Wash. Rev. Code § 11.125.110
(2) A principal may designate one or more successor agents to act if an agent resigns, dies, becomes incapacitated, is not qualified to serve, or declines to serve. A principal may grant authority to designate one or more successor agents to an agent or other person designated by name, office, or function. Unless the power of attorney otherwise provides, a successor agent:
[ 2016 c 209 s 111.]