
If you recently lost a loved one, you may be confronting a range of emotions that can cloud your judgment and raise difficult questions. In addition to grief, you may experience confusion or suspicion when you learn the details surrounding the creation or revision of the decedent’s Last Will and Testament. If certain provisions seem inconsistent with long-standing intentions or prior estate plans, you may begin to question whether the document truly reflects the wishes of the Testator. In some cases, those concerns center on the possibility that another individual improperly influenced the Testator during the estate planning process. Because courts do not invalidate a Will lightly, it is crucial to understand both the legal framework and the evidentiary burden involved in challenging a Will based on allegations of “undue influence.” With that in mind, the Long Island attorneys at Eghrari Law Firm explain what you need to know if you are alleging undue influence in a New York Will contest.
Defining Undue Influence in a New York Will Contest
When you initiate a Will contest in New York, you must be prepared to allege legal grounds on which the Will could be invalidated because being unhappy with the terms of the Will cannot serve as a legal justification for invalidating the Will. The Surrogate’s Court requires you to assert recognized legal grounds that justify setting aside the Will. One of those grounds is undue influence, which involves conduct that effectively substitutes another person’s intent for that of the Testator.
Undue influence arises when an individual exerts pressure, manipulation, or deceptive practices that overpower the Testator’s decision-making capacity. The key issue is whether the Testator’s free will was compromised to such an extent that the resulting document reflects the desires of the influencer rather than the authentic wishes of the person creating the Will. This concept does not require overt threats or coercion. Subtle forms of domination, particularly in relationships involving dependency or trust, may be sufficient if they ultimately control the outcome.
In New York, the person challenging the Will bears the responsibility of proving undue influence, a burden that requires more than speculation or suspicion. Courts expect a well-developed factual record demonstrating that improper conduct occurred and that it directly affected the terms of the Will.
Key Elements You Must Establish
To succeed in a Will contest based on undue influence, you must demonstrate several interrelated factors. While no single element is dispositive, the presence of these indicators can collectively support your claim. Courts evaluate the totality of the circumstances, often relying on indirect evidence because direct proof is rarely available. Elements you must prove to succeed on a claim of undue influence include:
- Existence of a Confidential or Fiduciary Relationship: You should show that a relationship of trust existed between the Testator and the alleged influencer. This type of relationship creates an environment in which influence can be more easily exerted. Examples include relationships involving caregivers, financial advisors, attorneys, or close family members who manage personal or financial affairs. When one party relies heavily on another, the risk of manipulation increases.
- Resulting Benefit to the Alleged Influencer: You must show that the individual accused of exerting influence received a significant or unexpected advantage under the terms of the Will. This benefit often appears disproportionate when compared to prior estate plans or long-standing family relationships. For example, if a non-family caregiver receives the bulk of the estate while close relatives are excluded or minimized, the court may scrutinize that outcome more closely.
- Disposition or Motive to Exert Influence: You should establish that the alleged influencer had a reason to manipulate the Testator. Financial gain is the most common motive, though other incentives may exist. Evidence that the individual stood to benefit directly from changes to the Will can support an inference that influence was intentionally applied.
- Opportunity to Exercise Control: You must demonstrate that the alleged influencer had access to the Testator and the ability to affect decisions. This often involves showing that the individual was present during key moments, such as meetings with estate planning professionals, or that the person maintained significant involvement in the Testator’s daily life. Control over transportation, communication, or access to legal counsel may also be relevant.
The Role of Circumstantial Evidence
In most undue influence cases, you will not have direct evidence such as written admissions or recorded statements. As a result, your case will often depend on circumstantial proof. New York courts recognize this reality and permit inferences to be drawn from patterns of behavior and surrounding facts. You may rely on medical records to demonstrate cognitive decline, physical frailty, or increased dependence on others. Testimony from friends, relatives, or professional advisors can provide insight into the Testator’s mental state and relationships. Evidence showing isolation from long-standing beneficiaries or sudden changes in estate planning documents can also be persuasive.
For instance, if the Testator previously maintained a consistent estate plan over many years and then made a drastic revision shortly before death, the court may examine the circumstances closely. If that change coincided with increased involvement by a particular individual, the timing may support your claim. Similarly, if the alleged influencer restricted access to the Testator or discouraged communication with other family members, those actions can suggest an effort to control decision-making.
The legal system is designed to respect testamentary freedom, meaning that individuals have broad authority to distribute their assets as they choose. Because of this principle, you must present clear and convincing evidence that the Testator’s intent was overridden. Mere suspicion, even when coupled with an unequal distribution of assets, will not be sufficient.
Contesting a Self-Proving Will in New York
In New York, many Wills are executed with a self-proving affidavit. This document, signed by the Testator and witnesses before a notary, serves as preliminary evidence that the Will was properly executed in compliance with statutory requirements. A self-proving Will can streamline the probate process by reducing the need for witness testimony regarding execution formalities.
Despite this procedural advantage, a self-proving Will is not immune from challenge. The affidavit addresses execution and capacity, not the absence of undue influence. If you can demonstrate that the Testator was manipulated or controlled during the drafting or signing process, the presence of a self-proving affidavit does not prevent the court from invalidating the Will.
Can We Help You with a New York Will Contest Based on Undue Influence?
For more information, please join us for a FREE estate planning seminar. If you would like assistance pursuing a New York Will contest based on undue influence, contact the Long Island probate attorneys at Eghrari Law Firm by calling us at 631-265-0599 to schedule your appointment.

Planning for Incapacity in New York
See Larger Map
Get Directions