Reviewed by Laurence P. Banville, Esq.Can you sue on behalf of another person in New York?
As a rule, a lawsuit belongs to the person who was harmed. You cannot simply walk into court and sue because someone you care about was injured. New York courts require that the claim be brought by the injured party or by someone the law recognizes as their proper legal representative. If you do not fall into one of those categories, the right move is usually to help the injured person bring their own claim, not to bring it for them.
There are well-defined exceptions where you genuinely can sue for another person. The most common are minors, adults who lack the capacity to act for themselves, and people who have died. Each has its own rules about who is allowed to step in.
Suing on behalf of a child
A minor (under 18 in New York) cannot file a lawsuit in their own name. Instead, a parent or a court-appointed guardian brings the case as the child’s representative — often called a “guardian ad litem” or “next friend” for the litigation. The claim is still the child’s; the adult is simply standing in to manage it.
New York also gives children extra time. The personal injury statute of limitations is normally three years CPLR §214, but for a minor the clock is generally paused (tolled) until the child turns 18, so a child often has additional time to sue after reaching adulthood. A parent may also have a separate claim for the medical bills and related costs they paid for the injured child.
Suing on behalf of an incapacitated adult
If an adult cannot manage their own affairs — because of a serious brain injury, advanced dementia, or another condition — a court can appoint a guardian to act for them, or they may have already signed a durable power of attorney naming an agent. The appointed guardian or authorized agent can pursue an injury claim for that person. The same general PI deadline applies CPLR §214, though the deadline may be tolled while the person remains legally disabled. Because guardianship and capacity questions are technical, this is an area where confirming your legal authority before filing matters a great deal.
Suing after someone has died
When the injured person has passed away, the claim does not simply disappear — but a friend or relative cannot sue on their own. Only the personal representative of the deceased’s estate (the executor or administrator appointed by the Surrogate’s Court) can bring a wrongful death claim. New York’s wrongful death deadline is generally two years from the date of death EPTL §5-4.1, and the recovery is for the benefit of the surviving family members. A separate “survival” claim may also exist for the suffering the person experienced before death.
What to do if you want to help someone with a claim
If the injured person is an adult who can act for themselves, the cleanest path is to help them speak with a lawyer directly rather than trying to file for them. If they are a child, are incapacitated, or have died, gather the documents that establish your authority — proof of your relationship, any guardianship or power-of-attorney paperwork, or estate appointment papers — before anyone files. Acting quickly also protects the deadlines, which can be shorter when a government entity is involved. Outcomes always depend on the specific facts, and getting the right person named as the claimant early avoids problems later.
Frequently asked questions
Can I sue someone for hurting my family member?
Generally no, not in your own name, unless the law gives you authority to represent them. If your relative is a competent adult, they bring the claim themselves. You can sue on their behalf only as the parent or guardian of a child, the guardian or power-of-attorney agent of an incapacitated adult, or the appointed representative of a deceased person's estate.
Who can file a lawsuit for an injured child in New York?
A parent or a court-appointed guardian files on the child's behalf, since a minor cannot sue in their own name. The claim still belongs to the child. New York also pauses the statute of limitations for minors, so the deadline to sue is generally extended until after the child turns 18.
Can I sue on behalf of a parent with dementia?
You can if you have the legal authority to act for them, such as a court-appointed guardianship or a durable power of attorney that covers legal claims. Without that authority, you cannot file for them. Because capacity and guardianship rules are technical, confirm your standing before any case is filed.
Who can bring a wrongful death claim in New York?
Only the personal representative of the deceased person's estate — the executor or administrator appointed by the Surrogate's Court — can bring a wrongful death claim. The recovery benefits the surviving family. The deadline is generally two years from the date of death under EPTL section 5-4.1.
What is the deadline to sue in a New York injury case?
Most personal injury claims must be filed within three years of the injury under CPLR section 214. The clock can be paused for minors until they turn 18 and for adults who are legally disabled. Different and often shorter deadlines apply to medical malpractice and to claims against government entities, so it is wise to confirm your specific deadline early.