Wash. Rev. Code § 58.19.180
It shall be unlawful for the developer to make a sale of lots or parcels within a development which is subject to a blanket encumbrance which does not contain, within its terms or by supplementary agreement, a provision which shall unconditionally provide that the purchaser of a lot or parcel encumbered thereby can obtain the legal title, or other interest contracted for, free and clear of the lien of such blanket encumbrance upon compliance with the terms and conditions of the purchase agreement, unless the developer shall elect and comply with one of the following alternative conditions:
(1) The developer shall deposit earnest moneys and all subsequent payments on the obligation in a neutral escrow depository, or real estate trust account regulated under *RCW 18.85.310, until such time as all payments on the obligation have been made and clear title is delivered, or any of the following occurs:
[ 1992 c 191 s 7; 1973 1st ex.s. c 12 s 18.]
*Reviser's note: RCW 18.85.310 was recodified as RCW 18.85.285 pursuant to 2008 c 23 s 49, effective July 1, 2010.