Motor Vehicle, Mobile Home, Off- Highway or Vessel Description. Year. Keep copies of the bill of sale (FLHSMV recommends having it notarized), certificate of title or other type of transaction document showing it was sold.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. ❖ Form MV-1 must be completed and a check or money order payable to the Commonwealth of. This document serves as proof of ownership and allows the seller to report the sale to the DMV. The form includes the details of the vehicle.