Paternity Attorney in Massachusetts

120+ Years of Combined Experience Protecting Parental Rights Across the South Shore & Cape Cod

Legal paternity is the foundation of every parental right and obligation an unmarried father holds in Massachusetts. Without it, he has no enforceable claim to custody or parenting time, regardless of his role in the child’s life. Mothers need it to pursue child support. Children need it to access health insurance, inheritance rights, and paternal medical history. At Lynch & Owens, P.C., we represent both mothers and fathers in paternity matters across the Probate and Family Courts in Norfolk, Plymouth, and Barnstable counties, backed by over 120 years of combined Massachusetts family law experience.

Our attorneys have handled family law matters since 1995, with a recognized practice in unmarried parent and father’s rights cases that reaches from Boston through the South Shore and down to Cape Cod.

If you need a Massachusetts paternity attorney, we’re ready to help. Call us at (781) 253-2049 or use our online contact form to schedule a consultation.

How Paternity Is Established in Massachusetts

Massachusetts paternity law is governed by M.G.L. c. 209C, the statute addressing children born outside of marriage. There are two paths to establishing paternity in Massachusetts: voluntary acknowledgment and judicial adjudication.

Voluntary Acknowledgment of Parentage

The voluntary route uses an Acknowledgment of Parentage signed by both parents before a notary. If neither parent rescinds it within 60 days of signing, the acknowledgment carries the same legal weight as a court judgment. An acknowledgment executed when the child is six months or older, or one that isn’t rescinded within the 60-day window, waives the right to genetic marker testing. That makes timing and informed decision-making important before signing.

Judicial Adjudication

When either parent contests paternity, either may file a Complaint to Establish Paternity in the Probate and Family Court. Cases involving custody or parenting time must go to Probate and Family Court; support-only matters may proceed in district court. The case is filed in the county where the child or at least one parent resides.

Genetic Marker Testing & Court Orders

If paternity is disputed, the court may order genetic marker testing. The Massachusetts Department of Revenue can arrange testing at little or no cost depending on the parties’ finances. Massachusetts court time standards set a goal of resolving paternity cases within eight months, though individual timelines vary.

Once paternity is established, the court can enter orders for legal custody, physical custody, parenting time, child support calculated under the Massachusetts Child Support Guidelines, and health insurance coverage. Mothers who establish paternity through the courts may also seek retroactive child support dating back to the child’s birth.

What Legal Paternity Means for Fathers, Mothers, & Children

In Massachusetts, the mother is presumed to be the sole legal custodian of a child born outside of marriage. An unmarried father has no right to seek custody or parenting time until paternity is legally established, even if he is named on the birth certificate and has been actively involved in the child’s life. Once paternity is established, he can petition for legal custody, physical custody, and parenting time on the same basis as a parent in a divorce proceeding.

For children, the benefits extend beyond parenting arrangements. Established paternity opens access to the father’s health insurance, Social Security survivor benefits, inheritance rights, and paternal medical history. These practical consequences make paternity a matter of the child’s long-term welfare, not just a legal formality between the parents.

Paternity Matters We Handle

Our firm handles the full range of paternity-related proceedings under M.G.L. c. 209C:

• Filing a Complaint to Establish Paternity: We represent mothers and fathers initiating paternity actions in the appropriate Probate and Family Court.
• Defending against a paternity action: We advise clients who have been served and need to understand their rights and options before responding.
• Challenging a voluntary acknowledgment: Rescinding an acknowledgment after the 60-day window requires demonstrating fraud, duress, or material mistake of fact. This is a narrow standard that calls for careful legal strategy.
• Custody, parenting time, and child support: Once paternity is established, we handle the full range of related family law matters, including negotiated parenting plans and contested hearings.
• Modification and contempt: We pursue and defend modification actions when circumstances change, and contempt actions when existing orders aren’t followed.

A paternity action can be initiated by the mother, the father, the child, a guardian, or the Massachusetts Department of Revenue on behalf of a child receiving public assistance. We counsel clients through all of these entry points, whether the path leads to a negotiated resolution, mediation, or trial.

South Shore & Cape Cod Paternity Representation From Lynch & Owens, P.C.

Our attorneys appear regularly in the Probate and Family Courts in Norfolk, Plymouth, and Barnstable counties. We’ve built working relationships with judges and court personnel across these courts over decades of practice, and we bring that familiarity to every case we handle on the South Shore and Cape Cod.

We combine the legal depth of a Boston-caliber firm with the responsive client service of a local practice. That means returning calls, explaining developments in plain terms, and building a strategy around each client’s specific goals rather than a generic playbook. We’re prepared to negotiate a cost-effective resolution when that serves our client, and to take a case to trial when it doesn’t. Lynch & Owens, P.C. has been recognized in the New York Times, the Boston Globe, and Massachusetts Lawyers Weekly for our standing in the Massachusetts legal community.