Leo was a Fellow at the Harvard Kennedy School's Carr Center for Human Rights from 2011 to 2013. He also created the Center's Latin America Program, which he continues to direct as an associate. He is a sociologist from Central University in Venezuela, with an MPhil from University of Sussex, UK, and a PhD from Nanterre Université in Paris. He currently teaches Latin American Politics at UMass-Lowell. He founded and for several years has led Latin Roots, an organization devoted to Latino Culture and Education in Massachusetts. Leonardo has been a fellow and associate researcher at the Weatherhead Center for International Affairs at Harvard University. At Tufts University he taught a course about the Chavez Era in Venezuela. In Venezuela he was Director of Industry in the Development Ministry and founder of several nonprofit organizations. Leo has published two books about Venezuela's political crises and co-edited another about grass roots management. He writes for the media both in the Boston area and in Venezuela.