Wash. Rev. Code § 85.05.150
Any person or corporation claiming to be entitled to any money ordered paid by the court, as provided in this act, may apply to the court therefor, and upon furnishing evidence satisfactory to the court that he or she is entitled to the same, the court shall make an order directing the payment to such claimant of the portion of such money as he or she or it may be found entitled to; but if, upon application, the court or judge thereof shall decide that the title to the land, real estate, or premises specified in the application of such claimant is in such condition as to require that an action be commenced to determine the title of claimants thereto, it shall refuse such order until such action is commenced and the conflicting claims to such land, real estate, or premises be determined according to law.
RCW 85.05.150