This is a loan the seller makes to the buyer to facilitate the sale. If a commercial loan is used, appropriate modifications are required.Use this free customizable owner financing contract template to confirm financing between the owner selling a home and a buyer purchasing it. An asset purchase agreement is a legal document used when buying or selling a small business. Read on to understand the basics. The buyer will want to see copies of all leases, contracts, and loan agreements in addition to copious financial records and statements.