Whether you are a business buyer or seller, contact San Diego Corporate Law for a consultation to discuss your business sale options. A Purchase and Sale Agreement for a Business sets out the final transaction between a buyer and a seller of a business.It is generally fairly detailed. Our Boyd Law San Diego business purchase and sale lawyers have many years of combined successful experience practicing law in California. Seller desires to sell and Buyer desires to purchase certain assets of Seller used in the Business in accordance with the terms and conditions contained herein. Find top rated asset purchase agreement lawyers for San Diego, CA to hire. Post your legal needs and get proposals from CA APA lawyers. Buying or selling company assets? Use this Asset Purchase Agreement to finalize the terms of the transaction. An Asset Purchase Agreement (APA) is a legally binding contract that outlines the terms and conditions of a business sale or acquisition.