Latin America & Caribbean Staff

Washington, DC

Nerea Aparicio, Director, Latin America and Caribbean Division, joined ABA ROLI in August 2016. Ms. Aparicio brings more than 20 years of experience, and considerable expertise, in advancing the rule of law and human rights especially in the LAC region. Prior to joining ABA ROLI, Ms. Aparicio served as Principal Specialist at the O.A.S. Inter-American Commission on Human Rights where she was responsible for developing and advancing the Commission´s efforts in the region, including case system; support for public hearings; monitoring conditions affecting human rights including access to justice; and, direct engagement with civil society organizations and governments in countries throughout the region.

Previously, Ms. Aparicio worked as a staff member of the United Nations, including as part of the UN Mission for the Verification of the Peace Agreements in Guatemala (MINUGUA), and subsequently on behalf of the UNHCHR in Colombia where she worked to strengthen the capacity of the national Ombudsman’s Office. Ms. Aparicio has also served as consultant on rule of law efforts funded by various donors including USAID, the U.S. Department of State, and the official donor agencies of Spain (AECID) and Sweden (SIDA). At the outset of her career, Ms. Aparicio worked for the Geneva-based UN Center for Human Rights and the UN Working Group on Indigenous Populations.

Ms. Aparicio earned her law degree from the University of Deusto’s School of Law and is member of the Madrid Bar. Ms. Aparicio also holds a Master’s in International Legal Studies 01from American University’s Washington College of Law. Ms. Aparicio has taught and lectured at a number of universities in Latin American and in the US, on subject matters involving conflict resolution, international and regional systems for the protection of human rights, as well as on Indigenous Peoples rights. She is dual citizen of Spain and the United States.

Greg Taylor, Program Officer, has worked at ABA ROLi since June 2015. Taylor spent his first two years at ABA ROLi in the International Support department working primarily on new staff recruitment, and then he went on to work for the ABA ROLi Middle East and North Africa Division for a year and a half before joining the LAC Division in November 2018. Prior to working at ABA ROLi, Taylor served as a Peace Corps Volunteer in El Salvador from 2013 to 2015, where he worked on grassroots youth and community development projects. He is fluent in Spanish and received a B.A. in Political Science from the University of Arizona, and he is currently an evening J.D. student at American University Washington College of Law. 

Hillary Voth, Program Officer, joined ABA ROLI in August 2017. Prior to coming to ABA ROLI, Voth spent six years in Bolivia, where she worked for a nongovernmental organization conducting business development and supporting project implementation. Voth holds an M.A. in Latin American studies from Vanderbilt University and a B.A. in Latin American studies and Spanish from Washington University in St. Louis. She speaks fluent Spanish and is proficient in Portuguese.

Central America

Tania Montoya de Amaya, Country Director, El Salvador, joined ABA ROLI in November 2011. She is a lawyer from El Salvador and served for several years as head of the Division of Tax Crimes against the State at the Attorney General’s Office of the Republic of El Salvador. She has also worked as a consultant for the United States Agency for International Development (USAID) and the United Nations Development Program in El Salvador, Guatemala and Paraguay. More recently, she served as deputy director for a USAID justice sector program in El Salvador. Montoya has written books and articles about processing crime scenes, chain of custody and evidence in criminal proceedings, and has trained judges, prosecutors, defense attorneys and police investigators on these issues.  


Sabine Boucher, Country Director, Haiti, joined ABA ROLI in 2011 serving as a senior program officer for ABA ROLI’s programs in Haiti. Boucher’s 20 year career in the area of the Haitian judicial reform is both diverse and extensive. Her experience features a unique combination of technical knowledge of the Haitian justice sector and familiarity with U.S.- funded programs. Prior to joining ABA ROLI, she worked as a national coordinator for Transparency International. In 2010, she worked as a judicial trainer for the Organisation Internationale de la Francophonie and a legal consultant for the U.S. Agency for International Development. In addition to her technical work, Boucher is a known expert in the Haitian academia. She holds a J.D. from the Faculté de Droits et des Sciences Économiques and a M.P.A. and a B.A. in administrative sciences from the Centre d’Études Supérieures et de Formation. 


Juan Manuel Olvera Méndez, Acting Country Director, Mexico, joined ABA ROLI in January 2014. Olvera holds a Master of Laws in Advocacy (LLM) from Southwestern Law School in Los Angeles a Law degree from the University of Guanajuato in Mexico. Olvera pioneered the curricula for oral litigation techniques and alternative dispute resolution at the University of Guanajuato. He has also served as the academic advisor for first-place teams at state, regional, and national level university mock trial competitions. In addition to academia, Olvera has been a legal consultant for legal institutions and law schools in Mexico. He has also served as a trainer in oral litigation techniques and family and commercial hearings for judges of the federal judicial branch of Mexico. He is a trainer certified by the Coordinating Council for the Implementation of Mexico’s Criminal Justice System (SETEC). Olvera also has certifications in Oral Litigation Techniques and Instructional Training from the U.S. National Institute for Trial Advocacy (NITA).



Raúl Callirgos Velarde, Country Director, Peru, joined ABA ROLI in July 2012. He has served as an international consultant on judicial reform for the World Bank and the United Nations Development Program. In Peru, he has held a number of positions in the public sector, including serving as a secretary general of the Judicial Coordination Council, as a national director of justice and national director of legal issues at the Ministry of Justice, and as a primary consultant for the National Congress of Peru, where he participated in the commissions on justice and human rights, women’s rights, constitutional law and budget. He has also served as academic director and general director for the Academy of the Magistracy, as chief of the Cabinet of Consultants for the presidency of the Superior Court of Justice in Lima and as general director of the Public Defender’s Office at the Ministry of Justice and Human Rights.