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The tradition of specialized criminal law practice, combined with technical work of the highest standard.

The Firm

Sartori de Castro Advogados is a law firm that combines the tradition of specialized criminal law practice with technical work of the highest standard, grounded in legal soundness, analytical precision, and an innovative outlook attuned to the constant evolution of Criminal Law and Criminal Procedure.

Guided at all times by ethical, responsible, and discreet conduct, the firm develops sophisticated legal solutions to meet the needs of clients who demand a high degree of technical rigor.

Recognizing the polycontextural nature of contemporary society, we adopt a multidisciplinary methodology that integrates administrative, regulatory, and corporate aspects into our criminal law practice.

Our work is guided by a strategic and integrated vision, focused on preventing and mitigating risks and on handling sensitive situations in an innovative, tailored manner.

Principles

Mission

To practice specialized criminal law at a level of excellence, combining tradition, technical rigor, and multidisciplinary analysis, always in keeping with the highest ethical standards and the needs of our clients.

Vision

To remain a firm permanently and rigorously dedicated to safeguarding fundamental rights, always pairing solid technical work with consistent advancement in the study of Criminal Law, Criminal Procedure, and related fields.

Valores

Legal Soundness
Analytical Precision
Ethics and Responsibility
Innovation with Technical Rigor
Commitment to the Client

Social Responsibility

We believe that the practice of law goes beyond technical defense and entails a lasting commitment to integrity, citizenship, and the strengthening of social and institutional relationships. To that end, Sartori de Castro Advogados partners with GFC Solidário, an initiative dedicated to supporting people in situations of social vulnerability, reaffirming our conviction that the legal profession also plays an important role in promoting human dignity and social inclusion.

Practice Areas

Criminal Law and White-Collar Crime

Our team’s recognized experience enables us to act from the investigation stage through appeals before Brazil’s higher courts, delivering high-caliber work in criminal proceedings, cooperation with public authorities, international legal cooperation, and strategies for managing crises and criminal risks related to banking, corporate, and capital markets transactions.

Compliance and Regulatory Matters

Design and strengthening of compliance programs, criminal risk assessment (KYC, KYE, KYP, and Third-Party Risk), review of internal policies, corporate investigations, and fraud mitigation, contributing to the integrity and legal certainty of organizations.

Digital Law

Specialized counsel on cybercrime, digital fraud, and technology incidents with criminal implications, including internal investigations, technical analysis of digital evidence, preservation of evidence, and preventive measures to reduce vulnerabilities.

Administrative Disciplinary Law

We provide strategic and technical counsel in monitoring and defending administrative inquiries (sindicâncias), preliminary investigations, and administrative disciplinary proceedings involving public servants, as well as preventive work through training, regulatory monitoring, and the strengthening of sound institutional practices.

Transparency

Code of Ethics and Conduct

Compliance Policy

Anti-Corruption and Anti-Bribery Policy

Privacy and Personal Data Protection Policy

Team

Luiz Augusto Sartori de Castro

He holds a law degree and a master’s degree in Criminal Law from the Pontifical Catholic University of São Paulo (PUC-SP), with a research period at the University of Coimbra, Portugal. He also holds postgraduate specializations in Economic and European Criminal Law from the University of Coimbra and in Cyber Law from Escola Paulista de Direito, combining solid academic training in Brazil and abroad.

He is active in bar and professional associations: he chairs the Economic Criminal Law Committee of the Brazilian Bar Association, São Paulo Chapter – Pinheiros Branch (OAB/SP – Pinheiros), and served as Deputy Coordinator of Courses at the Brazilian Institute of Criminal Sciences (IBCCRIM) for the 2021–2022 term.

In academia, he has extensive teaching experience. He was an assistant professor of Criminal Law at PUC-SP from 2008 to 2013 and a guest lecturer in the continuing education programs “Corporate Criminal Law and Criminal Procedure” (COGEAE/PUC-SP) and “Tax Crime Defense Practice” at the São Paulo Bar Association’s Escola Superior da Advocacia (ESA/OAB-SP). He also served as coordinating professor of the “Tax Crimes” course at the Bahia Bar Association’s Escola Superior da Advocacia (ESA/OAB-BA).

He is a co-author of the book “Direito Penal, Processo Penal, Execução Penal e Criminologia nos 30 anos da Constituição Cidadã: novos caminhos e desafios” [Criminal Law, Criminal Procedure, Sentence Enforcement, and Criminology in the 30 Years of the Citizen Constitution: New Paths and Challenges], published by Editora D’Plácido, to which he contributed the chapter “A anomia custa caro, o agir impulsivo também!” [Anomie Comes at a High Price, and So Does Acting on Impulse!]. He is also the author of several articles on Criminal Law and Cyber Law.

His multidisciplinary practice is marked by recognized experience in highly complex cases, internal investigations, the resolution of criminal disputes, including those with an international dimension, and the handling of international legal cooperation, with a technical, strategic, and highly specialized approach.

Rafaela Porto Lopes e Oliveira Sartori de Castro

She holds a law degree from Centro Universitário das Faculdades Metropolitanas Unidas (FMU) and a degree in Psychology from Mackenzie Presbyterian University. She has completed additional training and executive courses in capital markets, corporate governance, legal structuring, and Corporate Real Estate Law, and attended the MBA program in Business Administration at Fundação Getulio Vargas (FGV).

Her career brings together experience at financial institutions, an asset management firm, a family office, and leading law firms, in highly regulated and highly complex environments, with work in Corporate Governance, Risk Management, Compliance, Financial Markets, Capital Markets, investment structuring, and Real Estate Law.

Throughout her career, she has worked on the implementation of integrity programs, internal controls, and institutional policies, as well as on the assessment of regulatory and reputational risks, the conduct of legal and integrity due diligence, and the development of projects related to ESG and the LGPD (Brazil’s General Data Protection Law), always with a focus on strengthening corporate governance and regulatory compliance. Her experience in investment transactions, legal audits, and wealth planning provides a multidisciplinary perspective applied to the design of governance mechanisms, risk management, and strategic advice to companies, investors, and organizations.

She is the managing partner of Sartori de Castro Advogados, where she leads the Corporate Governance and Risk Management practice, coordinating the firm’s strategic and administrative management and contributing to its institutional development.

Leonardo Calegari

He holds a law degree from the University of Southern Santa Catarina (UNISUL) and a postgraduate specialization in Economic Criminal Law from the Brazilian Institute of Criminal Sciences (IBCCRIM), in partnership with the Institute of Economic and European Criminal Law of the University of Coimbra. He is currently pursuing a master’s degree in Economic Criminal Law at Fundação Getulio Vargas (FGV Direito SP), deepening his academic training in economic crime and criminal law protection in the corporate setting.

His career is marked by work at every stage of criminal prosecution, from investigative proceedings, including in the context of police operations, to the conduct of criminal cases. He has experience in matters involving Economic Criminal Law, with a focus on the defense of individuals, companies, and executives, as well as on the analysis of provisional measures against assets, procedural strategy, and appellate work.

During his training, he gained firsthand experience with law enforcement and justice system bodies, having worked at the Federal Prosecution Service (Ministério Público Federal), the Santa Catarina State Judiciary, and the Santa Catarina Civil Police, experiences that contributed to a comprehensive view of investigative and judicial work.

He also served as a teaching assistant in the undergraduate program at FGV Direito SP for the multidisciplinary project “Regulando a Realidade: Deepfakes e Responsabilização Jurídica” [Regulating Reality: Deepfakes and Legal Accountability], devoted to studying the impact of new technologies and artificial intelligence on the law. He is the author of the thesis “Lavagem de dinheiro e a responsabilidade penal dos gatekeepers por omissão imprópria” [Money Laundering and the Criminal Liability of Gatekeepers for Commission by Omission], which received the highest grade and a recommendation for publication.

He is a member of the Brazilian Institute of Criminal Sciences (IBCCRIM) and the São Paulo Lawyers Association (AASP), and regularly takes part in study groups and academic activities focused on contemporary Criminal Law.

Cecília Martini Grafietti

A law student at Mackenzie Presbyterian University, she is pursuing her academic training with a particular interest in Criminal Law and Criminal Procedure.

Since early 2026, she has been a member of the research group “Contemporary Risks and Challenges in Combating Corruption and Organized Crime” at Mackenzie Presbyterian University, where she studies issues relating to organized crime, corruption, and the contemporary challenges of criminal prosecution.

During her undergraduate studies, she gained practical experience in the public sector, having worked at the State Department of Criminal Sentence Enforcement (Deecrim), at the Barra Funda Criminal Courthouse in São Paulo. There, she became familiar with the day-to-day workings of the criminal courts, following cases and proceedings, looking up and updating case information, and learning about the different stages of court work. The experience helped her develop a practical understanding of how the criminal justice system operates, while sharpening her organizational skills, attention to detail, and familiarity with procedural dynamics.

Her academic path also includes research and study on the interface between Law and Psychology; while still in high school, she wrote a final project on the relationship between passion and crime, focusing on the absence of remorse in perpetrators of homicides committed out of passion.

She currently combines practical experience with further academic study, maintaining a particular interest in Criminal Law and Criminal Procedure and in the contemporary challenges relating to organized crime and criminal prosecution.

Monica Wegmann

With technical training in secretarial studies and more than 28 years of professional experience, she built her career at international companies in the airline industry, developing solid experience in operational support, corporate client relations, and the preparation of management reports.

Throughout her career, she has supported teams in different South American countries, tracked results, and implemented processes, combining organizational skills, attention to detail, and an integrated view of each team’s needs.

She is part of Sartori de Castro Advogados as Administrative Assistant, contributing to the organization of internal routines, team support, and client service, with a commitment to quality and care in professional relationships.