Hey Buddy Buck here! By law, most sellers of real property must provide a completed Seller Disclosure Statement (aka Form 17) to any buyer.Almost every home seller in WA must complete a Seller Disclosure Statement, aka the Form 17. Learn more, and get a copy you can use for free! Nearly all real estate sales in Washington State require a seller disclosure statement, also known as Form 17, to be given to the buyer. To be used in transfers of improved residential real property, including residential dwellings up to four units, new construction,. The current form is 6 pages long and includes most of the typical property issues requiring disclosure with a catchall question for anything left out. This booklet explains many of these laws you need to know and provides resources where you can find more information about landlord and tenant issues. Best Bahamas cruise deals. 10 cruises found - Prices are per traveler, available within last 24 hours and valid for US and Canadian residents only.