This guide will break down the ins and outs of asset purchase agreements for multiple owners, making this complex legal topic more digestible and actionable. Asset purchase agreements can be a useful way to create a new business while leaving unwanted resources and potential issues with the seller.A security purchase agreement refers to an agreement under which one buys or sells a security, i.e. Asset Purchase Agreements (APAs) are essential documents for asset sales, but they're far more complex than a simple transaction. Buying or selling company assets? Use this Asset Purchase Agreement to finalize the terms of the transaction.