Washington Revised Code Title 64. Real Property and Conveyances § 64.90.275. Sales purposes

(1) A declarant may maintain sales offices, management offices, and models in units or on common elements in the common interest community only if the declaration so provides. In a cooperative or condominium, any sales office, management office, or model not designated a unit by the declaration is a common element.

(2) When a declarant no longer owns a unit or has the right to create a unit in the common interest community, the declarant ceases to have any rights under this section unless the unit is removed promptly from the common interest community in accordance with a right to remove reserved in the declaration.

(3) Subject to any limitations in the declaration, a declarant may maintain signs in or on units owned by the declarant or the common elements advertising the common interest community.

(4) This section is subject to the provisions of other state law and local ordinances.