Inheritance and divorce across borders, navigated by a Tokyo‑based attorney licensed in Japan and the state of California.

Cross-Border Inheritance & Family Lawyer in Japan

Legal Profession Corporation CastGlobalToikyo Office 34F Atago Green Hills MORI Tower2-5-1 Atago, Minato-ku,
Tokyo、105-6234, Japan

Office Hours　
9:30～17:30
　　　　 on weekdays

050-3649-6002

Please click here for contact

Japanese and California-licensed attorney focusing on cross-border divorce, property issues, international inheritance, and adoption involving Japan.

Assistance is provided to foreign heirs, executors, and attorneys dealing with Japanese assets such as bank accounts, real estate, and other property in international estates.

Cross-Border Inheritance and Family Matters Involving Japan　

This website provides information on cross-border inheritance and family matters involving Japan, particularly cases connected with the United States.

It is operated by a Japanese attorney who is also licensed in California and focuses on legal issues involving Japanese assets in international estates.

Assistance is provided to foreign heirs, executors, and attorneys dealing with Japanese bank accounts, real estate, and other property located in Japan.

Welcome to this website

This website is operated by a Japanese attorney who is also licensed in California. The practice focuses on cross-border legal matters involving Japan, particularly international inheritance and family law cases.

Legal assistance is provided to overseas clients and foreign attorneys who need advice or representation in matters involving Japanese assets such as bank accounts, real estate, and other property.

Many matters involve legal issues between Japan and the United States, including inheritance and cross-border financial issues in family law cases.

Consultations with overseas clients are available via Zoom and other online meeting systems. Legal assistance is also provided to foreign attorneys who require advice on Japanese law in cross-border inheritance and family matters.

Practice Areas

Please feel free to contact us for assistance regarding the following kinds of legal matters in particular:

Cross-Border Inheritance Involving Japan
We assist foreign heirs, executors, and attorneys dealing with Japanese assets in international estates. This includes matters involving Japanese bank accounts, real estate, and other property owned by individuals connected to Japan.

US–Japan Inheritance and Estate Matters
Our office handles inheritance matters involving Japan and the United States, including situations where a US resident leaves assets in Japan or where heirs reside outside Japan.

Cross-Border Divorce and Property Division
We handle international divorce matters involving Japan, particularly cases involving cross-border financial issues and matrimonial property division.

International Adoption
We assist with international adoption matters involving Japan, including legal procedures and recognition of adoption under Japanese law.

Other International Family Law Matters
We also handle various international family law matters involving Japan, including issues related to jurisdiction and applicable law.

Legal Consultation

Online consultation session is available.　For consultations conducted in English, the fee is ¥11,000 for a 30-minute initial session.

Topics

February, 2026

Attoreny Mizuuchi was interviewed by California attorney Mr. Alphonse Provinziano, esq as part of the Beverly Hills Bar Association(BHBA)’s International Family Law series. They discussed the differences between family law in Japan and California. The interview is scheduled to be released as a podcast later this year.

July 2024

Attorney Mizuuchi contributed an article on Japanese
family law to the July issue of the ABA (American
Bar Association) 's international law section’s
Newsletter.
The title is “Recognition of U.S. custody and visitation orders in Japan”.

May 2024

Attorney Mizuuchi contributed an article on Japanese
family law to the May issue of the ABA(American Bar Association) 's international law section’s Newsletter.
The title is “Japan Improves Enforcement of Hague
Return Orders and has a High Rate of Amicable
Settlement”.

May, 2022

Attorney Mizuuchi made an on-line presentation
regarding Japanese inheritance law in the Milan Bar
Association, Italy.

February, 2022

Attorney Mizuuchwas gave a lecture about
the legal practice under the Hague Child Abduction Convention in the on-line seminar held in the Aichi Bar
Association hosted by the Ministry of Foreign Affairs.

Key Features of the Office

１　Licensed in Japan and California

This website is operated by a Japanese attorney (Bengoshi) who is also licensed as an attorney in California, United States, with experience in legal matters involving both Japan and the United States.

２　Cross-Border Inheritance Involving Japan and the United States

Assistance is provided to foreign heirs, executors, and attorneys dealing with Japanese assets such as bank accounts, real estate, and other property in international estates, including matters connected with the United States and California.

３　Experience with Japanese Assets in Cross-Border Estates

Legal assistance is provided in matters involving Japanese assets in cross-border estates, including situations where heirs, executors, or attorneys are located outside Japan.