Our professionals

Our professionals


Paula Vieira

Paula Vieira
+55 11 3147 7756 pvieira@mattosfilho.com.br São Paulo – Paulista

Areas of expertise


Paula’s practice focuses on domestic and cross-border M&A transactions, inbound investments and commercial contracts involving public and private companies from virtually all industries and business sectors. She also advises management and equity owners on corporate regulatory matters. Paula worked as an international associate in the New York office of Simpson Thacher & Bartlett LLP.


Bachelor of Laws – Pontifícia Universidade Católica de São Paulo (PUC-SP);

Specialization in Business Law – Pontifícia Universidade Católica de São Paulo (PUC-SP);

Specialization in Finance and Accounting – Fundação Getulio Vargas (FGV-SP);

Master of Laws (LL.M.) – University of Pennsylvania.


Análise Advocacia 500 – Corporate (2019 – 2020);

Chambers Global – Corporate/M&A (2015 – 2018);

Chambers Latin America – Corporate/M&A (2015 – 2018);

LACCA Approved – Banking & Finance; Capital Markets; Corporate/M&A (2017 – 2021);

Latin Lawyer 250 – Corporate and M&A (2020 – 2021);

The Legal 500 – Corporate/M&A (2013, 2015, 2017 – 2019);

Who’s Who Legal Global – M&A and Governance: Foreign Investment Review (2020).

Mattos Filho in the media

With Paula Vieira

Which law firms were the most popular in 2021?

​The boom of innovative transactions in 2021, such as IPOs and hybrid bond issuances, ensured that leading Latin American companies kept their external advisers on hand as they waded through an increasingly complex raft of legal matters.

Click to read the Latin Lawyer article. Partners:  Paula Vieira e Fernando Dantas M. Neustein.


Grupo Oncoclínicas, especializado en el diagnóstico y tratamiento del cáncer, retiene participación de 50%

​Unimed-Rio Participações e Investimentos, vehículo de inversión de Unimed-Rio Cooperativa de Trabalho Médico do Rio de Janeiro, compró a Oncoclínicas do Brasil Serviços Médicos una participación en el capital social de Centro de Excelência de Radioterapia do Rio de Janeiro. El monto no fue revelado.

Acceda al articulo en Lex Latin.

Areas of expertise

Latin Lawyer

Mattos Filho and Gaia Silva behind cancer treatment partnership in Brazil

​Mattos Filho, Veiga Filho, Marrey Jr e Quiroga Advogados has helped private medical group Oncoclínicas do Brasil sell a minority stake in a radiotherapy subsidiary to healthcare company Unimed.
The buyer, including its subsidiaries, hired Gaia, Silva, Gaede & Associados Advocacia, for the deal, which closed on 31 March. No value was disclosed.

Click here and read more about the deal.

Areas of expertise

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