020) since January 1, 1995. By law, most sellers of real property must provide a completed Seller Disclosure Statement (aka Form 17) to any buyer.To be used in transfers of improved residential real property, including residential dwellings up to four units, new construction,. Nearly all real estate sales in Washington State require a seller disclosure statement, also known as Form 17, to be given to the buyer. These forms are not a substitute for legal advice and if you have difficulty filling out these forms, then you may wish to consult with an attorney. These forms are not a substitute for legal advice and if you have difficulty filling out these forms, then you may wish to consult with an attorney. The most up-to-date versions of forms are linked on this page. The primary source documents on this page highlight pivotal moments in the course of American history or government. Complete this form and file it with Form ST-8 to compute taxable sales sourced to Virginia localities. Be sure to complete all columns.