A model real estate purchase contract is a practical resource for the legal purchase of real estate. You may also be familiar with the sales contract in the form of a residential real estate contract or a real estate sales contract. Another title of this important legal document is the agreement to purchase real estate. Where reference is made to the contract for the purpose of purchasing a business, the legal form is an asset purchase contract or a model commercial purchase agreement. A contract for the purchase of residential real estate is a binding contract between the seller and the buyer for the transfer of ownership of real estate. The agreement sets out the terms, such as the sale price and all contingencies that lead up to the closing date. It is recommended that the seller require the buyer to make a serious deposit of money between 1% and 3% of the sale price, which is not refundable when the buyer terminates the contract.