Ofilio Mayorga's practice focuses on public international law litigation, investment treaty arbitration and international commercial arbitration. He has represented sovereign States and State-owned entities in legal proceedings before the world’s principal dispute resolution bodies, including the International Court of Justice (ICJ), the Permanent Court of Arbitration (PCA) and the International Center for the Settlement of Investment Disputes (ICSID).
He has also represented sovereign clients and private companies in numerous investment and commercial arbitrations conducted under the ICSID, UNCITRAL, and ICC Rules, in disputes involving natural resources, telecommunications, construction, shipping, civil aviation and joint ventures. Among other high-profile disputes, he successfully acted as Counsel for the Oriental Republic of Uruguay in Italba Corporation v. Oriental Republic of Uruguay, ICSID (Case No. ARB/16/9) and the Republic of India in Louis Dreyfus Amateurs SAS v. The Republic of India (PCA Case No. 2014-26), in which Foley Hoag obtained full dismissal of the claims and costs awards. The list of clients he represents includes Nicaragua, Qatar, Uruguay, Peru, Panama, Ecuador and India.
Ofilio publishes and speaks regularly on issues of public international law and international dispute settlement. He has taught public international law at Tufts University and the law of armed conflict at the Harvard Humanitarian Initiative (HHI). In 2008, he interned at the United Nations’ Office of Legal Affairs (OLA).
Dual-qualified in Nicaragua and New York, he holds degrees in public international law, diplomacy, common law and civil law from the Fletcher School of Law and Diplomacy (Medford, Massachusetts), the University of Michigan (Ann Arbor), and American University (Nicaragua).
Before joining Foley Hoag, Ofilio was a Legal Associate in the Program on Humanitarian Policy and Conflict Research at Harvard University (HPCR). In this capacity, he conducted research in international humanitarian law and advised international NGOs on issues related to the protection of civilians in times of armed conflict.
Ofilio also worked in one of the largest law firms in Central America, where he represented individuals and foreign companies in disputes before the Nicaraguan Supreme Court, the Central American Court of Justice, the Inter-American Commission on Human Rights and several Arbitral Institutions in the region.