Tales Castelo Branco

Mariana is the Managing Partner and Head of Corporate and M&A at Leite, Tosto e Barros Advogados, bringing over two decades of experience in Corporate Law, Mergers & Acquisitions, Governance, Compliance, and Data Protection. As Managing Partner, she leads the firm’s strategic direction and ensures operational excellence across finance, IT, marketing, and administration—combining leadership vision with technical and business precision. As Head of Corporate and M&A, Mari...

Leticia Barbosa e Silva Abdalla is a top attorney recognized by Best Lawyers in the practice area(s) of Arbitration and Mediation. Leticia, who practices law in São Paulo, Brazil, has been recognized since 2026. This recognition is based on an exhaustive peer-review survey, reflecting the high esteem in which Leticia is held by other top lawyers in the same geographic and legal practice area.

Luciana Arduin has over 20 years of experience, with a professional practice focused on labour and employment law. She is highly specialised in defending clients from the banking, civil construction, and telecommunications sectors in complex labour lawsuits, particularly those involving high-level executives. She holds an undergraduate degree in Law from Mackenzie Presbyterian University and a postgraduate degree from the Pontifical Catholic University of São Paulo (PUC-SP). Early in h...

Sylvio Fernando Paes de Barros Jr. is a top attorney recognized by Best Lawyers in the practice area(s) of Arbitration and Mediation and Litigation. Sylvio Fernando, who practices law in São Paulo, Brazil, has been recognized since 2020. This recognition is based on an exhaustive peer-review survey, reflecting the high esteem in which Sylvio Fernando is held by other top lawyers in the same geographic and legal practice area.

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

Priscila Regina is a junior partner at the firm. She specialises in tax litigation and consultation, working closely with Fernando Loeser. Priscila has experience handling direct and indirect taxation matters in all court levels, including administrative and judicial cases. Some of the sectors her clientele comes from are the cosmetics, food and beverage and heavy industry. Priscila has been recognized since 2020 by Best Lawyers Brazil as a benchmark in the field of tax professionals. In addi...

J. Mathias von Bernuth is a top attorney recognized by Best Lawyers in the practice area(s) of Banking and Finance Law, Capital Markets Law, Corporate and M&A Law and Real Estate Law. J. Mathias, who practices law in São Paulo, Brazil, has been recognized since 2015. This recognition is based on an exhaustive peer-review survey, reflecting the high esteem in which J. Mathias is held by other top lawyers in the same geographic and legal practice area.

Specialist in International Tax and Trade with articles published in Brazil and abroad, Ayres Moreira is an Alumnus of the Training Program in Policy and Trade at the Brazilian Embassy in Washington and former Professor of International Tax Law at the Pontifical Catholic University of Minas Gerais (PUC Minas) and at the Getúlio Vargas Foundation (FGV). Ayres Moreira is a frequent speaker in Seminars and Conferences in Brazil and abroad, a full member of the Tax Commission of the Brazil...

Júlio de Oliveira has acted in many significant tax proceedings relating to direct and indirect taxes as well as taxes levied on the payroll, in addition to rendering consulting services to large domestic and international companies. He is part of several committees and associations made up of companies that seek to improve the Brazilian tax system. He holds a Master of Laws and a PhD in tax law from Pontifícia Universidade Católica de São Paulo (PUC/SP). He is a p...

Marina Gaensly Blattner holds a graduate and master’s degree in public law from the Universidade do Estado do Rio de Janeiro (UERJ) and a LL.M from the London School of Economics and Political Sciences (LSE). She was a consultant member of the National Commission for Constitutional Studies of the Federal Council of the OAB. She is also a member of the São Paulo Lawyers Institute (IASP).