All grants, conveyances, or assignments of trust or confidence of or in any lands, tenements, or hereditaments, or of any estate or interest therein, shall be by deed signed and delivered, in the presence of two subscribing witnesses, by the party granting, conveying, or assigning, or by the party's attorney or agent thereunto lawfully authorized, or by last will and testament duly made and executed, or else the same shall be void and of no effect.
Fla. Stat. § 689.06