Delmar Siqueira

Zanon de Paula Barros is one of the founding partners of Leite, Tosto e Barros and his work is recognized by various publications. As an example of his participation in relevant cases, he took an active part, at the beginning of the privatization processes, in the telecommunications and electricity tenders. Advised a business group on the transfer of several cable television concessions. He also advised a client on the sale of a very large sugar and alcohol company

Deise Galvan Boessio is a top attorney recognized by Best Lawyers in the practice area(s) of Tax Law. Deise, who practices law in Porto Alegre, Brazil, has been recognized since 2026. This recognition is based on an exhaustive peer-review survey, reflecting the high esteem in which Deise is held by other top lawyers in the same geographic and legal practice area.

Eduardo Amirabile de Melo is a top attorney recognized by Best Lawyers in the practice area(s) of Tax Law. Eduardo Amirabile, who practices law in São Paulo, Brazil, has been recognized since 2024. This recognition is based on an exhaustive peer-review survey, reflecting the high esteem in which Eduardo Amirabile is held by other top lawyers in the same geographic and legal practice area.

Mariana Tavares Antunes holds a bachelor’s degree in law from the Pontifical Catholic University of São Paulo (PUC-SP) and is a member of the São Paulo Lawyers Institute (IASP). She attended the Advanced Mediation Workshop: Mediating Complex Disputes, of the Harvard Negotiation Institute (HNI), in 2017.

Ana Lúcia Pinke Ribeiro de Paiva is a top attorney recognized by Best Lawyers in the practice area(s) of Employee Benefits Law and Litigation. Ana Lúcia, who practices law in São Paulo, Brazil, has been recognized since 2022. This recognition is based on an exhaustive peer-review survey, reflecting the high esteem in which Ana Lúcia is held by other top lawyers in the same geographic and legal practice area.

Jose Roberto Sampaio is a top attorney recognized by Best Lawyers in the practice area(s) of Litigation. Jose Roberto, who practices law in Rio de Janeiro, Brazil, has been recognized since 2026. This recognition is based on an exhaustive peer-review survey, reflecting the high esteem in which Jose Roberto is held by other top lawyers in the same geographic and legal practice area.

Rodrigo Caserta Practice Area Tax law, specializing in litigation and consultancy related to indirect taxation. Professional Affiliations Brazilian Bar Association, Rio de Janeiro and São Paulo state sections and the Brazilian Fiscal Law Association – ABDF. Languages Portuguese and English.

Joyce Roysen is a top attorney recognized by Best Lawyers in the practice area(s) of Corporate Criminal Law. Joyce, who practices law in São Paulo, Brazil, has been recognized since 2019. This recognition is based on an exhaustive peer-review survey, reflecting the high esteem in which Joyce is held by other top lawyers in the same geographic and legal practice area.

Rafael De Alencar Araripe Carneiro is a top attorney recognized by Best Lawyers in the practice area(s) of Administrative Law and Litigation. Rafael, who practices law in Brasília, Brazil, has been recognized since 2024. This recognition is based on an exhaustive peer-review survey, reflecting the high esteem in which Rafael is held by other top lawyers in the same geographic and legal practice area.

Adriana Campos Conrado Zamponi is a partner at Wald, Antunes, Vita e Blattner Advogados, has an LLM in Business Law from Ibmec and has completed mediation courses offered by the France-Brazil Chamber of Commerce (CCFB) in cooperation with the Centre de Médiation et d’Arbitrage Paris (CMAP) and the Brazilian Center for Mediation and Arbitration (CBMA). She is also a member of the Brazilian Arbitration Commission (CBAR).