Her brief stint in the Office of the Insurance Commissioner was cut short when she became a legal researcher in the Court of First Instance of Rizal (October 1964 - July 1969), thus, starting her long and illustrious career in the judiciary. From being a researcher, she gradually worked her way up in the ladder of judicial hierarchy and, in the process, held various positions such as Attorney Researcher (July 1969 - December 1975), Senior Attorney (January 1976 - October 20, 1976), and eventually Division Clerk of Court of the Court of Appeals (October 21, 1976 - January 17, 1983).