Karen Marquez-Casillas

Judge profile

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Karen de Lourdes Márquez-Casillas was appointed as an immigration judge to begin hearing cases in May 2024. Judge Márquez-Casillas earned a Bachelor of Arts in Finance in 1998 from the University of Puerto Rico and a Juris Doctor in 2002 from the University of Puerto Rico School of Law. From 2014 to 2024, she served as an assistant chief counsel with the Office of the Principal Legal Advisor, U.S. Immigration and Customs Enforcement, Department of Homeland Security, in various locations, including El Paso, Texas; Miami, Florida; and Washington D.C. From 2012 to 2014, she practiced immigration law in El Paso at the Law Office of Felipe Millan. From 2010 to 2011, she served as the managing attorney for Márquez & Ferrari Law Offices in San Juan, Puerto Rico. From 2007 to 2009, she directed the legal division of ALO Corporation, representing financial institutions in federal and state civil cases and bankruptcy proceedings. From 2003 to 2006, she practiced civil litigation with the Law Offices of Ramos-Diaz, Acevedo & Gonzalez in San Juan, Puerto Rico. In 2003, she worked as in-house counsel for the legal division of Universal Group, Inc. in Guaynabo, Puerto Rico. Judge Márquez-Casillas is a member of the State Bar of Texas.