Marc Denis Haefner

Marc Denis Haefner

Walsh Pizzi O'Reilly Falanga LLP • Newark, NJ
Antitrust Trade LawClass ActionsIntellectual Property Litigation

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Contact

Email
Phone
Address
1037 Raymond Blvd, Newark, NJ, 07102, US

Professional

About

Marc D. Haefner represents clients in a wide range of complex commercial and intellectual property litigation. As a commercial litigator, he focuses on civil cases arising under the Racketeer Influenced and Corrupt Organizations Act (RICO), and has both successfully prosecuted and defended such cases. He has also defended numerous class actions brought under New Jersey’s Consumer Fraud Act. His intellectual property work consists mainly of trademark, copyright infringement, and trade secret litigation in federal court. In his 20 years of legal experience, Marc has also taken numerous appellate cases to successful conclusions. His appellate work has run the gamut from First Amendment cases involving religious liberty to issues of first impression on New Jersey’s Construction Lien Law. He has taken cases to appellate courts both when the firm represented the client below and when the case has been taken initially as an appellate matter. Marc earned his J.D., magna cum laude, from Notre Dame Law School, where he worked as the research assistant to Professor G. Robert Blakey, the recognized drafter of the RICO statute, and served as Conflicts Editor for the Journal of Legislation. After graduation, Marc clerked for the Honorable Harold A. Ackerman in the United States District Court for the District of New Jersey. In his previous position at a major New Jersey law firm, he chaired the firm’s Pro-Bono Committee and supervised cases involving prisoners’ rights, protection of landmark buildings, and the appropriate scheduling of marijuana in New Jersey.

About Antitrust Trade Law

Antitrust attorneys handle matters involving competition law, market practices, and trade regulations. They help businesses comply with antitrust laws and defend against claims. Common matters include price fixing, monopoly claims, merger review, trade practices.

Credentials

Education
1994 Notre Dame Law School JD - Juris Doctor 1994 University of Notre Dame JD 1991 University of Dallas BA - Bachelor of Arts

Recognition & Involvement

Publications
2012 Connell Foley, LLP The Complexities Of Civil Rico Prosecution And Defense 2008 Aspatore Book Publication Common Issues in IP Law: Leading Lawyers on Resolving Disputes, Evaluating IP Claims and Achieving Successful Client Outcomes 2008 New Jersey Law Journal One Pitfall in Purchasing a Common-Law Trademark: A Look at the Continuous Use Requirement 2007 New Jersey Law Journal RICO Still an Option for Defrauded Creditors 2004 Metropolitan Corporate Counsel Offers of Judgment in Copyright Cases
Associations
New Jersey State Bar Association Member American Bar Association Member Federal Bar Association (New Jersey chapter) Member Essex County Bar Association Member
Speaking
2014 Continuing Legal Education “Information Technology – Current Litigation Topics/Product Trade Dress,” Continuing Legal Education Program (April 2014)
Updated: Mar 08, 2026