Ariz. Rev. Stat. § 36-3221 – Health care power of attorney; scope; requirements; limitations; fiduciaries

A. A person who is an adult may designate another adult individual or other adult individuals to make health care decisions on that person's behalf or to provide funeral and disposition arrangements in the event of the person's death by executing a written health care power of attorney that meets all of the following requirements:
1. 1. Contains language that clearly indicates that the person intends to create a health care power of attorney.
2. 2. Except as provided under subsection B of this section, is dated and signed or marked by the person who is the subject of the health care power of attorney.
3. 3. Is notarized or is witnessed in writing by at least one adult who affirms that the notary or witness was present when the person dated and signed or marked the health care power of attorney, except as provided under subsection B, and that the person appeared to be of sound mind and free from duress at the time of execution of the health care power of attorney.
B. If a person is physically unable to sign or mark a health care power of attorney, the notary or each witness shall verify on the document that the person directly indicated to the notary or witness that the power of attorney expressed the person's wishes and that the person intended to adopt the power of attorney at that time.
C. A notary or witness shall not be any of the following:
1. 1. A person designated to make medical decisions on the principal's behalf.
2. 2. A person directly involved with the provision of health care to the principal at the time the health care power of attorney is executed.
D. If a health care power of attorney is witnessed by only one person, that person may not be related to the principal by blood, marriage or adoption and may not be entitled to any part of the principal's estate by will or by operation of law at the time that the power of attorney is executed.
E. A person whose license as a fiduciary has been suspended or revoked pursuant to section 14-5651 may not serve as an agent under a power of attorney in any capacity unless the person is related to the principal by blood, adoption or marriage. This prohibition does not apply if the person's license has been reinstated and is in good standing.