When a child is born to unmarried parents in New York, the law does not automatically recognize a legal father. That single gap can block child support, custody, and parenting time until parentage is settled in writing or by court order. Our Long Island paternity establishment lawyers at Hartin Divorce & Family Law represent mothers and fathers across Nassau and Suffolk Counties in acknowledgments, contested Family Court petitions, and genetic testing disputes.
Whether you are seeking financial support for your child or a legal foundation for your relationship with them, everything else depends on settling parentage first. The sooner that happens, the more options you keep. Call (516) 666-0539 to talk through where your case stands.
Our firm handles matrimonial and family law exclusively. Paternity is not a side practice here, and it is not something we take on between unrelated cases.
That focus matters in parentage disputes, because the filing you make today shapes the child support calculation, custody petition, and parenting schedule that follow. We look at the whole sequence before we file anything.
Our attorneys represent both mothers and fathers. A mother pursuing support and a father seeking legal standing with his child are asking the court for different things, and each position calls for different preparation. We take both.
Clients also tell us the same two things repeatedly: They want to know what their case costs, and they want their calls returned. Our fee structure is explained upfront, and questions get answered rather than queued.
With offices in Massapequa and Bay Shore, we work in both Nassau and Suffolk County Family Courts regularly. Because our practice covers child support, custody, visitation, and modifications, a paternity case does not get handed off once the Order of Filiation is signed.
That continuity saves clients from repeating their history to a new attorney at the exact moment their case turns practical. Throughout, our focus stays on outcomes that hold up for the child involved, not just the fastest resolution on paper.
Paternity establishment is the legal process of naming a person as a child's parent. Biology alone does not do it. Until parentage is legally recognized, a father has no support obligation and no automatic right to custody or parenting time.
That distinction surprises many parents. A father may live with his child, provide for the household, and appear on school forms, yet still lack the legal standing to petition a court if the relationship ends. New York provides two routes.
The simpler path is a signed Acknowledgment of Parentage. Under Family Court Act § 516-a, this document establishes parentage and support liability once both parents sign it and file it with the registrar of the district where the birth was recorded.
Hospitals typically offer the form at birth, though it can be signed later. The form is also available through local child support offices and the birth registrar. No further court proceeding is needed to confirm an unchallenged acknowledgment.
The statute limits who may use it. An acknowledgment is void if another person is already a presumed parent, if a court has entered a judgment of parentage, or if someone else has signed a valid acknowledgment for the same child.
The signing window carries a deadline worth understanding. A signatory who was 18 or older may petition to vacate the acknowledgment within the earlier of 60 days from signing or the date of a related court proceeding involving the child.
When parents disagree, or when no acknowledgment was signed, the case goes to Family Court. If the court finds that the respondent is the child's father, it enters an Order of Filiation declaring paternity under Family Court Act § 542.
According to the New York State Unified Court System, an Order of Filiation gives the father the right to custody, the right to visitation, and the responsibility of paying child support.
More people have standing than most parents expect. Under Family Court Act § 522, several parties may commence a paternity proceeding. The list covers the mother, a person alleging to be the father, the child or the child's guardian, and a public welfare official when the child receives public assistance.
Minors may file in their own right. A mother who is under 18 does not need a parent to bring the petition for her, and neither does a young father.
The person who files is the petitioner. The other parent is the respondent, and the respondent must be served with a summons and a copy of the petition before the case proceeds.
Our attorneys handle that service step carefully, because a defective service record can stall a case for months before anyone reaches the merits.
Both sides may hire their own counsel. When a party cannot afford an attorney, the court may assign one at no cost, though that assignment does not extend to every type of family case.
New York gives families a long window, but not an unlimited one. Family Court Act § 517 allows a paternity proceeding to begin during the mother's pregnancy or after the child's birth, but it cannot be brought after the child reaches 21 years of age.
One exception applies. If parentage has already been acknowledged in writing or by furnishing support, that time limit does not cut off the claim.
Waiting still costs something. Witnesses move, memories fade, and a father who has been absent for years faces different arguments than one who filed early. Support obligations also generally run forward from filing rather than backward, so delay can mean months of support that no order will ever capture.
If you are weighing whether to file now or wait, call (516) 666-0539 and we will walk through what the timing means for your specific circumstances.
Paternity cases arrive in several forms, and the strategy shifts with each one. These are the situations we see most often across Nassau and Suffolk Counties.
Establishing support obligations. A parent raising a child alone can petition to establish parentage and then pursue child support. We prepare the paternity filing so the support case that follows rests on a clean legal foundation rather than a contested record.
Securing custody and parenting time. Legal parentage is the prerequisite for asking a court for custody or a visitation schedule. Once an Order of Filiation is in place, we can move directly into a custody or parenting time petition on your behalf.
Contested paternity and genetic testing. When one party denies parentage, the case turns on evidence. We request appropriate testing, review laboratory documentation and chain of custody records, and prepare the testimony a contested hearing requires.
Challenging or vacating an acknowledgment. Some parents sign an acknowledgment and later learn the facts were different. We evaluate whether the rescission window remains open and, if it has closed, whether grounds exist to challenge the document.
Paternity when the mother is or was married. These cases carry an added legal presumption and often draw arguments about the child's existing relationships. We prepare for both the biological question and the equitable one.
Genetic testing resolves most contested paternity cases. Under Family Court Act § 532, the court must advise the parties of their right to genetic marker or DNA testing. It may then order the mother, the child, and the alleged father to submit, either on its own motion or on any party's motion.
Testing itself is straightforward. A cheek swab collects the sample, and an accredited laboratory processes the results.
The legal weight of those results is where cases turn. When a report shows at least a 95% probability of paternity, the statute creates a rebuttable presumption of paternity. That presumption shifts the burden: The respondent must then prove he is not the father rather than the petitioner proving he is.
Cost falls first on the moving party. In its order of disposition, the court may apportion that cost between the parties by ability to pay, or assess it against the party who does not prevail.
Testing is not automatic in every case. A court may decline to order it upon a written finding that testing is not in the child's best interests. That finding rests on res judicata, equitable estoppel, or the presumption of legitimacy of a child born to a married woman.
Some cases need no test at all. An Order of Filiation can be entered on consent when both parents agree on paternity, and the mother was unmarried at conception and birth. The same is possible when a mother was married, provided the mother, the spouse, and the biological father all agree.
Consent orders are difficult to undo later, which is why we advise clients to resolve any genuine doubt before signing rather than after.
Establishing parentage opens doors that were previously closed to both parents.
Child support becomes available. Once parentage is settled, either parent can pursue a support order calculated under New York's statutory formula, and the court gains authority to enforce it.
Enforcement tools matter here. New York law allows the court to address non-compliance in paternity and support proceedings through measures that reach a person's driving privileges and professional licenses.
Custody and parenting time become available as well. A father with an Order of Filiation can petition for custody or a visitation schedule, and the court decides those questions under the best interests of the child standard.
Records can also be corrected. An Order of Filiation can support adding the father to the child's birth certificate and, in some situations, changing the child's last name.
Beyond the paperwork, parentage settles questions that surface for years afterward, from medical history to coverage and benefit eligibility. Children also gain something less measurable: A documented legal relationship with both parents.
A paternity petition is filed in the Family Court of the county where either the petitioner or the respondent lives. There is no filing fee in Family Court, and cases are heard by a Judge or a Support Magistrate.
Nassau County families should note a recent change. Family Court matters are now heard at the court complex at 101 County Seat Drive in Mineola, with Family Court on the first and second floors. The 10th Judicial District confirms that the former Westbury courthouse on Old Country Road closed permanently in 2025.
Suffolk County cases are heard at the Suffolk County Family Court at 400 Carleton Avenue in Central Islip, with a second location in Riverhead.
Our attorneys appear in both counties, and we prepare clients for what their specific courthouse expects.
Family Court charges no filing fee for a paternity petition. Genetic testing costs are paid first by the moving party, and the court may reassign them later.
Often, yes. New York courts have procedures for parentage cases involving an out-of-state parent. We can review service and jurisdiction questions before anything is filed.
A refusal does not end the case. If a respondent willfully fails to comply or appear, the court can enter a temporary support order anyway.
A paternity proceeding may begin during pregnancy under New York law. Courts generally address genetic testing and the final order after the child is born.
Not by itself. Legal parentage comes from a filed Acknowledgment of Parentage or a court Order of Filiation, not from the birth certificate alone.
Only by proving fraud, duress, or a material mistake of fact. The court then decides whether genetic testing serves the child's best interests.
Parentage questions rarely get easier with time, and the filing you make first tends to shape everything that follows. Whether you are pursuing support for your child, seeking legal standing as a parent, or responding to a petition someone else filed, you should understand your position before the first court date.
Hartin Divorce & Family Law represents parents throughout Long Island, Nassau County, and Suffolk County in paternity and parentage matters. Attorney Thomas Hartin and our team will review your circumstances, explain the route that fits them, and handle the filing from start to finish.
Call our Long Island paternity establishment lawyers at (516) 666-0539 or contact our office to schedule a free case evaluation.
