Atty. Villareal is a Senior Partner at the Carag Jamora Somera & Villareal Law Offices. She served as the President of the Integrated Bar of the Philippines, Makati Chapter, the Philippine Legal Counsel of the Motion Picture Association International and was a Board Member of the Optical Media Board. Atty. Villareal also served as President of MARLAW in 2010 and Chairman of the Board in 2011.