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 (or APA) is a binding document between a buyer and seller for the purchase and sale of a company's assets. Click on Supplier Portal Registration in the navigation bar and login from there. • Information needed for Registration:. An asset purchase agreement is the legal document that will govern the transfer of ownership of a business's assets from the seller to the buyer. IMPORTANT: This rendition covers property you owned on January 1 of this year. Both the seller and purchaser of a group of assets that makes up a trade or business must use Form 8594 to report such a sale.