Maciej Stasiewicz is a graduate of the Faculty of Law at the University of Białystok. He is a legal counsel in the Regional Chamber of Legal Counsels in Warsaw and a licensed restructuring advisor.

He specialises in civil proceedings, bankruptcy and restructuring law. He has experience in crisis management due to insolvency threats and in litigation and negotiations with creditors.

Maciej Stasiewicz has been associated with the Romanowski i Wspólnicy law firm since 2017.

He is a co-author of publications on civil and restructuring law in academic journals and in media outlets such as Dziennik Gazeta Prawna.