VOTER'S CERTIFICATE
I, (Print Name) , do solemnly swear (or affirm) that I am a qualified voter in this election and that I have not and will not vote more than one ballot in this election.
I understand that failure to sign this certificate and give my residence address will invalidate my ballot.
(Signature)
(Residence Address)
The supervisor of elections shall verify the signature of each elector on the return mailing envelope with the signature on the elector's registration records. Such verification may commence at any time prior to the canvass of votes. The supervisor of elections shall safely keep the ballot unopened in his or her office until the county canvassing board canvasses the vote. If the supervisor of elections determines that an elector to whom a replacement ballot has been issued under subsection (4) has voted more than once, the canvassing board shall determine which ballot, if any, is to be counted.
Fla. Stat. § 101.6103