Motor Vehicle, Mobile Home, Off- Highway or Vessel Description. Year. Need to write a bill of sale?Click here to follow a step-by-step guide and learn the 15 key elements that must be included in 2023. A Bill of Sale is a document that moves ownership of some item from one person to another. A bill of sale will detail a transfer of property or sale of items between a seller and buyer. This type of document serves as legal evidence. Avoid white-out, scribbles, and strike-throughs.