Can a Power of Attorney Be Revoked by a Mentally Incompetent Principal?

By Chris Blank

Power of attorney is one of several legal mechanisms designed to protect a person's legal interests. A durable power of attorney allows someone designated by the principal, or the person executing the power of attorney, to act as an agent on the principal's behalf. While power of attorney may be revoked, the law does not allow a mentally incompetent principal to do so.

Power of Attorney Definition

Power of attorney refers to a legal document that allows an agent to conduct transactions on behalf of a principal. General power of attorney allows an agent to conduct transactions in nearly all aspects of a principal's life, including accessing bank accounts, paying bills, initiating and responding to lawsuits and executing the terms of contracts to which the principal is a party. Limited power of attorney refers to latitude granted by the principal to the agent for a specific purpose, for instance, handling the sale of a house. Once that specific transaction is completed, the power of attorney expires.

Mental Competence Defined

Mental competence is defined as the ability to understand the terms of a contract and the capacity to enter into an agreement. Mental competence can be temporarily compromised, for instance, by intoxication. Permanent mental incompetence can result from severe head or brain injury, mental illness, retardation or a degenerative mental condition such as dementia. The law does not allow a principal who is mentally incompetent to designate power of attorney. A mentally incompetent principal is also prohibited from revoking a power of attorney that was properly drawn up. In fact, a durable power of attorney is designed to allow an agent to act in place of a principal who becomes incompetent, either due to illness, injury or some other reason.

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Revoking Power of Attorney

A mentally competent principal does not give up the right to handle her own legal affairs. She may elect to act on her own behalf even with a power of attorney in place. A principal may revoke power of attorney at any time, including durable power of attorney, as long as she remains mentally competent. A principal may also regain the legal right to revoke power of attorney after a period of mental incompetence by demonstrating she has regained the capacity to handle her own legal affairs.

Establishing Mental Incompetency

If the principal chooses, she may designate the conditions under which she may be declared mentally incompetent as one aspect of a durable power of attorney. Even without such a designation, many courts will require a physician to submit a written determination that a principal is mentally incompetent. The physician will probably consider three areas before making a determination: whether a principal understands the terms of the power of attorney in question, whether she understands the seriousness of making such an agreement and whether she can reasonably communicate her wishes.

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Power of Attorney Rules



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Types of Power of Attorney for Elderly Family Members

The health of an aging family member may determine the type of power of attorney she will agree to or is able to sign. A power of attorney is a document whereby someone known as the principal will appoint an agent or attorney-in-fact to act on her behalf. A principal often grants power of attorney to a trusted family member with a keen business sense so that she knows her affairs are being handled according to her wishes.

When Does a Durable Power of Attorney Cease in Arizona?

A durable power of attorney in Arizona is defined as a power of attorney that remains in effect after the person who signed it is unable to make decisions for herself. The person who creates a power of attorney is called the principal. The person named in the power of attorney to act for the principal is the agent or attorney-in-fact. A non-durable power of attorney, or traditional power of attorney, ceases to be in force if the principal becomes incapacitated.

Power of Attorney Rights

The power of attorney doesn't so much grant rights as powers. Under a power of attorney arrangement, one person -- known as the principal -- grants an agent the power to perform legal acts on his behalf. This grant of authority may be broad or narrow, and it may be of temporary or indefinite duration. A power of attorney must be in writing and signed by the principal to be valid.

Power of Attorney

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