Attorney Seong Ho Lee earned his degree in International Relations from Seoul National University (class of 1985), passed the 37th National Judicial Examination and completed his training at the Judicial Research and Training Institute (27th class). He served as a judge for 27 years from March 2, 1998 to February 24, 2025, handling various types of trials, including first and second instance trials in civil, criminal, family, and administrative cases, as well as motions and auction cases.