Next Generation Partners: Bengoshi

Private wealth: Independent local firms in Japan

Mori Hamada & Matsumoto Tokyo Office

Mori Hamada & Matsumoto Tokyo Office is considered ‘unique in the field of private wealth in Japan’, bringing together deep tax knowledge and solid background in dispute litigation. The team is co-led by Atsushi Oishi, Makato Sakai, and Koyo Madakoro, who bring a wealth of experience in private wealth management, specialising in corporate and tax planning. Other key names to note include Hiroshi Oyama, who focuses on tax planning and disputes, and Yuko Maruyama, who is recognised for her strong track record as a tax advisor and her expertise in inheritance, business succession, and organizational restructuring.

Responsables de la pratique:

Atsushi Oishi; Makoto Sakai; Koyo Madokoro


Autres avocats clés:

Hiroshi Oyama; Yuko Maruyama; Yoshihiko Abe


Les références

‘The firm has established the earliest wealth management practice among the top firms, providing legal and tax services to individuals and families in Japan. This integrated approach is well-received by business families, appreciating the team’s combined legal and tax expertise.’

‘Mori Hamada & Matsumoto has a unique offering in the field of private wealth that is not seen in other law firms in Japan. They have specialized expertise and strengths not only in legal matters, but also in taxation and trusts.’

Principaux dossiers


Nagashima Ohno & Tsunematsu

The team at Nagashima Ohno & Tsunematsu has ‘knowledge in various fields of private wealth’, with a strong focus on structured finance and trust matters. Leveraging its strong reputation in the tax market, the team is well-positioned to provide high-net-worth individuals with comprehensive advice from both legal and tax perspectives. Along with Masayuki Fukuda , who is recognised for his specialisation in trust and inheritance matters, the team is also led by Yushi Hegawa, who has extensive experience in dealing with cross border wealth management, and Shigeki Minami, who brings extensive tax and M&A knowledge. Another key member is Yoshikazu Hasegawa, recognised for his expertise in M&A and private wealth practices both domestically and internationally.

Autres avocats clés:

Masayuki Fukuda; Yushi Hegawa; Shigeki Minami; Yoshikazu Hasegawa


Les références

‘Nagashima Ohno leads in terms of Japanese foreign law practices based in Singapore.’

‘Mr. Yoshikazu Hasegawa represent top-tier Japanese clients who relocated across Southeast Asia. He is a very strong lawyer and possesses excellent technical skills. His professionalism sets him significantly ahead of his competitors.’

‘Japanese firms with a private wealth practice are rare. Nagashima Ohno & Tsunematsu are responsive and responsible.’

Principaux dossiers


Nishimura & Asahi

The private wealth practice at Nishimura & Asahi is adept at meeting the varied needs of clients in areas such as family disputes, cross-border inheritance, and tax. The team is co-led by Yoshinobu Fujimoto, who brings considerable expertise in business succession planning and international tax, and Masaru Shibahara, who specialises in business succession and dispute resolution. Katsuyuki Yamaguchi possesses strong cross-border capabilities, particularly in assisting individuals living outside Japan with wealth interests in the country, and Kohei Matano, who specialises in a broad spectrum of business succession and disputes.

Responsables de la pratique:

Yoshinobu Fujimoto, Masaru Shibahara


Autres avocats clés:

Katsuyuki Yamaguchi; Kohei Matano


Principaux dossiers


Anderson Mori & Tomotsune

Anderson Mori & Tomotsune combines extensive knowledge and experience across various corporate fields and cross-border transactions, offering integrated legal and tax advice to clients in Japan and internationally. The team specialises in business and asset acquisition and management, asset investment, and the succession of businesses and assets. The team is co-led by Yutaka Shimoo, who advises on the intersection of legal and tax matters, including global incentives and capital policies; and Taku Matsumoto, who brings extensive experience in corporate and M&A transactions.

Responsables de la pratique:

Yutaka Shimoo, Taku Matsumoto


Principaux clients

Sumitomo Mitsui Trust Bank, Limited


DHOWA TECHNOS Co., Ltd.


Principaux dossiers


  • Advised Sumitomo Mitsui Trust Bank, Limited (“SMTB”) as lead counsel of SMTB’s wealth management department and received requests for private wealth matters (those for both SMTB and its clients) in Japan and abroad.
  • Advised DHOWA TECHNOS Co., Ltd. on establishing a holding company to organize the group companies’ capital relationships in order to improve the efficiency of the business and operations as well as to facilitate business succession.

City-Yuwa Partners

The private wealth team at City-Yuwa Partners is renowned for assisting clients with business succession planning, business restructuring, asset management, and trust formation, as well as addressing inheritance matters. The team is co-led by Shigeaki Itoh and Hitomi Sakai, who collaborate closely with tax accountants and financial institutions to manage a range of wealth management and estate planning matters. Shotaro Aoki specialises in domestic and international estate planning, inheritance disputes, and business succession.

Responsables de la pratique:

Shigeaki Itoh, Hitomi Sakai


Autres avocats clés:

Shotaro Aoki


Les références

‘What makes City-Yuwa unique is that they have a connection with most countries, which was helpful when we needed advisory services covering multiple jurisdictions.’ 

‘City-Yuwa has global network and knowledge of both Japanese and global laws. Hitomi Sakai, in particular, offers comprehensive guidance to her clients.’ 

‘The team exhibited excellent communication skills, efficiently sharing information among members without requiring repeated explanations, even as tasks were distributed across different individuals. Each team member demonstrated thoughtful consideration and genuine compassion towards the case, showing a deep level of engagement and understanding. Additionally, the team’s flexibility in handling various aspects of the case was commendable. Their cohesive and empathetic approach made a significant positive impact for me.’

Principaux dossiers


  • Advised on Japanese tax treatment of the client’s family’s estate planning, involving entities in Japan, Singapore, and Australia.
  • Advised clients living in Japan with estate planning at the request of their family office based in Switzerland.