A massachusetts motor vehicle bill of sale form serves as a legal document that records the sale or transfer of a vehicle from one party to another within the state of massachusetts. Provides massachusetts bill of sale forms for all your bill of sale needs, including bill of sale forms for the sale of an auto, boat, motocycle, horse or other from of personal property. This form outlines vital information including the purchase price, vehicle details, and the buyer's and seller's signatures, ensuring that the transaction is. Notarized car bill of sale: A bill of sale also verifies the sale and key vehicle data.