Mariel L. Belanger
Walsh Pizzi O'Reilly Falanga LLP
Recognized since 2025
Newark, New Jersey
Commercial Litigation
Mariel L. Belanger maintains a diverse civil litigation practice in state and federal court. With respect to commercial litigation, Mariel has assisted clients in a wide array of industries in matters involving contract disputes, unfair competition, and trade secret and employee mobility issues, among others. Mariel also represents employers in employment-related cases both in court and before administrative agencies and has represented management against single- and multi-employee claims involving, among other things, workplace discrimination, harassment, whistleblower retaliation, unequal pay, and wage payment violations.
Mariel also counsels employers on a wide range of personnel issues, including employee discipline and discharge, as well as separation and non-compete agreements, and drafts and provides advice with respect to employee policies and handbooks.
She regularly conducts independent fact-finding investigations for clients faced with a myriad of complaints and potential workplace issues, ranging from sexual harassment and employee misconduct to whistleblower claims involving fraud and corruption. She has also assisted her clients in investigations initiated by state and federal governmental agencies.
Mariel is also experienced in representing institutions of higher education with respect to student, faculty and staff related issues, including investigating Title IX complaints and defending against Title IX claims.
Before entering private practice, Mariel served as a law clerk to the Honorable Katharine S. Hayden, United States District Judge for the District of New Jersey, for the 2011-2012 term. She received her J.D. from Seton Hall University School of Law, magna cum laude, where she was Editor-in-Chief of the Seton Hall Law Review, a member of the Interscholastic Moot Court Board, and a Distinguished Scholar.
- E-mail: mbelanger@walsh.law
- Direct Phone Number: (973) 757-1039
- Phone Number: (973) 757-1100
- Lawyer Page: https://walsh.law/attorney/mariel-l-belanger/
- Three Gateway Center, 15th Floor
100 Mulberry Street
Newark, NJ 07102
- Seton Hall University, J.D., graduated 2009
- New Jersey, New Jersey State Bar Association, 2011
9 The Best Lawyers in America® awards
4 Best Lawyers: Ones to Watch® in America awards
- Commercial Litigation
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