Wash. Rev. Code § 61.24.143
If the trustee elects to foreclose the interest of any occupant of tenant-occupied property, upon posting a notice of trustee's sale under RCW 61.24.040, the trustee or its authorized agent shall post in the manner required under RCW 61.24.040(1)(e) and shall mail at the same time in an envelope addressed to the "Resident of property subject to foreclosure sale" the following notice:
"The foreclosure process has begun on this property, which may affect your right to continue to live in this property. Ninety days or more after the date of this notice, this property may be sold at foreclosure. If you are renting this property, the new property owner may either give you a new rental agreement or provide you with a sixty-day notice to vacate the property. You may wish to contact a lawyer or your local legal aid or housing counseling agency to discuss any rights that you may have."
RCW 61.24.143
Application of section- 2009 c 292 s s 3 and 4: "RCW 61.24.143 and 61.24.146 apply only to the foreclosure of tenant-occupied property." [2009 c 292 s 5.]