The purchaser's signature in section 3 is optional. A Florida bill of sale is a document used to transfer the ownership of personal property from a seller to a buyer.Sign and display requirements. THIS PURCHASE AND SALE AGREEMENT, (the "Agreement") is made and entered into this _____ day of. Learn about Florida Bill of Sale requirements. Get forms and templates to document the sale of items such as cars, boats, horses, firearms, and more. Edit, sign, and share vehicle purchase agreement with deposit online. No need to install software, just go to DocHub, and sign up instantly and for free.