Who Can Witness an Advance Directive in Washington? Eligibility Rules Explained

Picking the wrong witness is one of the fastest ways to invalidate an advance directive in Washington. The state has strict rules about who can and cannot witness your healthcare documents — and the disqualifications are different depending on which document you're signing.

Two Documents, Two Sets of Rules

Washington uses two separate advance care documents, each governed by its own statute with its own witness restrictions:

Health Care Directive (living will) — RCW 70.122.030 Durable Power of Attorney for Health Care (DPOA-HC) — RCW 11.125.050

Both require either a notary acknowledgment or two competent adult witnesses. But the list of people who are disqualified from witnessing differs between them.

Health Care Directive Witness Restrictions

Under RCW 70.122.030, a witness to your living will cannot be:

• Related to you by blood, marriage, or state-registered domestic partnership
• Your designated healthcare agent or proxy
• Your attending physician
• An employee of your attending physician
• An employee of the health facility where you're currently a patient
• Anyone who has a claim against any portion of your estate upon your death (heirs, creditors, beneficiaries)

That last restriction is broader than most people realize. If your neighbor is named in your will — even for a small bequest — they're disqualified from witnessing your Health Care Directive.

DPOA-HC Witness Restrictions

Under RCW 11.125.050, a witness to your healthcare power of attorney cannot be:

• Related to you by blood, marriage, or domestic partnership
• Your designated healthcare agent
• A paid home care provider for you
• A care provider at your adult family home or long-term care facility where you reside

Notice what's different: the DPOA-HC rules don't explicitly disqualify heirs or estate beneficiaries the way the living will rules do. But they add disqualifications for paid caregivers that the living will statute doesn't mention.

The Simplest Solution: Use a Notary

For both documents, a notary public acknowledgment eliminates the witness requirement entirely. You sign in front of a notary, they notarize, and you're done. No need to identify two people who satisfy both sets of restrictions.

This is especially useful if you're:

• In a care facility (where most staff are disqualified for one or both documents)
• Signing both documents at the same time (and don't want to track two different witness eligibility checklists)
• Unsure whether your chosen witnesses might be disqualified under either statute

Many banks, UPS stores, and law offices offer notary services. Some will come to a hospital or care facility for a small travel fee.

Safe Witness Choices

If you prefer witnesses over a notary, the safest choices are people who satisfy all the restrictions from both statutes simultaneously:

• Unrelated friends who are not named in your will or trust
• Co-workers (who aren't healthcare workers at your facility)
• Neighbors with no financial connection to you
• Members of your church, club, or community group

Avoid asking family members, caregivers, healthcare staff, or anyone who stands to inherit from you — even if they're only disqualified under one of the two statutes. Using a witness who's valid for one document but not the other creates a messy situation.

What Happens If a Witness Is Disqualified

Washington law doesn't spell out an explicit penalty for using an ineligible witness. But a hospital's legal department can refuse to honor a directive if the witnessing doesn't comply with the statute. And family members who disagree with your documented wishes can challenge the directive's validity in court, citing the witness defect.

The result: your directive may be set aside at the exact moment it needs to be followed — during a medical crisis when you can't speak for yourself.

Witnessing for Someone in a Care Facility

This is where the rules create the most friction. If your parent or relative is in a nursing home or adult family home:

• Most facility staff are disqualified from witnessing the DPOA-HC (they're care providers at the facility)
• Most facility staff are also disqualified from witnessing the Health Care Directive (they're employees of the health facility)
• Family members visiting to help with signing are disqualified by the blood/marriage restriction

You'll typically need to bring in two outside friends, a mobile notary, or use a combination of one outside witness and a notary.

Washington's advance directive kit includes a witness eligibility checklist that walks through both sets of restrictions for both documents, so you can verify your witnesses are valid before signing day.

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