Understand key disclosure requirements for sellers in Washington state and learn how to comply effectively. By law, most sellers of real property must provide a completed Seller Disclosure Statement (aka Form 17) to any buyer.You can deduct a part of your medical and dental expenses, and amounts you paid for certain taxes, interest, contributions, and other expenses. To be used in transfers of improved residential real property, including residential dwellings up to four units, new construction,. Read this before filling out your forms. • Order forms online through the Department's website or call (804) 367-8031. Here is a list of forms that household employers need to complete. • Schedule H (Form 1040) for figuring your household employment taxes. Statewide Fuel Taxes on Aviation Fuel. To take the children listed in 2 out of Washington state.