Maron Marvel Bradley & Anderson, P.A.
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Contact Information:
1201 N. Market Street, Suite 900
Wilmington, DE 19801
Telephone: (302) 425-5177
Facsimile: (302) 425-0180

Onofrio de Gennaro is a Director in the firm’s Wilmington, Delaware office. He is a part of the firm's national litigation coordination effort and is a member of the regional trial team. He also represents clients directly in the Delaware, New Jersey and New York courts. In these roles, he ensures the execution of clients' strategies nationally, regionally and locally.

Mr. de Gennaro's client services include all aspects of counseling concerning toxic tort, products liability, environmental, and complex litigation, including the coordination of discovery, trial and settlement strategy.  His experience ranges from depositions, motion practice and trial representation to case resolution methods and appeals. His dedication to efficient big picture approaches to resolving cases is an asset to our clients and our firm. In addition to extensive toxic tort experience, prior to joining Maron Marvel Bradley & Anderson, Mr. de Gennaro worked on complex insurance and reinsurance coverage actions, commercial litigation and personal injury defense in state and federal courts. Mr. de Gennaro also served as a law clerk to now retired Judge of the Civil Law Division of the Superior Court for the State of New Jersey, the Honorable E. Benn Micheletti.

Mr. de Gennaro is a Council Member of the Delaware State Bar Association Litigation Section.


In his spare time, Mr. de Gennaro is a father of three children and an Ironman® Triathlete.

Toxic Tort; Products Liability; Environmental Litigation; Complex Commercial Litigation; Insurance Coverage.

Delaware; New Jersey; New York; U.S. District Court for the District of New Jersey.


Seton Hall University School of Law (J.D. 1999); Rutgers University (B.A., Philosophy and Communications, 1996).

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