Marie has her law degree from the University of Oslo, specializing in Intellectual Property Rights, International Commercial Law and Legal Theory of Proof. During her studies, Marie was an intern at Leiros & Olsen and at Borgarting Court of Appeal. In addition, she worked as an evening secretary and intern in Schjødt. She was assigned a scholarship from Schjødt and from the Norwegian Association for the Protection of Intellectual Property Rights (NIR) for her master thesis.
"Comment to the Supreme Court's judgement on travel time as working time 4 june", Martin Jetlund and Marie Berggren Hagberg, Juridika, 2018