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Brasília • Rio de Janeiro

Brasília • Rio de Janeiro

Brasília • Rio de Janeiro

Experience that combines legal knowledge with personalized service.

Founded by retired Chief Justice of the Brazilian Supreme Federal Court (STF), Luís Roberto Barroso, former Secretary-General of the STF, Aline Osorio, and attorney Luna van Brussel Barroso, LRB – Barroso & Osorio Advogados is a highly specialized law firm dedicated to delivering tailored and effective legal solutions in complex, high-stakes matters.

LRB brings together outstanding academic credentials, distinguished institutional experience, and a strategic understanding of the law. These attributes enable the firm to provide legal services of the highest technical caliber, offering clear, consistent, and analytically rigorous advice aimed at the swift and effective resolution of legal issues.

Areas of expertise

Areas of expertise

Areas of expertise


Highly specialized legal practice in strategic and highly complex matters.



Highly specialized legal practice in strategic and highly complex matters.


Highly specialized legal action in strategic and high-complexity matters.

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Legal Opinions and Advisory

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Legal Opinions and Advisory

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Alternative Dispute Resolution

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Alternative Dispute Resolution

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Strategic Litigation (judicial and administrative)

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Strategic Litigation (judicial and administrative)

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Arbitration

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Arbitration

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Compliance

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Compliance

See all our specialties

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Publications

The firm maintains an active commitment to legal scholarship, contributing to high-level public debate and the strengthening of institutions.

Article

"DO YOU KNOW WHO YOU'RE TALKING TO?": SOME NOTES ON THE PRINCIPLE OF EQUALITY IN CONTEMPORARY BRAZIL

Luís Roberto Barroso and Aline Osorio

Direito Constitucional

Article

DEMOCRACY, SOCIAL MEDIA AND FREEDOM OF EXPRESSION: HATE, LIES AND THE SEARCH FOR POSSIBLE TRUTH

Luís Roberto Barroso and Luna van Brussel Barroso

Direito Constitucional

Book

FREEDOM OF EXPRESSION AND DEMOCRACY IN THE DIGITAL AGE

Luna van Brussel Barroso

Constitutional Law

Article

"DO YOU KNOW WHO YOU'RE TALKING TO?": SOME NOTES ON THE PRINCIPLE OF EQUALITY IN CONTEMPORARY BRAZIL

Luís Roberto Barroso and Aline Osorio

Direito Constitucional

Article

DEMOCRACY, SOCIAL MEDIA AND FREEDOM OF EXPRESSION: HATE, LIES AND THE SEARCH FOR POSSIBLE TRUTH

Luís Roberto Barroso and Luna van Brussel Barroso

Direito Constitucional

Book

FREEDOM OF EXPRESSION AND DEMOCRACY IN THE DIGITAL AGE

Luna van Brussel Barroso

Constitutional Law

Book

DEMOCRACY, ELECTIONS, AND FEMALE PARTICIPATION

Aline Osorio, Letícia Giovanini Garcia

Electoral Law, Constitutional Law

Finalist of the Jabuti Academic Award

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