Motor Vehicle, Mobile Home, Off- Highway or Vessel Description. Year. Seller and buyer's names and addresses, signatures, and date of signing; Sell date and price.Bill of Sale for the Seller of the Vehicle. 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. A motor vehicle bill of sale is between a buyer and a seller of a car, truck, or motorcycle. It is signed as the last step in the sales process. Create a bill of sale in Florida for automobile or vehicle transaction. DEpending on the County, you also have to fill out the bill of sale form and tag return and send to the County Tax Office.