She was a special assistant to Secretary of Justice José Fuentes Agostini from 1998 to 2000 and the legal advisor of Governor Luis Fortuño from 2009 to 2012.
Longo Quiñones earned a bachelor's degree in political science and Latin American studies at Brown University.
Longo Quiñones also worked in the United States Department of Justice Civil Division and the office of the Federal public defender.
[2] From 1993 to 1995, Longo Quiñones worked at the Circuit Court of Maryland for Baltimore City as a judicial officer and assistant prosecutor where she specialized in juvenile delinquency.
[2] From November 1998 to October 2000, Longo Quiñones was a special assistant to the Secretary of Justice of Puerto Rico José Fuentes Agostini and Ángel Rotger Sabat where she handled civil rights lawsuits pertaining to the conditions in medical, juvenile, and criminal institutions.