I am aware of the sales and odometer information that the seller provided, above. I certify, to the best of my knowledge, that the above information is correct.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. A Utah bill of sale is a form that records the sale or trade of an item from one person to another. For the seller, a bill of sale provides proof that title to the vehicle has been legally transferred. (iSeeCars) A vehicle bill of sale is an important legal document when a used car's ownership transfers between two people. A bill of sale is a legal document that records the transfer of ownership of an asset to a second party in exchange for money. A bill of sale is a legal document that protects both the buyer and seller in case of any dispute over the transaction. Use Utah bills of sale to document the transfer of ownership of a car, boat, firearm, or other personal property from a seller to a buyer.