Wash. Rev. Code § 19.380.010
Regulation of surrogacy brokers
(1) This section applies to surrogacy brokers arranging or facilitating transactions contemplated by a surrogacy agreement under RCW 26.26A.700 through 26.26A.785 if: (a) A surrogacy broker does business in Washington state; (b) a surrogate who is party to a surrogacy agreement resides in Washington state during the te…