Cross-border divorce and child custody: choosing family lawyers in two countries

A divorce between spouses who live in, come from, or own property in different countries is not one case. It is often two or more legal systems looking at the same family. Each country may have its own rules on which court can hear the divorce, which law applies to property, how maintenance is calculated, and where decisions about children should be made. For parents, the stakes are highest around custody, contact and relocation, because a decision made in one country does not automatically bind the other.

This guide explains why cross-border family matters usually need lawyers in two countries, what the main international treaty on child abduction actually does, and how to choose and coordinate family lawyers so that they work as one team rather than two separate files.

Why one family lawyer is rarely enough

A family lawyer is qualified in the law of the place where they are admitted. A lawyer in one country can explain how its courts treat jurisdiction, assets and children, but cannot give reliable advice on how a court in another country will react to the same facts. In cross-border cases, three questions tend to arise early, and each can have a different answer in each country:

• Jurisdiction: which court is allowed to hear the divorce, and which court is allowed to decide about the children. These are not always the same court.
• Applicable law: whether the court applies its own law or the law of another country, for example to the division of property.
• Recognition and enforcement: whether an order made in one country will be accepted and enforced in the other, and what steps that takes.

Because the answers depend on national law, many families instruct a lead lawyer in the country where proceedings are most likely to be decided, and a second lawyer in the other country to confirm how any order will be treated there. Timing matters: in some systems, the first court to be seised of a case can gain priority, so speaking to lawyers in both countries before filing anywhere is a practical safeguard.

The Hague 1980 Child Abduction Convention in brief

The best-known international instrument in this area is the Hague Convention of 25 October 1980 on the Civil Aspects of International Child Abduction, developed by the Hague Conference on Private International Law (HCCH). It entered into force on 1 December 1983, and the HCCH status table listed 103 Contracting Parties when checked in October 2026 (HCCH, status table, checked 10 October 2026).

The Convention is narrower than many parents expect. It is not a custody law, and it does not decide which parent should have the child. Its central aim is to return a wrongfully removed or retained child to the country of their habitual residence, so that the courts there can decide custody questions. Key points from the text (HCCH, Convention full text):

• Wrongful removal or retention (Article 3): removal or retention is wrongful where it breaches rights of custody under the law of the State where the child was habitually resident immediately before, and those rights were actually being exercised, or would have been but for the removal. Custody rights can arise by operation of law, by a judicial or administrative decision, or by a legally effective agreement.
• Age limit (Article 4): the Convention ceases to apply when the child reaches 16.
• Central Authorities (Article 6): each Contracting State must designate a Central Authority to carry out its duties under the Convention, which in practice is often the first point of contact for a left-behind parent.
• The one-year marker (Article 12): where proceedings start within one year of the wrongful removal or retention, the authority must order the child's return forthwith. After a year, return is still ordered unless it is shown that the child is now settled in the new environment.
• Exceptions (Article 13): return may be refused in limited cases, including where there is a grave risk that return would expose the child to physical or psychological harm or otherwise place the child in an intolerable situation (Article 13(b)).
• Timing between States (Article 35): between Contracting States, the Convention applies only to wrongful removals or retentions that occur after it entered into force for those States.

The status table also marks some accessions as giving rise to an acceptance procedure. In practice this means a parent's lawyer should check not only that both countries appear on the HCCH status table, but that the Convention is actually in force between those two particular countries, and from what date.

When the other country is not a Hague partner

If the Convention is not in force between the two countries, there is no treaty-based return mechanism under it. A parent then generally depends on the domestic law and courts of the country where the child is, and on whether that country will recognise orders made elsewhere. This is exactly the situation where a local family lawyer in the second country becomes essential, because the route, the evidence needed and the likely timetable all depend on that country's own procedure.

A five-step framework for choosing lawyers in two countries

1. Map the connections. List where each spouse lives and holds citizenship, where the children have lived and gone to school over recent years, where the marriage took place, and where assets and pensions are held. Lawyers use these facts to analyse jurisdiction and habitual residence, so having them written down saves time and fees.
2. Identify the deciding forum. Ask a lawyer in each candidate country which court could hear the divorce and which could decide about the children. Compare the answers before anyone files.
3. Check credentials in each country. Confirm that each lawyer is admitted and currently entitled to practise with the relevant regulator or law society, and that their practice actually covers family law, including international cases. Where a public roll exists, use it.
4. Agree who leads and how they communicate. Decide which lawyer leads strategy, how documents and evidence will be shared, which language is used, and whether translations need to be certified for court use.
5. Plan for recognition from the start. Before an agreement or order is finalised in one country, have the other lawyer confirm what is needed for it to be recognised and enforced there. A consent order that is unenforceable abroad offers little protection.

Questions to ask a prospective family lawyer

• Have you handled cases involving the other country, or involving the Hague 1980 Convention?
• Who is your usual counterpart in the other jurisdiction, and how do you coordinate?
• Which court is likely to have jurisdiction over the divorce, and which over the children?
• What are the time limits I should be aware of now?
• How are your fees structured, and how will costs in both countries be estimated and reported?
• Do you offer or recommend mediation, and is cross-border family mediation available for my situation?

Finding family lawyers in another country

Global Law Lists maintains an international legal network of law firms that can be filtered by practice area and country. The family law firms page is a starting point for locating firms that list family law as a practice area, and the law firm lists group firms by country. A listing is not a substitute for checking admission with the local regulator, and the steps above still apply.

Disclosure: Global Law Lists operates the international legal network and law firm lists linked in this article. Listed firms may hold paid memberships; how listings are checked and ordered is explained in the verification methodology.

Frequently asked questions

Do I need a family lawyer in both countries for an international divorce?

Often, yes. A lawyer can only advise reliably on the law of the place where they are admitted. When the divorce, the children or the assets connect to two countries, a lawyer in each country helps confirm jurisdiction and whether an order made in one will be recognised in the other.

What does the Hague Child Abduction Convention do?

It provides a mechanism for returning a child who was wrongfully removed to, or retained in, another Contracting State, so that custody can be decided by the courts of the child's habitual residence. It does not itself decide custody.

Is there a time limit under the Hague Convention?

Article 12 provides that where proceedings start within one year of the wrongful removal or retention, return must be ordered forthwith. After one year, return is still ordered unless the child is shown to be settled in the new environment, so acting quickly matters.

Does the Convention apply to teenagers?

The Convention stops applying when the child reaches 16 (Article 4).

How do I choose a family lawyer for a cross-border case?

Check admission with the local regulator, ask about experience with the other country and with Hague cases, agree who leads, and ask how recognition of any order in the other country will be handled.

Sources

• Hague Convention of 25 October 1980 on the Civil Aspects of International Child Abduction, full text, Hague Conference on Private International Law (HCCH), checked 10 October 2026.
• Status table for the 1980 Child Abduction Convention, HCCH, checked 10 October 2026.

This article is general information, not legal advice. Laws and procedures change; confirm the current position with a qualified lawyer in the relevant jurisdiction.