I plan on two witnesses. Do I need a notary also?
Family Law Attorney
RCW 11.12.020 (Requisites of wills – Foreign wills) provides that: "(1) Every will shall be in writing signed by the testator or by some other person under the testator's direction in the testator's presence, and shall be attested by two or more competent witnesses, by subscribing their names to the will, or by signing an affidavit that complies with RCW 11.20.020(2), while in the presence of the testator and at the testator's direction or request..."
The statutes are at http://apps.leg.wa.gov/RCW/default.aspx?cite=11.12 .
A notary public is not statutory required for a will to be valid in WA.
However, having a notary to certify the signatures of the witnesses in the self-proving affidavit may be useful, especially if the witnesses cannot later be found.