Signing Requirements
The principal is required to sign in the presence of two witnesses or a notary public. The agent has the option to complete the Agent Certification which requires signing in the presence of a notary public (RCW 11.125.050, RCW 11.125.430).
Definition of “Durable”
“Durable,” with respect to a power of attorney, means not terminated by the principal’s incapacity (WA Rev Code § 11.125.020(2)).
Definition of “Power of Attorney”
“Power of attorney” means a writing that uses the term “power of attorney” and grants authority to an agent to act in the place of the principal (WA Rev Code § 11.125.020(7)).
Statutory Form
There is no statutory durable power of attorney document in Washington, but language concerning durable powers can be found here: RCW 11.125.020.