Wash. Rev. Code § 64.60.040
(1) A payee of a private transfer fee obligation imposed before April 13, 2011, shall record, before December 31, 2011, against the real property subject to the private transfer fee obligation, a separate document in the county auditor's office in the county in which the real property is located that includes all of the following requirements:
[ 2011 c 36 s 6.]