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Demarest Advogados

Work +55 11 3356 1800
Fax +55 11 3356 1700

Celso Xavier

Work +55 11 3356 1616
Demarest Advogados

Work Department

Debt Restructuring, Corporate Reorganization and BankruptcyLitigation and Arbitration




Celso has 15 years’ experience and specialises in complex disputes, including class actions. He concentrates his practice in arbitration, litigation, product liability and corporate restructuring. He heads the product liability department and is the lead partner for key clients especially in the automotive, aviation and pharmaceutical industries.

He is also Vice-Chair of the Latin American Committee of Dispute Resolution of Lex Mundi; prosecutor at the Sports Superior Court of Justice (STJ-D), the highest Disciplinary Sportive Court; and nominated one of the seven members of the Executive Committee of the Arbitration Center of the American Chamber of Commerce (AMCHAM).




Member of the Commission of Biotechnology and of the Commission of Arbitration of the Brazilian Bar Association (OAB/SP).


Graduated from Pontifícia Universidade Católica de São Paulo Law School in 1999. Earned his LL.M. in Law, Science & Technology from Stanford Law School in 2005.


Bankruptcy and restructuring

Within: Bankruptcy and restructuring

The ‘very responsive’ lawyers at Demarest Advogados illustrate ‘great business acumen’. The restructuring team remains busy, continuing to assist clients in all types of restructuring proceedings and in distressed M&As. In recent work, Celso Xavier acted for Macquarie Bank as creditor in the judicial reorganization of Seara IndĂșstria e ComĂ©rcio de Produtos AgropecuĂĄrios. Guilherme Fontes Bechara, who was promoted to partner in January 2019, receives strong praise for his ‘very practical approach to problems and legal solutions’. Associate Matheus Azevedo Bastos de Oliveira is also recommended. Fabio de Almeida Braga has broad experience in banking, finance and restructuring, and is another key member of the team.

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Dispute resolution (including White-collar crime)

Within: Dispute resolution (including White-collar crime)

Demarest Advogados 'understands the client's needs and acts and thinks like the client's shareholder'. The disputes team is also noted for its 'great leadership' and 'exceptional communication in Portuguese and English'. A recent highlight from Celso Xavier's caseload was his representation of Comgås in a lawsuit seeking a rebalance of its concession agreement; in December 2018, the client was awarded R$500m. Rafael Gagliardi has 'deep technical and legal knowledge'; criminal and compliance expert Fabyola En Rodrigues is an 'exceptional' lawyer; and Carlo Verona is 'very meticulous' and 'gives sound legal and commercially viable advice'. Marcelo Inglez de Souza also recommended.

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