Wash. Rev. Code § 84.36.031
(2) Property remains eligible for the exemption under RCW 84.36.030, if:
(b) The property is owned by an entity formed exclusively for the purpose of leasing the property to an organization that will use the property for the exempt purpose provided in RCW 84.36.030, if:
[ 2012 c 76 s 1; 2006 c 305 s 2; 1969 c 137 s 2.]