
Martinelli Advogados
Brazil
Lawyers

Mariel Orsi Gameiro
- Phone55 (11) 2175-4350
- Email[email protected]
- Social
Work Department
ax | Administrative Tax Litigation | Customs Law
Position
Partner
Career
Qualified lawyer with a distinguished career focused on Tax and Customs Law, combining academic, judicial-administrative, and advisory experience. Partner at Martinelli Advogados, with a practice centred on administrative tax litigation, customs disputes, and strategic advisory matters involving complex tax controversies before Brazilian administrative courts and authorities.
Former Sitting Member of the Customs Panel of the Administrative Council of Tax Appeals (CARF), where she acted in the judgment of significant tax and customs disputes. Previously served as Member of the Administrative Council of Tax Appeals of the Municipality of Belo Horizonte/MG (CART) and as Member of the Taxpayers’ Council of the State of Minas Gerais (CCMG).
Professor of Tax and Customs Law in undergraduate, extension, and postgraduate programmes, with active participation in academic and institutional debates concerning Brazilian tax and customs regulation. Serves as Executive Officer of the 21st Century Customs Law Working Group at Fundação Getulio Vargas (NEF/FGV-SP).
Holds a Specialist Degree in Tax Law from Pontifical Catholic University of Campinas, a Master’s Degree in Medicine from São Paulo State University (UNESP/SP), and a PhD in Tax Law from Federal University of Minas Gerais.
Languages
English