Archontia G. Kostoglou was born and raised in Kos, Dodecanese. She is a graduate of the Law School of Democritus University of Thrace. She completed her legal internship at a law firm in Thessaloniki and later registered with the Kos Bar Association. Since 2016, she has been practicing as an active lawyer. She has significant experience in the fields of banking law and enforcement law, successfully handling cases involving objections against seizures and auctions, as well as debt settlement cases with substantial interest write-offs.