Alonso is a law graduate from the Universidad de Lima and has a master’s degree in law from Queen Mary University of London, in its specialized program of international commercial arbitration and investment arbitration.

His professional experience began as an intern at international arbitration firm Wilmer Cutler Pickering Hale & Dorr in London.

“Alonso has extensive experience in national and international arbitration, having participated in defense and counseling in more than 50 arbitrations, administered by various arbitration institutions such as the Lima Chamber of Commerce, the American Chamber of Commerce of Peru, the International Chamber of Commerce (ICC) and the International Center for Settlement of Investment Disputes (ICSID),” the Lima-based firm said in a statement.

Alonso has also acted as arbitrator in several arbitrations regarding public procurement, contractual law and commercial arbitration administered by the Lima Chamber of Commerce, and the Center for Arbitration and Conflict Resolution of the Pontificia Universidad Católica del Perú.

He was recently included as a member of the roster of residual arbitrators in the Singapore International Arbitration Center (SIAC).

In addition to his experience and expertise in arbitration, he has also gained invaluable experience in real estate law, contractual law, public procurement, corporate law, public-private partnerships, M&As, corporate restructuring, extra-contractual civil liability, and private international law.

He alternates his professional practice with teaching, and is a professor of arbitration and corporate law at the Law School of Universidad San Ignacio de Loyola, and a professor of the arbitration course at the Universidad San Martín de Porres.

He has penned numerous publications on investment arbitration and international commercial arbitration in both Peruvian and foreign journals.

“Alonso’s incorporation responds to our strategy to make a difference as a brand, to create a continuity as a firm, not only to our clients but to the legal sector,” the firm’s founder Mario Castillo Freyre said.

“The generation of lawyers that we are incorporating have a great passion for the exercise of law, not only backing up their professionalism with their participation in highly complex cases, but linking it with teaching and the writing of articles and essays on the issues we are engaged with, and which is a distinction of this firm,” he added.

Founded in 1993, Estudio Mario Castillo Freyre Abogados specializes in civil law and commercial arbitration, as well as insurance law, and has a team of six attorneys.