISPOSITIVE POWER 0 REPORTING -------------------------------------------------------- PERSON WITH (8) SHARED DISPOSITIVE POWER 0 ----------------------------------------------------------------------- (9) AGGREGATE AMOUNT BENEFICIALLY OWNED BY EACH REPORTING PERSON 0 ----------------------------------------------------------------------- (10) CHECK BOX IF THE AGGREGATE AMOUNT IN ROW (9) EXCLUDES CERTAIN SHARES (see instructions) [ ] ----------------------------------------------------------------------- (11) PERCENT OF CLASS REPRESENTED BY AMOUNT IN ROW (9) 0% ----------------------------------------------------------------------- (12) TYPE OF REPORTING PERSON (see instructions) PN ----------------------------------------------------------------------- CUSIP No. 910710102 13G/A Page 4 of 11 Pages ----------------------------------------------------------------------- (1) NAMES OF REPORTING PERSONS D.B. Zwirn Special Opportunities Fund, Ltd. ----------------------------------------------------------------------- (2) CHECK THE APPROPRIATE BOX IF A MEMBER OF A GROUP (see instructions) (a) [X] (b) [ ] ----------------------------------------------------------------------- (3) SEC USE ONLY ----------------------------------------------------------------------- (4) CITIZENSHIP OR PLACE OF ORGANIZATION Cayman Islands, British West Indies ----------------------------------------------------------------------- NUMBER OF (5) SOLE VOTING POWER 0 SHARES -------------------------------------------------------- BENEFICIALLY (6) SHARED VOTING POWER 0 OWNED BY -------------------------------------------------------- EACH (7) SOLE DISPOSITIVE POWER 0 REPORTING -------------------------------------------------------- PERSON WITH (8) SHARED DISPOSITIVE POWER 0 ----------------------------------------------------------------------- (9) AGGREGATE AMOUNT BENEFICIALLY OWNED BY EACH REPORTING PERSON 0 ----------------------------------------------------------------------- (10) CHECK BOX IF THE AGGREGATE AMOUNT IN ROW (9) EXCLUDES CERTAIN SHARES (see instructions) [ ] ----------------------------------------------------------------------- (11) PERCENT OF CLASS REPRESENTED BY AMOUNT IN ROW (9) 0% ----------------------------------------------------------------------- (12) TYPE OF REPORTING PERSON (see instructions) CO ----------------------------------------------------------------------- CUSIP No. 910710102 13G/A Page 5 of 11 Pages ----------------------------------------------------------------------- (1) NAMES OF REPORTING PERSONS DBZ GP, LLC ----------------------------------------------------------------------- (2) CHECK THE APPROPRIATE BOX IF A MEMBER OF A GROUP (see instructions) (a) [X] (b) [ ] ----------------------------------------------------------------------- (3) SEC USE ONLY ----------------------------------------------------------------------- (4) CITIZENSHIP OR PLACE OF ORGANIZATION Delaware ----------------------------------------------------------------------- NUMBER OF (5) SOLE VOTING POWER 0 SHARES -------------------------------------------------------- BENEFICIALLY (6) SHARED VOTING POWER 0 OWNED BY -------------------------------------------------------- EACH (7) SOLE DISPOSITIVE POWER 0 REPORTING -------------------------------------------------------- PERSON WITH (8) SHARED DISPOSITIVE POWER 0 ----------------------------------------------------------------------- (9) AGGREGATE AMOUNT BENEFICIALLY OWNED BY EACH REPORTING PERSON 0 ----------------------------------------------------------------------- (10) CHECK BOX IF THE AGGREGATE AMOUNT IN ROW (9) EXCLUDES CERTAIN SHARES (see instructions) [ ] ----------------------------------------------------------------------- (11) PERCENT OF CLASS REPRESENTED BY AMOUNT IN ROW (9) 0% ----------------------------------------------------------------------- (12) TYPE OF REPORTING PERSON (see instructions) OO ----------------------------------------------------------------------- CUSIP No. 910710102 13G/A Page 6 of 11 Pages ----------------------------------------------------------------------- (1) NAMES OF REPORTING PERSONS Zwirn Holdings, LLC ----------------------------------------------------------------------- (2) CHECK THE APPROPRIATE BOX IF A MEMBER OF A GROUP (see instructions) (a) [X] (b) [ ] ----------------------------------------------------------------------- (3) SEC USE ONLY ----------------------------------------------------------------------- (4) CITIZENSHIP OR PLACE OF ORGANIZATION Delaware ----------------------------------------------------------------------- NUMBER OF (5) SOLE VOTING POWER 0 SHARES -------------------------------------------------------- BENEFICIALLY (6) SHARED VOTING POWER 0 OWNED BY -------------------------------------------------------- EACH (7) SOLE DISPOSITIVE POWER 0 REPORTING -------------------------------------------------------- PERSON WITH (8) SHARED DISPOSITIVE POWER 0 ----------------------------------------------------------------------- (9) AGGREGATE AMOUNT BENEFICIALLY OWNED BY EACH REPORTING PERSON 0 ----------------------------------------------------------------------- (10) CHECK BOX IF THE AGGREGATE AMOUNT IN ROW (9) EXCLUDES CERTAIN SHARES (see instructions) [ ] ----------------------------------------------------------------------- (11) PERCENT OF CLASS REPRESENTED BY AMOUNT IN ROW (9) 0% ----------------------------------------------------------------------- (12) TYPE OF REPORTING PERSON (see instructions) OO ----------------------------------------------------------------------- CUSIP No. 910710102 13G/A Page 7 of 11 Pages ----------------------------------------------------------------------- (1) NAMES OF REPORTING PERSONS Daniel B. Zwirn ----------------------------------------------------------------------- (2) CHECK THE APPROPRIATE BOX IF A MEMBER OF A GROUP (see instructions) (a) [X] (b) [ ] ----------------------------------------------------------------------- (3) SEC USE ONLY ----------------------------------------------------------------------- (4) CITIZENSHIP OR PLACE OF ORGANIZATION United States ----------------------------------------------------------------------- NUMBER OF (5) SOLE VOTING POWER 0 SHARES -------------------------------------------------------- BENEFICIALLY (6) SHARED VOTING POWER 0 OWNED BY -------------------------------------------------------- EACH (7) SOLE DISPOSITIVE POWER 0 REPORTING -------------------------------------------------------- PERSON WITH (8) SHARED DISPOSITIVE POWER 0 ----------------------------------------------------------------------- (9) AGGREGATE AMOUNT BENEFICIALLY OWNED BY EACH REPORTING PERSON 0 ----------------------------------------------------------------------- (10) CHECK BOX IF THE AGGREGATE AMOUNT IN ROW (9) EXCLUDES CERTAIN SHARES (see instructions) [ ] ----------------------------------------------------------------------- (11) PERCENT OF CLASS REPRESENTED BY AMOUNT IN ROW (9) 0% ----------------------------------------------------------------------- (12) TYPE OF REPORTING PERSON (see instructions) IN ----------------------------------------------------------------------- CUSIP No. 910710102 13G/A Page 8 of 11 Pages This Amendment No. 2 (this "Amendment") amends the statement on Schedule 13G filed on December 4, 2007, as amended by Amendment No. 1 filed on January 25, 2008 (the "Original Schedule 13G" and the Original Schedule 13G as amended, the "Schedule 13G") with respect to the shares of Common Stock, par value $0.0001 per share (the "Shares") of United Insurance Holdings Corp. (formerly known as FMG Acquisition Corp.), a Delaware corporation (the "Company"). Capitalized terms used herein and not otherwise defined in this Amendment have the meanings set forth in the Schedule 13G. This Amendment amends and restates Items 1, 2(e), 4 and 5 in their entirety as set forth below. Item 1. (a) Name of Issuer United Insurance Holdings Corp., a Delaware corporation (the "Issuer") (b) Address of Issuer's Principal Executive Offices: 360 Central Avenue, Suite 900 St. Petersburg, FL 33701 Item 2 (e) CUSIP Number 910710102 Item 4. Ownership (a) Amount Beneficially Owned As of the date of this filing, (i) D.B. Zwirn & Co., L.P., (ii) DBZ GP, LLC, (iii) Zwirn Holdings, LLC, (iv) Daniel B. Zwirn, (v) D.B. Zwirn Special Opportunities Fund, L.P. and (vi) D.B. Zwirn Special Opportunities Fund, Ltd. no longer beneficially own any Shares (each entity referred to in (v) through (vi) is herein referred to as a "Fund" and, collectively, as the "Funds"). D.B. Zwirn & Co., L.P. is the manager of the Funds, and consequently has voting control and investment discretion over the Shares held by the Fund. Daniel B. Zwirn is the managing member of and thereby controls Zwirn Holdings, LLC, which in turn is the managing member of and thereby controls DBZ GP, LLC, which in turn is the general partner of and thereby controls D.B. Zwirn & Co., L.P. (b) Percent of Class As of the date of this filing, (i) D.B. Zwirn & Co., L.P., (ii) DBZ GP, LLC, (iii) Zwirn Holdings, LLC, (iv) Daniel B. Zwirn,(v) D.B. Zwirn Special Opportunities Fund, L.P. and (vi) D.B. Zwirn Special Opportunities Fund, Ltd. no longer beneficially own any Shares. (c) Number of shares as to which such person has: (i) Sole power to vote or to direct the vote: See Item 4(a) CUSIP No. 910710102 13G/A Page 9 of 11 Pages (ii) Shared power to vote or to direct the vote See Item 4(a) (iii) Sole power to dispose or to direct the disposition of See Item 4(a) (iv) Shared power to dispose or to direct the disposition of See Item 4(a) Item 5. Ownership of Five Percent or Less of a Class If this statement is being filed to report the fact that as of the date hereof the reporting person has ceased to be the beneficial owner of more than five percent of the class of securities, check the following: [X] Exhibit I: Power of attorney for Daniel B. Zwirn dated November 7, 2007. CUSIP No. 910710102 13G/A Page 10 of 11 Pages SIGNATURE After reasonable inquiry and to the best of its knowledge and belief, each of the undersigned certifies that the information with respect to it set forth in this statement is true, complete, and correct. Dated: January 22, 2009 D.B. ZWIRN SPECIAL OPPORTUNITIES D.B. ZWIRN SPECIAL OPPORTUNITIES FUND, LTD. FUND, L.P. By: D.B. Zwirn & Co., L.P. By: D.B. Zwirn & Co., L.P. By: DBZ GP, LLC, By: DBZ GP, LLC, its General Partner its General Partner By: Zwirn Holdings, LLC, By: Zwirn Holdings, LLC, its Managing Member its Managing Member D.B. ZWIRN & CO., L.P. ZWIRN HOLDINGS, LLC By: DBZ GP, LLC, its General Partner By: Zwirn Holdings, LLC, its Managing Member DBZ GP, LLC By: Zwirn Holdings, LLC, its Managing Member By: /s/ Lawrence D. Cutler --------------------------- Name: Lawrence D. Cutler Title: Authorized Signatory /s/ Lawrence D. Cutler ------------------------------ LAWRENCE D. CUTLER, as Attorney-in- Fact for Daniel B. Zwirn CUSIP No. 910710102 13G/A Page 11 of 11 Pages EXHIBIT I POWER OF ATTORNEY The undersigned hereby appoints David C. Lee and Lawrence D. Cutler, or either of them, his true and lawful attorney-in-fact and agent to execute and file with the Securities and Exchange Commission any Schedule 13D, Schedule 13G, Form 3, Form 4, Form 5, any amendments thereto and any related documentation which may be required to be filed in his individual capacity as a result of the undersigned's beneficial ownership of, or participation in a group with respect to, securities directly or indirectly beneficially owned by D.B. Zwirn & Co., L.P. or any of its affiliates, and granting unto said attorney-in-fact and agent full power and authority to do and perform each and every act and thing which he might or could do in person, hereby ratifying and confirming all that said attorney-in-fact and agent may lawfully do or cause to be done by virtue hereof. The authority of David C. Lee and Lawrence D. Cutler, or either of them, under this Power of Attorney shall continue with respect to the undersigned until the undersigned is no longer required to file Schedule l3Ds, Schedule l3Gs, Forms 3, Forms 4, or Forms 5 unless revoked earlier in writing. Date: November 7, 2007 /s/ Daniel B. Zwirn --------------------------- Daniel B. Zwirn