Learn how to wholesale real estate in Washington using this stepbystep guide. Check our list of organizations with current contract usage agreements.If your organization isn't listed, proceed to step 2. Learn how to wholesale real estate in Washington: 1. Edit, sign, and share wholesale purchase agreement contract pdf online. No need to install software, just go to DocHub, and sign up instantly and for free. We have talked with Chicago Title's senior escrow professional, and they told us it is not possible to structure a contract using. Every business that sells at wholesale must obtain a valid reseller permit or other documentation for each customer that buys without paying retail sales tax. A business contract is a legally binding agreement between two or more persons or entities. Contracts can be complex.