An asset purchase agreement (or APA) is a binding document between a buyer and seller for the purchase and sale of a company's assets. Secure your San Antonio small business's transactions today!Our asset purchase agreements from Dan Burke are created to account for all of your assets. An Asset Purchase Agreement is a legally binding contract between a buyer and a seller that details the terms and conditions of the sale of a business's assets. Buying or selling company assets? Use this Asset Purchase Agreement to finalize the terms of the transaction. An APA, or Asset Purchase Agreement, is a contract in which a buyer and seller agree to the transfer of ownership for an asset at an agreed price. An asset purchase agreement is a written legal instrument that formalizes the purchase of a business or significant business asset. Are you planning to purchase a business? Learn more about the process as well as your rights and responsibilities as a buyer.