Brett S. Theisen has extensive experience in all aspects of debtor/creditor relations; bankruptcy and insolvency litigation and appeals; general commercial and corporate litigation; and alternative dispute resolution proceedings. He represents plaintiffs and defendants in a broad range of matters in federal and state courts, including Ponzi scheme litigation; complex fraudulent transfer and preference actions; alter ego litigation; shareholder disputes, including fraud, negligence, breach of fiduciary duty and related claims; contract disputes; and contested chapter 11 confirmation proceedings.

Mr. Theisen has represented the trustee for the DBSI Estate Litigation Trust and the DBSI Private Actions Trust in dozens of lawsuits, ranging from avoidance actions to civil RICO actions. Those actions arose out of the DBSI Inc. chapter 11 bankruptcy cases presently pending in the Bankruptcy Court for the District of Delaware, where the firm represented the chapter 11 trustee and also represented the liquidating trustee. Mr. Theisen also represented the Official Committee of Unsecured Creditors in the Trump Entertainment Resorts, Inc. chapter 11 case.

Mr. Theisen also represents clients of all sizes, including hotel groups, municipalities, and publicly-traded entities, on liquor licensing matters and related regulatory issues.


  • Seton Hall University School of Law (J.D., magna cum laude)
    • Associate Articles Editor & Symposium Co-Chair, Seton Hall Sports & Entertainment Law Journal
    • Order of the Coif
  • Dartmouth College (B.A.)

Professional Activities

American Bankruptcy Institute

Turnaround Management Association

American Bar Association

Dartmouth Lawyers Association

New Jersey Brewers Association

The Federalist Society

New York City Bar Association

Professional Admissions

  • State of New York
  • State of New Jersey
  • United States District Court for the Southern District of New York
  • United States District Court for the Eastern District of New York
  • United States District Court for the District of New Jersey
  • United States District Court for the District of Colorado
  • United States Court of Appeals for the Ninth Circuit

Judicial Clerkship(s)

Law clerk to the Honorable Donald H. Steckroth, United States Bankruptcy Judge, District of New Jersey, Newark, NJ, 2010-2011

Publications & Features


Selected to the New York Super Lawyers Rising Stars list, Creditor Debtor Rights

Selected to the New Jersey Super Lawyers Rising Stars list, Bankruptcy: Business

No aspect of this advertisement has been approved by the Supreme Court of New Jersey. A description of the selection process methodology for the awards referenced is available at gibbonslaw.com/awards/.