Wash. Rev. Code § 64.34.202
Upon the filing of a written request with the county office in which the declaration is to be recorded, using such form of written request as may be required by the county office and paying such fee as the county office may establish not in excess of fifty dollars, a person may reserve the exclusive right to use a particular name for a condominium to be created in that county. The name being reserved shall not be identical to any other condominium or subdivision plat located in that county, and such name reservation shall automatically lapse unless within three hundred sixty-five days from the date on which the name reservation is filed the person reserving that name either records a declaration using the reserved name or files a new name reservation request.
RCW 64.34.202