LAWYER PROFILE

Maria Beatriz Grella Vieira

Brazil 2026

Demarest Advogados

Ranked in 2 practice areas

Corporate/M&A

Brazil

2 years ranked

Energy & Natural Resources: Power

Brazil

2 years ranked

About

Provided by Demarest Advogados

Brazil: Industries & Sectors

Practice Areas

Corporate

Energy and Natural Resources

Mergers and Acquisitions

Career

Partner in Demarest's Mergers & Acquisitions and Corporate practice areas, Maria Beatriz Grella Vieira holds a specialist degree in Business from Fundação Getúlio Vargas and a bachelor's degree in Law from Universidade Presbiteriana Mackenzie. She concentrates her practice on M&A transactions, corporate, capital market, and contractual matters, as well as on structuring energy self-production and distributed energy generation projects. Maria Beatriz also advises on corporate reorganizations, corporate governance, estate planning and financial transactions. Her clients include Brazilian and international companies (public and private) from different sectors of the economy - predominantly in the energy sector - shareholders and administrators.

Publications

Coauthor of “Considerações sobre Condenação pela Prática de Insider Trading. In Atualidades em Direito Societário e Mercado de Capitais.

Coauthor of “Reflexões sobre Arbitrabilidade Objetiva e o Voto da Administração Pública na qualidade de Controladora de Sociedade de Economia Mista”.

Education

Fundação Getúlio Vargas

Specialized in Business Management

2010 - 2012

Universidade Presbiteriana Mackenzie

Bachelor of Laws

2002 - 2007

Awards

Legal 500 (Next Generation Partner)

2024

Legal 500

2022

Legal 500

2023

Leaders League

Languages Spoken

Portuguese, English, German and French.

Brazil: Transactional

Practice Areas

Corporate

Energy and Natural Resources

Mergers and Acquisitions

Career

Publications

Coauthor of “Considerações sobre Condenação pela Prática de Insider Trading. In Atualidades em Direito Societário e Mercado de Capitais.

Coauthor of “Reflexões sobre Arbitrabilidade Objetiva e o Voto da Administração Pública na qualidade de Controladora de Sociedade de Economia Mista”.

Chambers Review

Provided by Chambers

Chambers Brazil: Transactional

Corporate/M&A - Brazil

Up and Coming

Individual Editorial

Maria Beatriz Grella Vieira is an up-and-coming lawyer who holds experience in M&A, including contractual and negotiation mandates.

View ranking table

Chambers Brazil: Industries & Sectors

Energy & Natural Resources: Power - Brazil

Up and Coming

Individual Editorial

Maria Beatriz Grella Vieira is frequently seen in the power market dealing with the acquisition and sale of power transmission assets, as well as regulatory work.

Learn more about this team View ranking table

Strengths

Provided by Chambers

Maria Beatriz Grella Vieira is an excellent M&A lawyer with a solid regulatory background.
Corporate/M&AChambers Brazil: Transactional
Maria Vieira is an exemplary professional in the market. She is extremely committed and capable.
Corporate/M&AChambers Brazil: Transactional
Maria Beatriz has extensive knowledge and is highly accessible.
Energy & Natural Resources: PowerChambers Brazil: Industries & Sectors
Maria Beatriz demonstrates strong technical skills and appropriate performance to her seniority level, with a professional attitude and willingness to support the tasks under her responsibility.
Energy & Natural Resources: PowerChambers Brazil: Industries & Sectors
Maria Beatriz Grella Vieira is always thinking about how to make legal matters easier and simpler for the client.
Energy & Natural Resources: PowerChambers Brazil: Industries & Sectors