Multi-State Family Law, Probate & Interstate Adoption
When a family-law, probate, or adoption matter involves more than one state, the first critical question is jurisdiction—which court has the legal authority to hear and decide the case. Incorrect assumptions about jurisdiction can produce conflicting orders, wasted time and expense, or proceedings that later prove invalid. Hartley Vojtik Law Group regularly advises clients on multi-state jurisdictional questions arising under California and Texas law.
Family Law Jurisdiction
In divorce, child custody, parentage, and related proceedings, jurisdiction is governed by state statutes, constitutional due-process principles, and uniform acts.
- Child custody and visitation. The Uniform Child Custody Jurisdiction and Enforcement Act (UCCJEA), adopted in California, Texas, and nearly every other state, determines which court may make or modify custody orders. Primary authority rests with the child’s “home state” (generally the state where the child has lived with a parent for six consecutive months immediately before the case begins). Other bases include significant connections with a state and temporary emergency jurisdiction. Once an initial custody determination is made, the issuing state ordinarily retains exclusive, continuing jurisdiction until specific statutory conditions are met.
- Divorce and related financial issues. A court must have personal jurisdiction over the respondent (or the respondent must consent) before it can issue enforceable orders dividing property, awarding spousal support, or resolving other personal obligations. Subject-matter jurisdiction over the marriage itself is typically based on domicile or residency of at least one spouse.
- Relocation, modification, and enforcement. Interstate moves frequently trigger fresh jurisdictional analysis under the UCCJEA and related enforcement statutes.

Interstate Adoption Jurisdiction
Adoption is a specialized subset of family law in which multi-state issues arise frequently. When the prospective adoptive child is located (or born) in one state and the prospective adoptive parents live in another, the Interstate Compact on the Placement of Children (ICPC) governs the placement process. Additional jurisdictional requirements may apply under state adoption statutes and, in contested matters, the UCCJEA. Managing these cases effectively often requires counsel who can coordinate filings, home studies, and court appearances across state lines—sometimes by associating with or sponsoring local co-counsel through pro hac vice admission (see our Pro Hac Vice Services page).
Probate and Estate Jurisdiction
When a decedent owned real property or other assets in more than one state, primary (domiciliary) probate is usually opened in the state of the decedent’s domicile at death. Ancillary probate (or local administration) is typically required in every other state where real property is located, because real estate is governed by the law of the state where it sits. Without careful coordination, families can face parallel proceedings, duplicated effort, and inconsistent rulings.
How Hartley Vojtik Law Group Assists
Because our attorneys are licensed in both California and Texas, we evaluate jurisdictional questions under the laws of both states and design practical strategies that promote efficiency and consistency. Whether the issue involves determining the proper forum for an initial custody determination, enforcing an out-of-state order, opening or coordinating ancillary probate, or navigating interstate adoption under the ICPC, early jurisdictional analysis often prevents costly forum disputes.
How Hartley Vojtik Law Group Assists
Because our attorneys are licensed in both California and Texas, we evaluate jurisdictional questions under the laws of both states and design practical strategies that promote efficiency and consistency. Whether the issue involves determining the proper forum for an initial custody determination, enforcing an out-of-state order, opening or coordinating ancillary probate, or navigating interstate adoption under the ICPC, early jurisdictional analysis often prevents costly forum disputes.
Related topics: Choice of law (which state’s substantive rules apply once the proper court is identified) and pro hac vice admission (how counsel can appear across state lines while maintaining unity of representation) are addressed on our companion pages.
Contact Hartley Vojtik Law Group to discuss the jurisdictional aspects of your multi-state family-law, probate, or interstate adoption matter.
