Interstate Child Custody & Jurisdiction Disputes

Last updated on February 18, 2026

Navigating the “Massachusetts Exception” in Multi-State Cases

One of the most complex battles in family law occurs when parents live in different states. If your child has moved, or if an out-of-state parent has filed for custody, you are facing a critical question: Which court has the legal power to decide your case?

Determining jurisdiction is not a mere technicality; it often dictates the outcome of the entire dispute. At the Law Offices of Andrew S. Guisbond, we specialize in the high-stakes litigation required when Massachusetts law clashes with the rest of the country.

The Legal Patchwork: MCCJA vs. UCCJEA

As of 2026, Massachusetts remains the only state in the nation that has not fully replaced its original custody laws with the Uniform Child Custody Jurisdiction and Enforcement Act (UCCJEA).

While 49 other states operate under a shared set of rules, custody jurisdiction in the Commonwealth is still primarily governed by the Massachusetts Child Custody Jurisdiction Act (MCCJA), codified at M.G.L. c. 209B.

How Massachusetts Determines Jurisdiction (M.G.L. c. 209B)

A Massachusetts court must have “subject matter jurisdiction” before it can issue a custody order. We focus on three primary pathways:

1. The “Home State” Rule
Massachusetts is the Home State if the child has lived here with a parent for at least six consecutive months immediately prior to filing.

• If MA is Home State: We establish custody here.
• If MA is NOT Home State: We move to dismiss improper filings.

2. Significant Connection
If no “Home State” exists, MA may step in if the child and one parent have a significant connection to the Commonwealth (school, doctors, family) and evidence exists here regarding the child’s care.

3. Emergency Jurisdiction
MA courts can issue emergency orders to protect a child physically present in the state if the child has been abandoned or is threatened with mistreatment or abuse.

Enforcing and Modifying Out-of-State Orders

Custody orders from other states (like New York, Florida, or California) are not automatically enforceable by local Massachusetts police.

• Registering a Foreign Judgment: We assist in filing certified out-of-state orders with the MA Probate and Family Court. Once registered under M.G.L. c. 209B, § 12, it has the same force as a local judgment.
• Modification Limits: A Massachusetts judge generally cannot modify another state’s order unless that state no longer has jurisdiction or has formally declined it.

Strategic Advocacy: Preventing “Forum Shopping”

Interstate custody is often a race against time. If a parent moves a child, a “jurisdictional clock” begins to tick. We act quickly to “anchor” the case in the proper venue. Furthermore, we leverage 2026 court standards for video and telephonic testimony to reduce the travel burden for our out-of-state clients.