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.I'm selling a car in Florida and have a NY buyer. We are struggling to understand the best way to register it so that the buyer can legally drive it back to NY. Get a bill of sale in New York to be used for any vehicle, horse or general bill of sale record. Forms. MV-912: Vehicle Bill of Sale (PDF). English. Use this form to show proof of a vehicle ownership transfer through a private sale. Here, you will find official forms for all major property types and will be able to use our customized templates valid in the State of New York. 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.