Ari MacKinnon > Cleary Gottlieb Steen & Hamilton LLP > San Francisco, United States > Lawyer Profile

Cleary Gottlieb Steen & Hamilton’s international arbitration practice draws on ‘an outstanding mixture of seasoned professionals and hard-working staff’, according to sources. Split between New York and Washington DC, the US group additionally plugs into the firm’s extensive global network to represent clients worldwide on commercial and investor-state cases, with a notable emphasis on Latin America. The department is co-led from New York by Ari MacKinnon, who focuses on Latin America-related disputes; he is representing Pluspetrol Resources Corporation in a Spanish-language ICC arbitration initiated by Peruvian state-owned oil company, Perupetro. Department co-chair Jeffrey Rosenthal, also in New York, maintains a broad dispute resolution practice that spans a range of judicial and arbitral matters, with recent activity in post-merger disputes, treaty cases, joint venture disputes and securities issues, among others.

Cleary Gottlieb Steen & Hamilton continues to make considerable progress in Latin America-related international arbitration, building on its immense reputation in the region. It represents a range of multilatinas, along with a number of foreign owned multinationals with local operations. Peru remains an especially active market for the New York international arbitration team, which has a primary focus on Latin America. Cases involving Paraguay, Argentina and Panama reflect the region’s centrality to the practice group, while its track record reflects an emphasis on oil and gas, and mining and natural resources. Post M&A disputes have also been an especially buoyant area. The firm has an extensive record in commercial cases along with further expertise in investor-state disputes, primarily acting for investors, although it does have a strong connection to the Republic of Argentina. Ari MacKinnon is co-head of the international arbitration group and has a fine record in Latin America disputes. Jeffrey Rosenthal is another key partner for Latin America commercial and investor-state arbitration, along with arbitration-related court proceedings. Counsel Boaz Morag and associate Katie Gonzalez are also key team members. All named individuals are based in New York.