Paternity Lawyer Nassau County, NY

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Paternity Lawyer Nassau County, NY



Paternity Lawyer Nassau County, NY

Paternity cases in Nassau County affect parental rights, child support, custody, and family relationships. Mr. Sris and the firm’s Of Counsel attorneys represent mothers and fathers in Nassau County Family Court, where paternity petitions are heard. Whether you are seeking to establish legal fatherhood or to contest an acknowledgment, working with experienced counsel helps you understand the process and protect your interests. Law Offices Of SRIS, P.C. Practices family law in New York and four other jurisdictions. Reach our firm at (888) 437-7747 to request a consultation. Law Offices Of SRIS, P.C. – Advocacy Without Borders.

What Paternity Law Means in Nassau County

In New York, legal paternity is the formal recognition of a man as a child’s father. When parents are married at the time of a child’s birth, the husband is generally presumed to be the legal father. If the parents are not married, paternity must be established before a father can assert custody or visitation rights, and before a child can receive financial support, inheritance rights, or access to certain benefits.

Nassau County matters are heard in the Nassau County Family Court, located at 100 Supreme Court Drive in Mineola. The Family Court has jurisdiction over paternity petitions, child support, custody, and visitation. Cases may also intersect with proceedings in the New York Supreme Court, Nassau County, if a divorce or equitable distribution matter is pending. The court’s decisions are guided by the best interests of the child and the applicable provisions of New York Domestic Relations Law and the Family Court Act.

How Mr. Sris and the Firm’s Of Counsel Attorneys Handle Paternity Cases

When you work with Law Offices Of SRIS, P.C., you work with a multi-state practice that has handled family law matters since 1997. Mr. Sris and the firm’s Of Counsel attorneys begin by evaluating the facts of your situation: whether paternity has been acknowledged voluntarily, whether genetic testing is needed, and what ancillary issues—such as custody or support—may need to be addressed concurrently.

The process often involves filing a paternity petition with the Nassau County Family Court, possibly initiating genetic marker testing, and appearing at hearings where the court determines parentage. Our attorneys prepare you for each step, explain the relevant legal standards, and advocate for an outcome that reflects the child’s welfare and your rights. Throughout the matter, we keep you informed and work to resolve issues without unnecessary delay.

About Mr. Sris and the Firm’s Of Counsel Attorneys

Mr. Sris, Owner and Founder of Law Offices Of SRIS, P.C., is admitted in Virginia, Maryland, the District of Columbia, New Jersey, and New York. A former prosecutor, he has built a practice that serves clients in family law and other areas across multiple states. Mr. Sris testified before the Virginia House Courts of Justice Committee in support of 2019 HB 635 (chief patron Del. David Bulova).

The firm’s Of Counsel attorneys bring substantial experience to family law matters. Each attorney is independent, contracted directly with the firm, and collectively provides a depth of knowledge that benefits clients in Nassau County and throughout New York. Together, Mr. Sris and the firm’s Of Counsel attorneys work toward favorable resolutions for the people they represent.

Frequently Asked Questions

How do you establish paternity in Nassau County, New York?

Paternity is established by signing a voluntary Acknowledgment of Parentage or through a court order after a petition is filed and evidence, which may include genetic testing, is reviewed. If both parents agree on parentage, an Acknowledgment of Parentage form, typically signed at the hospital or later at a local registrar, creates legal paternity. When parentage is disputed, a party may file a petition in Nassau County Family Court. The court can order genetic testing, and if the results establish a sufficiently high probability of paternity, the judge issues an order of filiation. That order has the same effect as a voluntary acknowledgment.

What rights does a legal father gain after paternity is established?

A legal father may seek custody and visitation, and the child becomes eligible for support, inheritance, and benefits such as Social Security or health insurance through the father. In New York, once paternity is legally established, the father can petition the Family Court or Supreme Court for custody or parenting time. The child also gains the right to financial support, which is calculated under the Child Support Standards Act. Paternity also gives the child access to medical history and other benefits tied to the father’s identity. The court’s decisions on custody and support will be based on the child’s best interests.

Can a paternity acknowledgment be challenged in Nassau County?

Yes, an acknowledgment of paternity can be challenged by filing a petition to vacate the acknowledgment within the applicable statutory period, usually based on fraud, duress, or material mistake of fact. In New York, a party may seek to set aside an Acknowledgment of Parentage if they can demonstrate that it was signed under improper circumstances or that the person who signed is not the biological father. The challenge must be brought within the time limits set by statute. The Nassau County Family Court will consider the evidence, and in some cases, genetic testing may be ordered. Because the timelines and legal standards are strict, it is important to seek legal advice promptly.

How long does a paternity case typically take in Nassau County?

The timeline for a paternity case depends on the court’s calendar, whether genetic testing is needed, and whether the parties agree on parentage. If both parents consent and an acknowledgment is signed, paternity can be established relatively quickly. When a petition is filed and genetic testing is conducted, the process may take several months. Contested matters that involve custody or support issues can extend the timeline further. The Nassau County Family Court schedules hearings based on its docket, and the pace of the case can be influenced by the availability of witnesses and attorneys. An experienced attorney can help move the matter forward efficiently.

Do I need a lawyer for a paternity case in Nassau County?

You are not required to have a lawyer, but representation helps you understand your rights, navigate court procedures, and present a strong case. Paternity proceedings involve legal standards, evidentiary rules, and procedural requirements that can be difficult to manage on your own. An attorney can help you gather the right documentation, request genetic testing if needed, and advocate for your interests regarding custody and support. Because the outcome of a paternity case can affect your relationship with the child and your financial obligations for many years, having experienced legal guidance is often a prudent choice.

What is the role of genetic testing in Nassau County paternity cases?

The Family Court may order genetic marker testing when paternity is disputed, and the results are usually given significant weight in determining legal parentage. If a party requests testing or the court determines it is necessary, both the alleged father, the child, and the mother submit to a DNA test conducted by an accredited laboratory. The results, which calculate a probability of paternity, are presented as evidence. If the test establishes a high likelihood of paternity, the court will typically issue an order of filiation. If the alleged father is excluded, the petition may be dismissed. The testing process is governed by court rules that ensure accuracy and reliability.

For guidance on your specific situation, reach Law Offices Of SRIS, P.C. at (888) 437-7747.

Additional Resources

Learn more about family law in other New York counties:
Suffolk County Family Law |
New York County Family Law |
Westchester County Family Law |
Kings County Family Law

Official primary sources:
Nassau County Courts |
New York Domestic Relations Law

Last reviewed: July 2026

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Attorney advertising. This page is for general informational purposes only and does not constitute legal advice, nor does it create an attorney-client relationship. Statutes and their application change and vary by case. Prior results do not guarantee a similar outcome; results may vary. For advice about your specific situation, consult a licensed attorney. Attorney responsible for this advertising: Mr. Sris.