The form consists of the significant vehicle, buyer, seller, and sale data, along with affirming signatures from both parties. Learn how to sell a travel trailer in Texas with our comprehensive RV Bill of Sale guide.Get step-by-step instructions, key documents, and FAQs. This transaction is made in the County of. ,. General Bill of Sale A bill of sale that serves to record the sale of any form of personal property. Download: PDF, Word (. The Texas bill of sale form verifies the elemental facts of the sale of personal property in exchange for a predetermined compensatory amount.