Xavier Rubio is an Associate at Osorio Internacional. He is a Florida and Ecuadorian attorney trained in both the Common Law System (JD and LLM in the United States) and the Civil Law System (Law Degree in Ecuador).

Xavier advises businesses, individuals, and state entities in legal, regulatory, and procedural aspects of cross-border disputes and business transactions. His practice focuses on international investment law, commercial arbitration, and multi-jurisdictional litigation.

Xavier has acted as counsel in international arbitrations administered by the Permanent Court of Arbitration (PCA), the International Chamber of Commerce (ICC), the International Centre for the Settlement of Investment Disputes (ICSID), and under the UNCITRAL Arbitration Rules. He regularly handles controversies related to oil and gas, infrastructure, electricity, renewable energy, and public procurement, with emphasis on projects and transactions conducted in Latin America.

Before joining Osorio Internacional, Xavier served as International Arbitration and Litigation Attorney at the Attorney General’s Office of Ecuador. He represented the Republic of Ecuador in disputes governed by bilateral investment treaties, financing agreements, construction contracts (EPC/FIDIC), and free trade zone concessions. Xavier provided advice during the negotiation of investment agreements, the development of Ecuador’s model investment treaty, and the negotiation of settlement agreements that prevented further international claims against Ecuador.

Between 2015 and 2019, Xavier represented a state company against a Chinese contractor in 15 ICC Dispute Board proceedings during the development of a 1500 MW hydroelectric power plant, in Ecuador’s first experience implementing Dispute Board mechanisms in public contracts.

Xavier has collaborated with international law firms in court proceedings in the United States, the Netherlands, Spain, and Panama, among other jurisdictions. He enjoys interacting with experts and witnesses in multi-disciplinary teams and participating in strategic decision-making with clients, colleagues, and multiple stakeholders.

Xavier received his Juris Doctor degree from the University of Kansas School of Law and is admitted to The Florida Bar. He holds an LL.M. from the University of Texas School of Law, with a Concentration in Global Energy, International Arbitration, and Environmental Law. He received his Ecuadorian Law Degree (Abogado) from Universidad de las Américas in Quito. Xavier practices in English and Spanish.