Deliver to the buyer a completed seller disclosure statement in the following format and that contains, at a minimum, the following information. State law in Washington (2021 Revised Code of Washington § 64.06.Almost all real estate sales in Washington State require a seller disclosure statement to be given to the buyer. Yes, it is possible to sell a property to your tenant using a contract for deed in Washington State. You must fill out a Seller Disclosure Statement (also known as Form 17). You must tell the buyer any problems with the property that you know about. When selling a house in WA, you must: 1. Price your home competitively 2. All you need to do to sell your land in Washington is to fill out our "Sell My Land" form. Doing this will allow us to start our inspections of your property.