Hey Buddy Buck here! A real estate contract washington is, at its core, a legally binding agreement made between two or more parties in a Washington real estate deal.Edit, sign, and share form 17 seller disclosure statement pdf online. No need to install software, just go to DocHub, and sign up instantly and for free. 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". I am An Heir, Does A Personal Representative Need To Submit A Seller Disclosure Form 17 On The Sale Of Real Property? I am An Heir, Does A Personal Representative Need To Submit A Seller Disclosure Form 17 On The Sale Of Real Property? Please note it could take several days for the new forms to populate. Edit, sign, and share Seller Disclosure Statement-Improved Property (Rev. Learn more about the NWMLS Form 17 (or Seller Disclosure Statement).