Search the library of FAQ for all Buy with Prime articles. In this article Account linking FAQ Get answers to common questions about account linking.Buy with Prime lets you display the Prime logo and delivery promise on your own website. Buy with Prime can take the headache out of fulfillment. An asset purchase agreement (APA) is a legally binding agreement used when a company wishes to buy or sell specific assets of another business. When buying or selling an RIA practice, one of the most important documents you'll encounter is the Asset Purchase Agreement (APA).