A sales contract is a legal document between two parties, the seller who wishes to sell a personal property and the buyer who wishes to buy that property. The agreement outlines the terms of the sale and ensures that both parties keep their promises regarding the sale. If you wish to sell or buy a business, please use our sales contract. If you are selling or buying personal real estate, you should consider documenting your transaction in a personal real estate purchase agreement. A written contract allows both parties to carefully review and describe the details of the sale and confirms each party`s understanding of how the transaction will take place. A sales contract is signed before the exchange of goods or money. .