Ms Mariana Tavares Antunes > Wald, Antunes, Vita e Blattner Advogados > Sao Paulo, Brazil > Lawyer Profile

Wald, Antunes, Vita e Blattner Advogados
04543-906 SÃO PAULO

Work Department



Administrative / Infrastructure and concessions.

Commercial / corporate.

Judicial Reorganization and bankruptcy.

Banking and financial.



Managing Partner


Mariana Tavares Antunes started her career at Wald, Antunes, Vita e Blattner Advogados, where she joined in 2000. The recognition of her excellent work led her to the position of managing partner, which she has holds since 2013, and becoming a naming partner in 2016.

Mariana is a highly qualified litigator with experience in domestic and international complex and specialised matters. She cumulates more than twenty years of experience in strategic litigation, arbitration and mediation in various industries such as energy, construction, oil & gas, and telecommunications.

Mariana assists and represents private and public entities in judicial, arbitral and administrative disputes, notably in the infrastructure sector. She has acted in relevant corporate conflicts in the past years involving intellectual property, environmental and competition issues.

Since 2012, Mariana has been regularly featuring in various professional rankings, such as Análise Advocacia magazine (Most Admired Lawyers); LACCA Approved (Best Litigators in Latin America); LACCA Thought Leaders; she also listed in editorial analysis published by specialist publications, such as Chambers Global, Chambers Latin America, Latin Lawyer 250 and The Legal 500.

Collaborator in legal collective publications that deal with procedural and civil law.


Portuguese and English.



Member of the Lawyers Associations’ comission from the Brazilian Bar (OAB).


LLB from Pontifical Catholic University of São Paulo (LLB, 1997).

Advanced Mediation Workshop: Mediating Complex Disputes – Harvard Negotiation Institute (2017).


Lawyer Rankings

Brazil > Dispute Resolution: Arbitration

Wald, Antunes, Vita e Blattner Advogados brings together a team of specialised lawyers who serve as counsel and arbitrators in domestic and international arbitration proceedings, most notably cases in the infrastructure and engineering sectors. The firm is also regularly instructed by clients in court cases related to arbitration, including the execution of arbitral sentences and the enforcement of foreign arbitral awards. Arnoldo Wald stands out for his ‘wide and deep knowledge‘ of dispute resolution. Arnoldo Wald Filho focuses on arbitration and mediation, which are also notable areas of practice for Riccardo Giuliano Figueira Torre. Other key names in the team include Mariana Tavares Antunes and Marina Gaensly Blattner.

Brazil > Dispute Resolution: Litigation

Entirely devoted to dispute resolution, Wald, Antunes, Vita e Blattner Advogados possesses the ‘ability to handle highly complex cases‘ heard before judicial courts and administrative bodies. With strong credentials in prominent superior court proceedings, the team is well versed in advising on civil, commercial, corporate, banking and infrastructure-related lawsuits. Founding partner Arnoldo Wald, Alexandre de Mendonça Wald, who specialises in disputes involving corporate law and concessions, and Arnoldo Wald Filho, who is well regarded for his ‘ability to resolve hurdles and settle disputes‘ in an array of sectors, are some of the main points of contact in the team. Mariana Tavares Antunes ‘stands out for her organisation and execution skills‘. Consumer and competition litigation are among Brasília-based partner Marcus Vinícius Vita Ferreira‘s areas of expertise, while ‘technical lawyerEduardo Cezar Chad and Bernardo Cavalcanti Freire are proficient in bankruptcy and restructuring cases. Riccardo Giuliano Figueira Torre, Adriana Campos Conrado Zamponi in Rio de Janeiro, and the recently promoted Clarissa Marcondes Macéa are also active in litigation.