Create a Maryland bill of sale form (auto, boat, firearm, trailer, motorcycle, etc.) with stepbystep instructions. Create a Maryland vehicle bill of sale with this free template from Legal Templates, available in PDF and Microsoft Word format.A motor vehicle bill of sale is between a buyer and a seller of a car, truck, or motorcycle. It is signed as the last step in the sales process. A bill of sale is a legal document that outlines the purchase of property between a buyer and seller. It commonly includes both parties' information. The MVA provides a Bill of Sale form. Below, we've outlined the five steps and forms required for how to sell a car in the state of Maryland so you can sell your car quickly for the most cash. How To Fill Out the Vehicle Bill of Sale Maryland Online. Filling out the Maryland vehicle bill of sale pdf form online is a simple process.