RCW 59.18.260

(2) No deposit may be collected by a landlord unless the rental agreement is in writing and a written checklist or statement is provided by the landlord to the tenant at the commencement of the tenancy specifically describing the condition and cleanliness of or existing damages to the premises, fixtures, equipment, appliances, and furnishings including, but not limited to: (a) Walls, including wall paint and wallpaper; (b) Carpets and other flooring; (c) Furniture; and (d) Appliances.