Recreational Vehicle. Division of Law Enforcement. RECREATIONAL.Date. Signature of Seller. 1. Fill in the seller's and buyer's full names and contact information. A Massachusetts bill of sale form is a legal document used to record the sale of personal items in the state of Massachusetts. Both parties must sign the form after entering the date of the sale, the sale price, their contact information, and a description of the car. Our fully customizable template ensures a seamless and legally compliant transaction, giving you peace of mind and saving you valuable time in the process. These forms are often required to prove ownership, particularly motor vehicle bills of sale when registering the car with the state DMV. I state that the odometer now reads. The Massachusetts bill of sale form abridges the details of an exchange of property for compensation to a concise written format.