Osvaldo Sammarco

Specialist in Tax Litigation and Advisory, Fernando Westin has a robust background in leading tax litigation teams for both domestic and multinational companies. As a partner focused of the Tax Litigation team in São Paulo, Westin excels in administrative and judicial tax disputes, due diligence processes, and participation in amnesty and installment programs. Recognized as a Highly Recommended Lawyer by ITR World Tax, Highly Recommended by Chambers Brazil, and a Highlight in Best Lawy...

Sylvio Fernando Paes de Barros Jr. is a lawyer recognized by Best Lawyers in the practice areas of Arbitration and Mediation and Litigation. Sylvio Fernando practices law in São Paulo, Brazil Best Lawyers has recognized Sylvio Fernando Paes de Barros Jr. since 2020. The Best Lawyers recognition is based on a peer-review survey of lawyers in the same geographic region and legal practice area. The recognition reflects the professional regard in which Sylvio Fernando Paes de Barros Jr. is held b...

Luciana Arduin has over 20 years of experience, with a professional practice focused on labour and employment law. She is highly specialised in defending clients from the banking, civil construction, and telecommunications sectors in complex labour lawsuits, particularly those involving high-level executives. She holds an undergraduate degree in Law from Mackenzie Presbyterian University and a postgraduate degree from the Pontifical Catholic University of São Paulo (PUC-SP). Early in h...

Juliano Di Pietro is a lawyer recognized by Best Lawyers in the practice area of Tax Law. Juliano practices law in São Paulo, Brazil Best Lawyers has recognized Juliano Di Pietro since 2024. The Best Lawyers recognition is based on a peer-review survey of lawyers in the same geographic region and legal practice area. The recognition reflects the professional regard in which Juliano Di Pietro is held by other lawyers.

Prof. Dr. Marcelo von Adamek is the founding partner of Advocacia von Adamek, bringing to his firm more than 25 years of legal expertise across a diverse range of practice areas, including Corporate Law & Capital Markets, Business Contracts, Private Insurance, Mergers & Acquisitions, Restructuring & Bankruptcy, and Civil & Business Litigation. His comprehensive services include strategic consulting, litigation, and delivering legal opinions. Prof. Dr. von Adamek’s distin...

Zilma Aparecida S. Ribeiro, is responsible for the labour department of the firm, both in the litigation and in the advisory areas. She graduated in law from the Law School of the University of São Paulo from which she holds a Masters Degree. Ms. Ribeiro has over 30 years of experience working as a lawyer, both in-house and as a legal consultant. Ms. Ribeiro also completed a Specialization Course in Civil Procedure at the Law School of the University of São Paulo. She has been r...

Alessandra Mara Cornazzani Sales is a lawyer recognized by Best Lawyers in the practice area of Administrative Law. Alessandra Mara Cornazzani practices law in São Paulo, Brazil Best Lawyers has recognized Alessandra Mara Cornazzani Sales since 2026. The Best Lawyers recognition is based on a peer-review survey of lawyers in the same geographic region and legal practice area. The recognition reflects the professional regard in which Alessandra Mara Cornazzani Sales is held by other lawyers.

Ms. Renata Araujo has over 25 years of experience, with her career consistently focused on Labor Law. She leads the defense in labor litigation for major national and multinational companies across the energy, infrastructure, civil construction, aviation, textile, food, and paper and pulp sectors, among others. Ms. Araujo conducts strategic and preventive approaches for clients. She possesses vast expertise in monitoring corporate restructurings and judicial reorganizations, acting in the res...

Fernando is a junior partner at the firm. He has more than eight years of experience in Tax Consultancy and Litigation acting in the administrative and judicial levels involving the most diverse matters of Tax Law and clients. Fernando has also supported tax and legal opinions and risk assessments to national and international clients. Fernando is a rising professional, increasingly recognized by clients for the advice provided. The recent accolade he received attests to this, as he was highl...

Tania Mara Ferreira is a lawyer recognized by Best Lawyers in the practice area of Corporate and M&A Law. Tania Mara practices law in São Paulo, Brazil Best Lawyers has recognized Tania Mara Ferreira since 2020. The Best Lawyers recognition is based on a peer-review survey of lawyers in the same geographic region and legal practice area. The recognition reflects the professional regard in which Tania Mara Ferreira is held by other lawyers.