Celso Caldas Martins Xavier

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Demarest’s Board Member and Partner of Litigation, Arbitration and Corporate Restructuring areas, Celso Caldas Martins Xavier has a Bachelor’s Degree in Law by PUC-SP and a Master’s in Law by Stanford Law School, California. His performance concentrates on complex litigation, focusing on contractual disputes, crimes, cartel disputes, product liability and judicial reorganization. He has broad experience in the areas of banking / investment, construction / engineering, oil & gas, automotive, life sciences, consumer goods and technology. He also worked as an International Lawyer at Fenwick & West LLP, in the United States.

Academic Qualifications

Master of Laws by Stanford Law School, California, USA (2005)

Graduated in Law by Pontifical Catholic University of São Paulo (PUC-SP), São Paulo, Brazil (1999)


Vice-chair of the Lex Mundi’s Latin American Dispute Resolution Committee

Prosecutor of the Superior Tribunal of Sports Justice (STJ-D)

Member of the Council of the Brazilian Bar Association (OAB-SP)

Member of the Chamber of Mediation, Conciliation and Arbitration of the Brazilian Bar Association (OAB-SP)

Member of the Biotechnology Commission of the Brazilian Bar Association (OAB-SP)

— Member of the Arbitration Commission of the Brazilian Bar Association (OAB-SP)

Member of the Steering Committee of the Arbitration Center of the American Chamber of Commerce (AMCHAM)

Member of Lex Mundi’s Product Liability Group

Founding Member of the Turnaround Management Association (TMA) in Brazil

Member of the International Association of Restructuring, Insolvency and Bankruptcy Professionals (INSOL)


Portuguese and English