Wash. Rev. Code § 79.15.130
When valuable materials are sold separately from the land and the purchase price is paid in full, the department shall prepare a bill of sale. The bill of sale shall:
[ 2003 c 334 s 362; 2001 c 250 s 9; 1927 c 255 s 58; RRS s 7797-58. Formerly RCW 79.01.232, 79.12.420.]
Intent—2003 c 334: See note following RCW 79.02.010.