John Mark Zeberkiewicz

Practice Areas

Career

John Mark Zeberkiewicz is one of the leading Delaware corporate lawyers of his generation. John Mark focuses his practice on complex transactional matters involving Delaware corporations, including mergers and acquisitions, corporate governance, and corporate finance. He represents corporations, boards of directors, special committees, and executives in a wide range of significant matters. Widely recognized for his extraordinary technical skill and unrelenting energy, John Mark has built a reputation among clients for tackling complex problems with practical, sophisticated solutions. Sources at Chambers USA have stated that John Mark “tirelessly constructs creative solutions to complex business dilemmas,” with clients describing him as “strategically brilliant” and “the smartest person in this space.” “His encyclopedic knowledge of Delaware law coupled with his practical wisdom equip board members and executive leadership to make responsible and bold decisions” (The Legal 500).

A driving force behind some of the most important corporate legislation in years, John Mark is a member of Delaware’s Corporation Law Council and has served on drafting subcommittees responsible for significant amendments to Delaware’s General Corporation Law, including the subcommittee responsible for the adoption of the statutes relating to the ratification of corporate acts, captive insurance for directors and officers, and numerous other provisions of the Delaware General Corporation Law. John Mark is the co-editor of The Delaware Law of Corporations & Business Organizations, a leading treatise on Delaware corporate law; he has published more than 75 articles in the field of corporate governance and mergers and acquisitions; and he is a frequent presenter on developments in Delaware corporate law.

John Mark is a member of the editorial advisory board of Insights. He has served as an expert on Delaware corporate law matters, and was appointed as a special master in a proceeding before the Delaware Court of Chancery.

Professional Memberships

Publications