If your sibling pressured your parent into disinheriting you, New York law gives you the right to challenge the will for undue influence. As a child of the deceased, you have standing to contest, because you would inherit if the will fails. If the Surrogate's Court finds the will reflects your sibling's coercion rather than your parent's true wishes, it will refuse to admit the will, and the estate passes under an earlier will or New York's intestacy rules.
What Counts As Undue Influence In New York
Not every family lobbying campaign is undue influence. A child is allowed to ask a parent for a bigger share, even persistently. The law draws the line at coercion — pressure that overpowered your parent's free will so that the document expresses the influencer's wishes, not the parent's.
Courts look for three things: motive, opportunity, and the actual exercise of influence. Because no one pressures a parent in front of witnesses, the proof is usually circumstantial. Red flags that carry weight include:
- Your sibling isolated your parent — controlling visits, calls, and information.
- Your parent depended on the sibling for care, housing, or finances.
- The will changed suddenly and dramatically late in life.
- The sibling found the lawyer, drove your parent to the appointments, or sat in on them.
- Your parent was ill, cognitively impaired, or emotionally vulnerable when the will was signed.
New York also pays special attention to influence inside close relationships. When the person who benefited stood in a confidential relationship with your parent — handling money, directing care, serving as agent under a power of attorney — and played a role in getting the will made, courts scrutinize the circumstances closely and may expect an explanation. The closer the relationship and the larger the role, the harder the court looks.
How A Will Contest Actually Proceeds
You cannot simply tell the court the will is unfair — you participate in the probate proceeding. When the will is offered for probate, you should receive a citation as a distributee. Appear by the return date, personally or through counsel, so you preserve your rights.
Before committing to a fight, New York lets you examine the attesting witnesses and the attorney who drafted the will. These examinations — a distinctive feature of Surrogate's Court practice — let you see the strength of your case before formal objections are filed, and the law provides a safe harbor so that conducting them does not by itself trigger a no-contest clause.
If the examinations support your suspicions, you file objections, and the case moves into discovery: medical records, financial documents, depositions of your sibling and others. As the person objecting, you bear the burden of proving undue influence.
The Evidence That Wins Or Loses These Cases
Undue influence cases are built from paper and patterns:
- Medical records showing your parent's mental state, medications, and diagnoses around the signing date.
- The drafting attorney's file — who called, who paid, who gave the instructions, and what the lawyer observed.
- Financial records showing the sibling's control over accounts, or lifetime transfers in their favor.
- A timeline connecting isolation and dependence to the change in the will.
- Witnesses — aides, neighbors, clergy, other relatives — who saw the relationship firsthand.
Be realistic and be prompt. If your sibling held a position of trust, such as caregiver or agent under a power of attorney, courts scrutinize the circumstances more closely. But suspicion alone does not carry the burden, and evidence gets harder to collect with each passing year. Acting early — before assets are distributed — protects both your proof and your recovery.
Key Takeaways
- As a disinherited child, you have standing to contest the will because you would inherit if it fails.
- Undue influence means coercion that overpowered your parent's free will — not mere persuasion.
- New York lets you examine the will's witnesses and drafter before filing formal objections.
- Isolation, dependence, a sudden change, and sibling involvement in the will's preparation are classic red flags.
- The burden of proof is on you, so medical, financial, and attorney records are critical — act early.
This article is attorney advertising and provides general information about New York law; it is not legal advice for your specific situation and does not create an attorney-client relationship. For advice about your circumstances, speak with a licensed New York attorney.