Steven J. Mandel, Hon. Jane Pearl (Ret.) and The Mandel Law Firm team have joined Warshaw Burstein, LLP, a full-service law firm in New York City, effective February 2026
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Grandparent & Non-Biological Parent Custody Attorney in Manhattan

The bond between a grandparent and grandchild — or between a devoted non-biological parent and the child they have raised — is profound and real. When circumstances threaten that bond, the law provides avenues for protection. But those avenues are not always straightforward, and navigating them requires a knowledgeable attorney who understands both the legal standards and the human stakes involved. Steven J. Mandel at Warshaw Burstein, LLP, has fought for grandparents and non-biological parents throughout Manhattan and New York City.

Grandparent Visitation Rights in New York

New York law recognizes that grandparents play an important role in children’s lives and provides a legal mechanism — Domestic Relations Law Section 72 — for grandparents to petition for court-ordered visitation. Standing to petition exists where at least one parent is deceased, or where equitable circumstances exist, such as a grandparent who had a meaningful, regular relationship with the grandchild that a parent has arbitrarily severed.

Standing is only the first hurdle. Even with standing, the court must then determine whether visitation is in the best interests of the child — a separate and substantial inquiry. A grandparent with a documented, loving, long-standing relationship with the grandchild is in the strongest possible position.

Grandparent Custody: When Parents Cannot or Will Not Parent

Grandparent custody is a more demanding legal undertaking than visitation. New York law strongly presumes that children should be in the custody of their biological parents. To overcome this presumption, a grandparent must demonstrate extraordinary circumstances — situations where parental custody is genuinely contrary to the child’s welfare.

  • Parental abandonment — the parent has left the child without care or contact
  • Parental unfitness — substance abuse, domestic violence, or mental illness that endangers the child
  • Extended de facto custody — the grandparent has been the child’s primary caregiver for an extended period
  • Parental consent — the parent agrees that grandparent custody is appropriate

Non-Biological Parent Rights in Manhattan

For non-biological parents — step-parents, long-term partners of a biological parent, or others who have functioned fully as a parent — New York law is evolving. While there is no automatic right to custody or visitation for non-biological parents, courts have recognized claims under doctrines of de facto parentage, equitable estoppel, and functional parenthood where the non-biological parent has been a central figure in the child’s life.

Legal adoption, second-parent adoption, or a court-issued parentage order creates full and unambiguous parental rights — and is always the preferred route where possible. Steven J. Mandel advises non-biological parents on their options and advocates vigorously for the protection of bonds that matter deeply to children’s wellbeing.

Call (646) 770-3868 for a consultation about grandparent or non-biological parent custody rights.

Frequently Asked Questions: Grandparent & Non-Biological Parent Custody Attorney in Manhattan

Q1: Do grandparents have visitation rights in New York?

Yes, under certain circumstances. New York Domestic Relations Law Section 72 allows grandparents to petition the court for visitation if one or both parents are deceased, or where equity — fairness — requires it. The court first determines whether the grandparent has standing to seek visitation, then decides whether visitation is in the best interests of the child. A meaningful pre-existing relationship between grandparent and grandchild significantly strengthens a petition.

Q2: Can a grandparent seek custody of a grandchild in New York?

Yes. Grandparents can seek custody of a grandchild when extraordinary circumstances exist — such as parental abandonment, unfitness, persistent neglect, or where the child has been living with the grandparent for an extended period and has developed a strong bond. Courts are reluctant to remove children from parental custody absent extraordinary circumstances, but where those circumstances exist, grandparent custody petitions can be successful.

Q3: What is ‘extraordinary circumstances’ in a New York grandparent custody case?

Extraordinary circumstances is the legal threshold that non-parents — including grandparents — must meet to be awarded custody over a biological parent’s objection. Courts have found extraordinary circumstances where a parent has abandoned a child, where the child has lived with the grandparent for an extended period and formed a primary attachment, where a parent is unfit due to substance abuse, mental illness, or neglect, or where other compelling factors make parental custody contrary to the child’s welfare.

Q4: How can a grandparent establish standing for a visitation petition in New York?

To establish standing for a visitation petition, a grandparent must show either that a parent is deceased, or that equitable circumstances exist warranting court intervention. Courts have found equitable standing where a grandparent played a significant role in the child’s life, where a parent has cut off contact arbitrarily, or where other factors make it equitable for the court to consider the grandparent’s petition. Documenting the history of the grandparent-grandchild relationship is essential.

Q5: What rights does a step-parent or non-biological parent have in a New York custody case?

Step-parents and other non-biological parents generally do not have automatic custody or visitation rights in New York. However, a non-biological parent who has functioned as a de facto parent — raising the child, providing financially, and forming a strong attachment — may have claims under evolving New York case law. Legal adoption, second-parent adoption, or a formal parentage order creates full legal rights. An experienced family law attorney can assess your specific situation.

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