MV-912: Vehicle Bill of Sale (PDF). English. Use this form to show proof of a vehicle ownership transfer through a private sale. Download.A New York Trailer Bill of Sale helps streamline the registration process and proves the transfer of ownership if a dispute arises. A New York motor vehicle bill of sale provides proof that a motor vehicle has been legally sold and acquired in the State of New York. Get a bill of sale in New York to be used for any vehicle, horse or general bill of sale record. Forms. Find out more on a New York bill of sale and how to fill it out. Use a free template or try out our step-by-step creator for customized options. The Trailer is to be sold free and clear of any liens, encumbrances, or mortgages.