Hey Buddy Buck here! 020) since January 1, 1995.The Form 17 permits a seller to mark answers to the form questions as "Yes", "No", "I don't know", and "NA." It establishes the terms and conditions under which a particular buyer offers to purchase a particular seller's property. Withing five days of accepting the buyer's offer, the seller must provide the buyer with a Seller's Disclosure Statement, also called "Form 17". By law, most sellers of real property must provide a completed Seller Disclosure Statement (aka Form 17) to any buyer. Washington County, State of Utah. Seller agrees to sell to Buyer and Buyer agrees to purchase from Seller the following described real estate in __________________ County, State of Washington. Gov website belongs to an official government organization in the United States. Get any WA state license at resident rates (Fishing license, hunting license, etc.). 2.