Me Sibylle THENAISY holds a Bachelor’s degree in International Relations from Sciences Po Lyon, complemented by an institutional diploma specializing in Latin America and the Caribbean, as well as a Master 1 in International and European Law from Toulouse Capitole University, where she graduated at the top of her class. She then obtained a Master 2 in International Trade and Investment Law from the Catholic University of Lyon, before completing her academic journey with an LL.M. at St. John’s University in New York, giving her a solid command of American law.
A French attorney-at-law admitted to the Lille Bar, she practiced for several years as a legal counsel in São Paulo within a firm specializing in international business law, where she developed sharp expertise in international financing, particularly in the agri-food sector. She joined Grisay Lawyers & Consultants for her final bar school internship and now continues her practice there as an associate.
Her academic and professional background enables her to offer a dual geographical specialization focused on the Americas: on one hand, North America, thanks to her training in New York in US law and Common Law; on the other hand, Latin America, supported by her studies and her years of practice in Brazil.
Within the firm GRISAY, she focuses primarily on international law (including human rights), European law, as well as trade flows and commercial relations between Europe and Brazil. Her areas of practice cover commercial contracts and international investments, including real estate, European Union customs law, the WTO, and French public and administrative law.
Admitted to the Lille Bar (France) and practicing in Brussels, Sibylle works in French, English, Portuguese, and Spanish.