Mobile Home, Off-Highway Vehicle or Vessel. • Be sure to fill out a "Notice of Sale" form at the county tax collector's office within 30 days of the sale.The form also documents the sale and is the legal receipt. 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. To register a vehicle that was previously titled out-of-state, complete and sign Form 82040 MV: Application for Certificate of Motor Vehicle Title. A bill of sale is a document that transfers ownership of goods from one person to another.