Maine Custody Laws for Unmarried Parents

In Maine, unmarried parents have the same rights to seek custody — called parental rights and responsibilities — as married parents going through divorce. But there's a critical prerequisite for fathers: legal paternity must be established before the court can address custody.

Why Paternity Matters

When parents are married, Maine law presumes the husband is the child's legal father. No unmarried father has automatic legal rights. Until paternity is legally established, an unmarried father has no standing to file for parental rights, no right to parent-child contact, and no obligation to pay child support.

This means that in a crisis — the mother moves to another state, refuses contact, or makes unilateral decisions about the child — an unmarried father with no legal paternity has no legal recourse.

How to Establish Paternity in Maine

There are two paths:

Voluntary Acknowledgment of Paternity. Both parents sign an Acknowledgment of Paternity, typically at the hospital after birth or later through the Maine Office of Vital Records. Once signed and filed, it has the same legal effect as a court order establishing paternity. Either parent has 60 days to rescind the acknowledgment; after that, it's binding unless challenged on grounds of fraud, duress, or material mistake of fact.

Court-ordered paternity. If the parents disagree, either parent (or the state, through DHHS Child Support Enforcement) can file a Complaint for Determination of Parentage (Form FM-006). The court can order genetic testing. If testing confirms paternity, the court enters a paternity order.

Filing for Parental Rights as an Unmarried Parent

Once paternity is established, either parent can file a Complaint for Parental Rights and Responsibilities and Child Support (Form FM-006) with the District Court. The process mirrors a divorce custody case:

1. File the complaint and Child Support Affidavit (FM-050)
2. Purchase the official Family Matter Summons (FM-038) from the court clerk ($5)
3. Serve the other parent
4. Attend the Case Management Conference
5. Participate in CADRES mediation if issues are unresolved
6. Proceed to trial if mediation fails

The court applies the same best-interest standard and the same 19 statutory factors used in divorce cases. Being unmarried doesn't change the analytical framework.

What Unmarried Fathers Should Know

Signing the birth certificate isn't enough. Being listed on the birth certificate provides some evidence of paternity but doesn't automatically establish legal parental rights. You need either a signed Acknowledgment of Paternity or a court order.

Don't wait for a crisis. If you're an involved father without legal paternity, file to establish it now. Waiting until there's a dispute puts you in a reactive position with no legal standing.

Child support and custody are linked but separate. Establishing paternity triggers a child support obligation — but it also gives you the right to seek parenting time. Courts generally won't deny contact solely because a parent owes back support.

Mothers can file too. If you're an unmarried mother and the father isn't contributing financially or refuses to cooperate on parenting decisions, filing for a formal custody and support order gives you enforceable legal protections.

The Maine Child Custody & Parenting Plan Guide covers the paternity and unmarried-parent filing process step by step, including the specific forms, timelines, and court expectations for establishing parental rights outside of marriage.

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