As part of her practice, she has experience in cases involving crimes against life and health, public security, economic turnover and money and securities. She supports the firm's team in the field of medical law, which includes malpractice proceedings, as well as legal advice in disciplinary, criminal and civil cases.

Ms Marzec graduated from the Jagiellonian University’s Law School. She defended her master’s thesis entitled: “Criminal and psychological aspects of grooming and the activities of paedophile hunters" at the Jagiellonian University, Criminal Law Department with a very good grade. During her studies, she also became a winner of a competition in financial law.

She also gained professional experience in the law firm Ziobroń Zgiep - Partyka Adwokaci dealing with day-to-day services for commercial law companies.