With over a decade of experience in criminal law, we are a boutique law firm specialized in Economic and Corporate Criminal Law, acting ethically, independently, and in close partnership with our clients.
Our team is composed of professionals with strong academic credentials (PhD, Master’s, and specialization degrees) and is supported by consultants in areas such as accounting, engineering, and technology, enabling a multidisciplinary and effective approach.
Our clients include national and international companies and financial institutions, as well as public officials and private individuals.
Headquartered in Porto Alegre, with a branch office in São Paulo, we provide nationwide legal assistance tailored to each client’s reality.
(OAB/RS 93.180 | OAB/SP 473.099)
ruiz@ritterlinhares.com.br
Ruiz Ritter, managing partner of the São Paulo office, holds a PhD, a Master’s degree, and a specialization in Criminal Law from PUC-RS, as well as a specialization in Administrative Law from PUC-MG.
He is the author of books in Criminal Procedure Law, including “Confidential Informants and Due Process of Law” (Marcial Pons, 2025) and “Impartiality in Criminal Proceedings: Reflections Based on the Theory of Cognitive Dissonance” (Tirant lo Blanch, 2019), as well as several scientific articles published in specialized journals.
As a lawyer, he has represented national and international companies, public officials, and C-level executives before courts throughout Brazil, including the Federal Supreme Court and the Superior Court of Justice.
(OAB/RS 97.017 | OAB/SP 493.174)
raul@ritterlinhares.com.br
Raul Linhares, managing partner of the Porto Alegre office, holds a PhD and a Master’s degree in Law from UNISINOS-RS and a specialization in Tax Law from Estácio-RJ.
He is the author of books in Criminal Law, including “Money Laundering” (Marcial Pons, 2025) and “Criminal Law and Functionalism” (Livraria do Advogado, 2017), as well as in Criminal Procedure Law, such as “Plea Bargaining: Practical and Theoretical Lessons” (Marcial Pons, 2021).
In legal practice, he has acted in nationally prominent cases before Brazil’s highest courts, representing public servants, executives of market-leading companies, capitalization companies, and financial institutions.
(OAB/RS 138.032)
joaovitor@ritterlinhares.com.br
João Vitor is a lawyer who graduated from the Pontifical Catholic University of Rio Grande do Sul (PUC-RS) and holds a postgraduate degree in Criminal Law and Criminal Procedure from Verbo Jurídico. He served as a Judicial Clerk to a Trial Judge at the Court of Justice of Rio Grande do Sul in the criminal law area.
(OAB/RS 127.795)
claudia@ritterlinhares.com.br
Cláudia Manuela is a lawyer who graduated from the University of Santa Cruz do Sul (UNISC) and holds a postgraduate degree in Criminal Law and Criminal Procedure from the Higher School Foundation of the Public Prosecutor’s Office (FMP).
(OAB/RS 133.340)
guilherme@ritterlinhares.com.br
Guilherme Formigheri is a lawyer who graduated from the Pontifical Catholic University of Rio Grande do Sul (PUC-RS), holds a postgraduate degree in Criminal Sciences from the same university, and is currently pursuing a Master’s degree in Law at the Federal University of Rio Grande do Sul (UFRGS).
Scientific production is an essential part of our work, reflecting our continuous commitment to research, professional development, and contribution to legal debate in Brazil and abroad.
We provide in-person legal services at our headquarters in Porto Alegre, located at the Trend City Center Office (Av. Ipiranga, No. 40, Suites 1207/1208), and at our branch office in São Paulo, located at Ed. IT Style Office, Rua Leopoldo Couto Magalhães Jr., 1098, sala 95.
In other locations, services are provided remotely/virtually, by appointment.
Ed. IT Style Office, Rua Leopoldo Couto Magalhães Jr., 1098, sala 95
Trend City Center Office Building: Av. Ipiranga, 40, Suites 1207/1208