STATE OF PENNSYLVANIA

COUNTY OF MERCER


POWER OF ATTORNEY


KNOW ALL MEN BY THESE PRESENTS, that I, Gary L. Guerrieri, an Executive Officer
of F.N.B. Corporation, a corporation organized and existing under the laws of
the State of Florida, do constitute and appoint James Orie, David Mogle, Scott
Free, Vince Calabrese and Brian Lilly as my true and lawful attornies-in-fact,
with full power of substitution, for me in any and all capacities, to sign,
pursuant to the requirements of Section 16 of the Securities Exchange Act of
1934, as amended, any report on Form 3, Form 4, or Form 5, respecting the
securities of F.N.B. Corporation and to file the same with the Securities and
Exchange Commission, together with all exhibits thereto and other documents in
connection therewith, and to sign on my behalf and in my stead, in any and all
capacities, any amendments to said reports, incorporating such changes as said
attornies-in-fact deems appropriate, hereby ratifying and confirming all that
said attornies-in-fact may do or cause to be done by virtue hereof.

The authority of my attorney-in-fact shall be effective until I expressly revoke
it and file same with the Securities and Exchange Commission.

I acknowledge that I have granted this power of attorney solely to make it more
convenient for me to comply with my reporting responsibilities under Section 16
of the Exchange Act, that my granting of this power of attorney does not relieve
me of any of my responsibilities to prepare and file on a timely basis all
reports that I may be required to file under said Section 16, and that neither
F.N.B. Corporation nor my attorney-in-fact has assumed, or shall be deemed to
assume, any of my responsibilities in that regard.
IN WITNESS WHEREOF, I have hereunto set my hand and seal this 25th day of June,
2008.



/s/Gary L. Guerrieri

Gary L. Guerrieri
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