09 Dec 2025

MAFM Partner Janssen Murayama Joins Editorial Board of Lumen Juris

"Murayama, Affonso Ferreira e Mota Advogados announced that partner Janssen Murayama has been invited to join the editorial board of Editora Lumen Juris. Murayama brings 20 years of experience in litigation and tax consulting and holds advanced degrees in tax law."

Murayama, Affonso Ferreira e Mota Advogados represented partner Janssen Murayama in his invitation to join the editorial board of Editora Lumen Juris, a long-established legal publisher in Brazil. The appointment consists of Murayama taking a seat on Editora Lumen Juris’s editorial board, where he will contribute his expertise to the publisher’s legal works and editorial projects. Janssen Murayama is a tax lawyer with 20 years of experience in litigation and tax consulting. He holds degrees in Law and Accounting from UERJ, a postgraduate degree in Tax Law from IBET (Brazilian Institute of Tax Studies), and a master’s degree in Tax Law from UERJ. He is a full member of the Financial and Tax Law Commission of the Brazilian Bar Association (IAB), founder and director of the Rio de Janeiro Tax Debate Group (GDT-Rio), author and coordinator of books and scientific tax articles, and a guest professor at the FGV Law Program. Murayama, Affonso Ferreira e Mota Advogados represented client Janssen Murayama with a team composed by: Janssen Murayama — partner, tax law.
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