What are the three tests for mental capacity to make a will?

The person must be able to understand (1) the nature and extent of their property, (2) the natural objects of their bounty, meaning their family and natural heirs, and (3) the nature and effect of making the will. Arizona applies the same standard to trusts that serve as will substitutes.

What is the difference between testamentary capacity and mental capacity?

Testamentary capacity is the specific, relatively low standard for making a will. “Mental capacity” is the general term; the level required differs by act, and the capacity needed to sign a contract, deed, or power of attorney is higher than testamentary capacity.

Who determines mental capacity for a power of attorney?

At signing, the notary, witnesses, and drafting attorney form a practical judgment, often with a physician’s input. If the document is later challenged, the Superior Court decides, based on medical records, testimony from those present, and the person’s conduct around the time of signing.

How is mental capacity determined after someone has died?

Through evidence of the person’s condition at the time of signing: medical and pharmacy records, the drafting attorney’s file and testimony, the witnesses, the person’s own writings and conduct, and sometimes a retrospective opinion from a physician or neuropsychologist.

Does a dementia or Alzheimer’s diagnosis mean a person cannot make a will?

No. Capacity is assessed at the moment of signing. A person with a diagnosis who understands their property, their family, and the effect of the document during a lucid period can have testamentary capacity.

Can a will or trust be challenged for lack of capacity after the person dies?

Yes. An interested person can contest the document in the probate court or in a trust proceeding. The contestant bears the burden of proving lack of capacity at the time of signing (A.R.S. § 14-2712).

Types of Mental Capacity in Arizona Legal Decisions

Part of our Arizona Probate and Estate Litigation practice.

Arizona applies a different capacity standard to each kind of legal act. To make a will or trust, a person needs testamentary capacity: the ability to understand the nature and extent of their property, who their natural heirs are, and what the document does. To sign a contract or a deed, the standard is higher: the ability to understand the nature and effect of the transaction. A power of attorney generally requires contractual capacity at signing. Capacity is judged at the moment the document is signed, a diagnosis such as dementia does not by itself mean a person lacks capacity, and after death capacity is proved through medical records, the drafting attorney, witnesses, and the circumstances of the signing.

Introduction

In Arizona, understanding mental capacity is crucial when engaging in any significant legal decisions, including contracts, powers of attorney, marriage, probate, estates, wills, and trusts. Mental capacity refers to the ability to comprehend the nature and consequences of one’s decisions. The legal standard varies depending on the legal action being undertaken. This guide aims to elucidate the different levels of mental capacity required for various legal transactions, helping Arizona residents navigate these complex situations with better awareness and informed consent.

The following are different types of mental capacity required for legal decisions:

Capacity to Execute a Will or Trust – “Testamentary Capacity”

This is a very often misunderstood subject. Executing a will or trust in Arizona requires testamentary capacity. In Arizona, testamentary capacity has three elements: the ability to understand (1) the extent of their assets, (2) the natural beneficiaries of their estate, and (3) the implications of their decisions on the distribution of their property upon death. For example, consider an elderly Arizona resident who wishes to leave a substantial part of their estate to a non-family member, but has dementia or Alzheimer’s disease. Even if they are confused or have some memory problems, so long as they have the ability to understand the nature and extent of their property, family and the effect of the will, they will be found to have sufficient capacity to execute a will or trust that serves as a will substitute.

Watch this video short to learn more about testamentary capacity!

Capacity to Sign a Contract

The capacity to enter into contracts, such as purchasing real estate or other property, requires a practical understanding of the contract terms and their consequences. In Arizona, this includes the ability to recognize potential financial liabilities and the benefits derived from the agreement. For instance, an individual must have the ability to understand the obligations and protections offered when entering into a lease agreement for a property. Otherwise competent individuals are bound by contracts they sign even if they do not read them. So, capacity is not determined by whether the individual actually understood the contract, unless other circumstances (such as fraud) make that issue relevant.

Capacity to Execute Power of Attorney

Granting power of attorney necessitates that the principal, the one granting the authority, at the time of executing the power of attorney, was able to reasonably comprehend the nature and effect of granting the power of attorney. A power of attorney executed by someone who lacks this capacity is considered invalid. The nature and complexity of the delegated act are factors that may affect whether the power of attorney is valid in Arizona. For instance, a straightforward sale of personal property requires less competency than giving someone authority to conduct a complex business transaction involving your entire estate. Another example, an Arizona resident might appoint an agent, also called attorney-in-fact, to manage their financial affairs if they anticipate declining health. This decision demands a clear understanding that the agent can make significant decisions about property and investments, as outlined in the power of attorney document, a critical element in Arizona estate planning.

There are many nuances involved in powers of attorney, especially if there are disputes over their validity or whether the agent exceeded their authority. Learn more in our in-depth article about Arizona Powers of Attorney.

Capacity to Marry

In terms of personal relationships, the capacity to marry involves understanding the legal and personal implications of forming a matrimonial bond, similar to any other contract. This is typically a lower threshold compared to financial transactions but still requires one to understand the rights and responsibilities that marriage entails. A couple in Arizona deciding to marry must grasp the legal implications, such as property rights and spousal support obligations, under Arizona family law.

Frequently Asked Questions About Mental Capacity in Arizona

What are the three tests for mental capacity to make a will?: The person must be able to understand (1) the nature and extent of their property, (2) the natural objects of their bounty, meaning their family and natural heirs, and (3) the nature and effect of making the will. Arizona applies the same standard to trusts that serve as will substitutes.
What is the difference between testamentary capacity and mental capacity?: Testamentary capacity is the specific, relatively low standard for making a will. “Mental capacity” is the general term; the level required differs by act, and the capacity needed to sign a contract, deed, or power of attorney is higher than testamentary capacity.
Who determines mental capacity for a power of attorney?: At signing, the notary, witnesses, and drafting attorney form a practical judgment, often with a physician’s input. If the document is later challenged, the Superior Court decides, based on medical records, testimony from those present, and the person’s conduct around the time of signing.
How is mental capacity determined after someone has died?: Through evidence of the person’s condition at the time of signing: medical and pharmacy records, the drafting attorney’s file and testimony, the witnesses, the person’s own writings and conduct, and sometimes a retrospective opinion from a physician or neuropsychologist.
Does a dementia or Alzheimer’s diagnosis mean a person cannot make a will?: No. Capacity is assessed at the moment of signing. A person with a diagnosis who understands their property, their family, and the effect of the document during a lucid period can have testamentary capacity.
Can a will or trust be challenged for lack of capacity after the person dies?: Yes. An interested person can contest the document in the probate court or in a trust proceeding. The contestant bears the burden of proving lack of capacity at the time of signing (A.R.S. § 14-2712).

Conclusion

Brain diagram Mental capacity varies significantly across different legal domains, particularly in areas concerning Arizona contracts, powers of attorney, marriage, probate, estate planning, wills, and trusts. Understanding these variations is crucial for ensuring that all legal actions are taken with full awareness and proper consent. Where applicable, Arizona residents facing complex legal decisions should consult with a qualified Arizona probate and estate attorney to navigate these issues effectively.

If you have any questions about the validity of a will, trust, deed or other document in Arizona, we encourage you to contact our experienced Arizona probate and estate attorneys at Berk Law Group.

By Kent Berk and the Berk Law Group team. Arizona probate & trust litigation attorneys since 1996.

Kent and the firm have litigated numerous will contests in Arizona, on grounds ranging from undue influence and lack of capacity to improper execution.

Understanding Different Types of Mental Capacity in Legal Decisions: A Guide for Arizona Residents