Comprehensive guide on How to sell your business in Washington State. Successfully sell your company in the Pacific Northwest.When buying the assets of a business, some are subject to sales or use tax, while others are not. Items subject to retail sales tax. PROPERTY: The Property is legally described on Exhibit A. Address: City of. ,. Business assets are not considered legally transferred without a properly executed Business Purchase Agreement between the seller and purchaser. This document allows for the purchase of assets or stock of a corporation. The effective date ("Effective Date") of this Agreement means the date of complete and mutual execution hereof. 1.