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. Contact Davis Business Law for a lawyer to buy or sell your business in Dallas, TX. From mergers to asset purchases, we've got you covered.ASSET PURCHASE AGREEMENT from DGSE COMPANIES INC filed with the Securities and Exchange Commission. 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. The opening paragraph of an asset purchase agreement includes the buyer and seller's name and address as well as the date of signing. The documents you need to buy or sell a business depend on the structure (discussed here) and complexity of the deal as well as its specific terms.