The Trailer is to be sold free and clear of any liens, encumbrances, or mortgages. Planning to sell your trailer?Download one of our trailer bill of sale forms and get the job done ✔️ 38 templates available. A New York Trailer Bill of Sale helps streamline the registration process and proves the transfer of ownership if a dispute arises. The seller must complete all applicable information and sign this form. The Bill of Sale or Even-Trade Bill of Sale must be notarized. This form should be completed in ink. Errors or alterations on the title or other documents presented for title transfer may require this form to be notarized.