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Medina Osório
Advogados

Currently, the firm has a highly qualified team of partners to handle complex demands in various areas of law. Trust is one of the fundamental pillars of advocacy and is also the foundation of Medina Osório Advogados. Our team is versatile and dynamic, with extensive specialization and operations throughout the national territory. Our focus is on confidentiality, security, and excellence, providing our clients with exceptional quality service.

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Areas of Expertise

Our principal, partners, and consultants have national and international experience in the areas of practice of Medina Osório Advogados.

Features of Resolutive Advocacy

Resolutive advocacy is a modern approach in legal practice that focuses on finding efficient and effective solutions for clients’ problems, prioritizing conflict resolution in a quick and amicable manner.

Competition Law

Defense and action in economic regulation cases

Family and Succession Law

Consulting and litigation involving family matters

Agribusiness Law

Consulting and litigation in the agricultural sector

Business Law

Consulting and litigation related to business and commercial operations

Tax Law

Tax planning and defense in tax litigation

Social Security Law

Social Security Law is a branch of public law that regulates social security, encompassing the norms and principles that ensure social protection for workers and their dependents.

Sanctioning Administrative Law

Sanctioning Administrative Law can be judicially or administratively applied. It applies to punitive judicial processes or sanctioning administrative proceedings.

Environmental Law

Environmental law is a branch of law that constitutes a set of legal principles and regulations aimed at the legal protection of environmental quality.

Energy Law

Consulting and litigation in the energy sector

Banking Law

Consulting and litigation in banking and financial matters

Consumer Law

Consulting and litigation involving consumer rights

Regulatory Law

A set of rules and principles governing the actions of the state in regulating specific sectors of the economy, such as energy, telecommunications, transportation, among others.

Economic Law

Economic and Competition Law regulates interactions between the State, businesses, and consumers to prevent anticompetitive practices.

Administrative Law

Deals with principles and rules that govern the administrative function and encompasses entities, bodies, agents, and activities performed by Public Administration in the pursuit of public interest.

Corporate Law

A branch of private law that encompasses legal norms aimed at regulating organized economic activity, carried out by individuals or legal entities, habitually directed towards the production and/or circulation of goods and/or services for profit.

Corporate Compliance and Governance

Medina Osório Advogados operates in all stages of structuring, implementing, monitoring, and reviewing compliance and corporate sustainability systems.

Corporate Law and Capital Markets

Corporate Law is the branch of law related to the study of business companies, as well as issues concerning the partners and shareholders of these legal entities and various situations that may occur within them.

Bidding and Contracts

Legal support for clients’ proper participation in public bidding processes, including analysis of public notices, objections, administrative appeals, and legal measures.

Economic Criminal Law

Economic Criminal Law is a specialized branch of Criminal Law that encompasses crimes committed within the scope of economic and business activities.

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Fábio Medina Osório in a Dialogue Round at the XXVI National Congress of the Public Prosecutor’s Office

Check out the content produced especially for the Medina Osório Advogados portal.

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We have a highly qualified team of partners.

Medina Osório Content

Check out Content Highlights, where we present the most relevant and up-to-date information for you.

News

Medina Osório Advogados is an institutional partner of the MDA 2025 Medal.

Fábio Medina Osório

31/10/2025
SANCTIONING ADMINISTRATIVE LAW Advocacy Forum — State of Minas Gerais
25/10/2025
WHAT IS AXIS? A business hub that connects entrepreneurs, leaders, investors, public figures, and leading politicians with a single purpose:
13/10/2025

Events

PUC-Rio is offering a short, entirely online course.

30/10/2025

Articles

Fábio Medina Osório, for Legal500: “Niobium as a Geostrategic Pillar of the 21st Century: Brazil’s Centrality in the New Global Technological and Mineral Order”

Fábio Medina Osório

15/08/2025
Fábio Medina Osório, for Poder360: “Fundamental right to understand public decisions”
01/07/2025
Fábio Medina Osório, for the Migalhas Portal: "The Reasonable Duration of Legal Proceedings and Time as the Invisible Judge: Reflections from Criminal Case 623/DF"
27/06/2025
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Highlights
Medina Osório Advogados

Check out relevant publications that confirm the qualification of our team of partners.

The Legal 500

The Legal 500 Rankings: Brazil > White-Collar Crime And Investigations Tier 5

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Top Lawyers 2023

Constitutional Principles of Sanctioning Administrative Law in the National Financial System

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Top Lawyers 2021-2022

The New Administrative Improbity Law - Fábio Medina Osório

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Top Lawyers 2021-2022

Medina Osório Advogados

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Videos
Our YouTube

Follow the latest videos published on our channel.

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Direito Administrativo Sancionador Hoje: Desafios, Garantias e o Impacto da IA

Fui convidado do podcast “Amperj Convida”! No episódio, conversei com a apresentadora Heloísa Carpena sobre temas centrais ...

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Fábio Medina Osório em Roda de Diálogo do XXVI Congresso Nacional do MP

O CAMINHO MAIS DURADOURO PARA O SUCESSO É A JUSTIÇA Neste vídeo falei com vocês sobre: Roda de Diálogo do ...

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Medina Osório e entrevista sobre julgamento dos atos antidemocráticos

O CAMINHO MAIS DURADOURO PARA O SUCESSO É A JUSTIÇA O que está em jogo quando o Supremo Tribunal Federal ...

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Dia 27 de agosto, OABRJ, fiz a abertura de “O Cenário Contemporâneo da Improbidade Administrativa”

O CAMINHO MAIS DURADOURO PARA O SUCESSO É A JUSTIÇA Neste vídeo falei com vocês sobre: Em minha palestra, ...

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1ª edição do Enastic Controle: debatem desafios e oportunidades da transformação digital

O CAMINHO MAIS DURADOURO PARA O SUCESSO É A JUSTIÇA Neste vídeo falei com vocês sobre: Sobre Medina Osório: ...

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Posse no Instituto dos Advogados Brasileiros - IAB - Fábio Medina Osório

No dia 16 de julho de 2025, tomei posse como membro do Instituto dos Advogados Brasileiros após a indicação de Sidney ...

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Medina Osório: por que Diogo de Figueiredo Moreira Neto compreendeu tão bem a sanção administrativa?

Por que Diogo de Figueiredo Moreira Neto (1933-2017) compreendeu tão bem a sanção administrativa? Confira nas reflexões ...

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Medina Osório: Você sabia que a CGU fiscaliza se escritórios de advocacia possuem compliance?

Você sabia que a Controladoria-Geral da União fiscaliza se escritórios de advocacia possuem compliance? Saiba nas minhas ...

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Fábio Medina Osório: como funcionam as instituições privadas de arbitragem?

Como funcionam as instituições privadas de arbitragem? Confira as reflexões de Fábio Medina Osório, titular Medina Osório ...

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Units
Medina Osório Lawyers

Brasília
  • SHIS QI 17, Conjunto 2, Casa 25, Bairro Lago Sul, Brasília - DF
  • CEP: 71645-020
  • +55 (61) 3797-6080
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Rio de Janeiro
  • R. da Assembléia, 10, Sala 1617, Centro, Rio de Janeiro - RJ
  • CEP: 20011-901
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Porto Alegre
  • Av. Diário de Notícias, 200, Sala 1102, Bairro Cristal, Porto Alegre - RS
  • CEP: 90810-080
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