A Massachusetts healthcare proxy form is a document that lets you select someone to make medical decisions on your behalf if you lose your decision-making ability. The person you choose (called your agent) is legally required to carry out your wishes for medical treatment and act in your best interest.
Signing Requirements: Two (2) Witnesses (Ch.201D §2).
Revocation: Unless a court order determines you can no longer make decisions for yourself, you can revoke anytime. If your spouse is your agent, getting a divorce or legally separating from your spouse automatically revokes the document (Ch.201D §7).