Asset purchase agreements can be a useful way to create a new business while leaving unwanted resources and potential issues with the seller. Find top rated Arizona asset purchase agreement lawyers.Post your legal needs and get proposals from vetted lawyers in AZ for your APA. Establish terms for sale and purchase of an asset. Asset Purchase Agreements (APAs) are essential documents for asset sales, but they're far more complex than a simple transaction. Drafting Asset Purchase Agreements: Standard (and Not-So-Standard) Clauses. This document is an agreement for the sale and purchase of a business and assets as a going concern. An Arizona business purchase agreement is a legally binding document that outlines the terms of buying or selling a business. Asset purchases occur between a seller and buyer of a company's assets, including facilities, vehicles, equipment, stock, and inventory.