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By: Scott Grossman on February 5th, 2025

Decision-Making Capacity & Other Legal Capacities: California Probate Code Section 810-813

Decision-Making Capacity & Other Legal Capacities: Understanding California Probate Code Sections 810-813 and Their Role in Trust Litigation

Losing a loved one is never easy, and the process of navigating their estate can be overwhelming. The death of a family member, while profoundly emotional, also brings with it a bunch of complex legal obligations and decisions. If you’re now facing the complex world of trust litigation, understanding the nuances of legal capacity—specifically under California Probate Code Sections 810-813— regarding the decision-making capacity & other legal capacities to provide the clarity you need to move forward.

The legalities involved in distributing a loved one’s estate oftentimes raise questions. Was the deceased competent when they created or modified their trust? Did they fully understand the implications of their decisions? How is capacity determined in the event of a dispute?

At The Grossman Law Firm, we understand that the intricacies of trust litigation can be overwhelming, especially when emotions are running high. For over 20 years, we’ve been serving the families of Southern California, guiding them through these challenging circumstances. This article will break down the key aspects of California’s Probate Code Sections 810-813. These sections address decision-making capacity and explain how they are applied in the trust litigation process.

What is Legal Capacity? A Crucial Foundation for Trust and Probate Litigation

Before delving into the specifics of California Probate Code Sections 810-813, it’s essential to understand what “legal capacity” means in the context of probate and trust litigation.

In legal terms, capacity is the mental ability to make informed, rational decisions. It is the foundational principle upon which many legal determinations are made, particularly in executing wills, trusts, and other estate planning documents. In the context of trust litigation, one of the key questions is whether the deceased had the legal capacity to make decisions about their estate when they created or modified their trust.

It’s easy to assume that a person must be “mentally ill” or suffering from a debilitating condition to lack capacity. But in reality, capacity is decision-specific. A person may be perfectly able to handle their day-to-day activities but lack the mental clarity to understand complex financial transactions or make significant decisions about their estate.

California Probate Code Section 810: General Definition of Capacity

Section 810 of the California Probate Code provides a broad definition of capacity. According to this section, capacity is the ability to understand and appreciate the nature and consequences of one’s decisions.

However, capacity is not a one-size-fits-all concept. Section 810 acknowledges that a person’s capacity may vary depending on the situation. For example, someone may be able to make decisions about their healthcare and personal care. However, they may struggle with decisions involving financial matters or legal documents. This variance in decision-making capacity is critical when assessing whether a person can execute or modify a will or trust.

Importantly, Section 810 also emphasizes that a person is presumed to have the capacity to make decisions unless there is clear evidence to the contrary. This presumption forms the basis of trust litigation. Unless a party challenging the validity of a trust can prove that the deceased lacked capacity when the trust was created, the trust is presumed valid.

California Probate Code Section 811: The Test for Capacity to Make Decisions

When trust litigation challenges arise, one of the first issues to be addressed is whether the deceased had the mental capacity to make decisions regarding their estate. Section 811 of the California Probate Code provides a specific test for determining a person’s decision-making capacity.

For a person to have the capacity to make decisions, they must:

  1. Understand the nature of the decision they are making.
  2. Understand the potential consequences of that decision.
  3. Be able to communicate their decision effectively.

This test is applied on a case-by-case basis. For example, when creating a trust, the person must understand the nature of the assets they are transferring. This includes the beneficiaries they designate and the long-term consequences of their choices. Suppose someone cannot comprehend these factors when creating or amending a trust. In that case, their capacity to make those decisions may be questioned.

However, Section 811 also acknowledges that the absence of perfect memory or mental acuity does not necessarily negate capacity. A person may have a cognitive impairment, but as long as they understand their decisions’ fundamental nature and consequences, they may still be considered capable of making valid decisions.

California Probate Code Section 812: Incapacity of an Individual

Not every case of diminished capacity is straightforward. Section 812 of the California Probate Code delves into the factors that can lead to a determination of incapacity. Mental illness, cognitive disorders (such as dementia or Alzheimer’s disease), substance abuse, and even extreme emotional distress can all play a role in determining an individual’s capacity to make decisions.

In these cases, the court may appoint medical experts to evaluate whether the individual had the cognitive ability to make decisions when they executed the trust. Sometimes, an individual may have had the capacity to make decisions at one point. However, may have lost that ability later due to advancing health conditions.

One common issue in trust litigation is whether a loved one is subject to undue influence. Undue influence can sometimes result from a person’s incapacity. However, it’s also a critical element that courts examine in cases involving contested wills or trusts. Section 812 notes that an individual under duress or undue influence may have been incapable of making informed, independent decisions, thereby impacting the validity of their trust or will.

If you would like more resources on undue influence, take a look at our article “Understanding Undue Influence” for a more in-depth analysis of the framework of undue influence.

California Probate Code Section 813: Capacity in Specific Legal Contexts

Section 813 of the California Probate Code explores how capacity determination applies in specific legal contexts, including creating wills and trusts. This section is critical regarding trust litigation because it clarifies how capacity affects trust creation, modification, and revocation.

For example, suppose a person lacks the legal capacity to understand the consequences of their actions when they execute a trust. In that case, the trust may be deemed invalid. Similarly, suppose a person does not fully comprehend the assets involved or the impact of their decisions. Their capacity to execute a valid trust may be questioned in that case.

Section 813 also deals with the procedures for contesting the validity of a trust based on the person’s lack of capacity. Suppose you believe a loved one lacked capacity when creating or modifying their trust. In that case, gathering supporting evidence, including medical records and expert testimony, is essential to challenge the trust’s validity in court.

Practical Considerations in Trust and Probate Litigation

Trust litigation often arises after the death of a loved one. However, it can sometimes occur while the person is still alive, especially if questions about their decision-making capacity come into play. It is a challenging and emotionally charged process, as it involves both legal and family dynamics. In such cases, the person’s mental health, physical well-being, and history of decision-making all come under scrutiny.

For families unsure whether their loved one can create or modify a trust, consulting with a legal professional experienced in trust litigation is critical. At The Grossman Law Firm, we specialize in guiding families through these difficult moments. We provide comprehensive legal advice and representation. This ensures that your loved one’s wishes are respected or that any improper actions or decisions are rectified.

What to Do If You Suspect a Lack of Capacity

If you suspect your loved one could not create or amend their trust, the first step is to consult a qualified trust litigation attorney. Your attorney will help you understand your rights and guide you through the legal processes of challenging the trust.

In many cases, your lawyer will recommend that you gather evidence to support your claim, which may include:

  • Medical records or expert testimony showing a diagnosis of a cognitive impairment.
  • Statements or documentation from family members or close friends regarding the individual’s mental state.
  • Witnesses who can speak to the individual’s decision-making process at the time of trust creation.

Moving Forward with Confidence

The death of a loved one is a profoundly emotional experience. And the prospect of trust litigation only adds to that burden. However, understanding the legal processes can provide peace of mind and clarity during a difficult time.

At The Grossman Law Firm, we are committed to guiding you through the complexities of trust litigation, ensuring that your loved one’s wishes are honored and that justice is served. With over 20 years of experience serving Southern California families, we understand the sensitivity of these issues and work tirelessly to protect your interests.

To ensure they follow their fiduciary duties, check out our complete Overview of California Trust Litigation on our website. If you have more questions about your rights as a Beneficiary and what you should know moving forward. 

Our law firm specializes in trust and probate law and is here to help you navigate these complex issues. Contact us today for a consultation. Let us assist you in ensuring your rights are upheld, and your trust is managed prudently. Please call us at (888) 443-6590 or fill out our Get Help Now form below.