John S. Mairo

Chair, Financial Restructuring & Creditors’ Rights

This attorney has been selected for the recognitions mentioned herein, which have been conferred by the corresponding publications and/or organizations noted. An overview of the award selection methodologies for these recognitions can be found at https://www.gibbonslaw.com/awards. Links to certain specific methodologies are embedded in individual entries. Results may vary depending on your particular facts and legal circumstances. No aspect of this advertisement has been approved by the Supreme Court of New Jersey.

Mr. Mairo focuses his practice on commercial litigation, workouts, financial reorganizations, and creditors’ rights. A respected and particularly well-rounded insolvency lawyer, he has represented an extensive slate of clients that comprises debtors, secured lenders, creditors’ committees, landlords, administrative agents for syndicates of lenders, foreign representatives, and more. Throughout his decades-long career, he has handled mid-size to multibillion-dollar bankruptcy matters on both national and international scales, securing favorable settlements, proposing beneficial recovery plans, and successfully litigating cases that have enabled his clients’ businesses to thrive and prosper. His significant experience has included complex restructuring and antitrust multidistrict litigation.

Mr. Mairo is known by his clients and colleagues alike for his leadership qualities, legal acumen, and strategic thinking, which over the course of his career have yielded impressive results and garnered him numerous recognitions. In particular, he is an INSOL International Fellow and committee member of the INSOL Insolvency Practitioners Group, and one of only three bankruptcy attorneys in the Third Circuit selected for induction this March as a Fellow of the American College of Bankruptcy. Additionally, in 2020, Best Lawyers® featured him as “Lawyer of the Year” for Litigation/Bankruptcy in the Newark area.

Mr. Mairo was most recently with Porzio, Bromberg & Newman, P.C., serving as both Chair of the Commercial Practice Group and Co-Chair of the Bankruptcy and Financial Restructuring Department.

Credentials

Education

Seton Hall University School of Law (J.D.)

  • Managing Editor, Seton Hall Journal of Sport Law
  • Seton Hall Juvenile Justice Clinic

Boston College (B.A., cum laude)

Professional Admissions

State of New Jersey

State of New York

United States Supreme Court

United States District Court, District of New Jersey

United States District Court, Northern District of New York

United States District Court, Southern District of New York

United States District Court, Eastern District of New York

Professional Activities

Member, Lawyers Advisory Committee of the Bankruptcy Court for the District of New Jersey

Mediator, U.S. Bankruptcy Court in New Jersey

Fellow, INSOL International

Committee Member, INSOL Insolvency Practitioners Group

American Board of Certification, Business Bankruptcy Law

Standards Committee for American Board of Certification (Business Bankruptcy), 2009-2011

American Bankruptcy Institute

New Jersey Turnaround Management Association

New Jersey State Bar Association

New York City Bar Association

Judicial Clerkship(s)

Law Clerk, Legal Intern, Honorable Rosemary Gambardella, Bankruptcy Judge for the District of New Jersey, 1994–1995, 1992–1993

Legal Employment

Principal/Commercial Practice Group Chair/Bankruptcy and Financial Restructuring Department Co-Chair, Porzio, Bromberg & Newman, P.C., Morristown, NJ, 2003-2025

Counsel, Associate, Clifford Chance U.S. LLP, New York, New York, 2003, 2000–2003

Associate, Riker Danzig LLP (formerly Riker, Danzig, Scherer, Hyland & Perretti LLP), Morristown, NJ, 1995–2000