Arthur V. Nealon

Arthur V. Nealon, a former state and federal prosecutor, focuses his practice on the litigation of complex commercial, securities and white-collar criminal matters.

Arthur V. Nealon concentrates his practice on the resolution of commercial, securities, employment and white-collar criminal matters. He has represented corporations, partnerships and individuals in federal and state courts and in arbitration proceedings at the AAA, NYSE and NASD/FINRA. A graduate of Columbia College and Columbia Law School, Mr. Nealon served as an Assistant to the United States Special Prosecutor and an Assistant District Attorney for New York County.

He has represented plaintiffs and defendants in securities, accounting and employment litigation, arbitration and mediation proceedings. Mr. Nealon has defended professional malpractice claims against attorneys, physicians and accountants and defended individuals accused of securities and financial crimes in federal and state court.

Concluding in 2020, Mr. Nealon co-led a team that successfully prosecuted derivative and class claims on behalf of investors injured in connection with the fraudulent investment schemes of Bernard L. Madoff and others, and successfully defended settlement of the claims on appeal to the United States Court of Appeals.

In 2008-11, he co-led a team that successfully settled derivative claims on behalf of a liquidated Bear Stearns investment fund. In 2004 – 2009, he co-led a team that successfully prosecuted and settled hundred-million dollar claims arising out to the bankruptcy of Global Crossing, Ltd.

He is a member of the New York City Bar Association’s “Committee on the Judiciary.” The Committee on the Judiciary evaluates candidates for election and appointment to judicial office in the Federal and State Courts in New York City. The Committee has been in existence for over 140 years, and seeks to ensure that candidates meet appropriate standards of professional competence and integrity, and are selected based on merit standard.  He is also a member of the American Bar Association (Section of Litigation), DC Bar Association and the Federal Bar Council.

Mr. Nealon has tried cases to verdict before courts and juries in the United States District Courts for the Southern and Eastern Districts of New York and the Southern District of Illinois and the New York State Supreme Court for New York and Nassau Counties. He has briefed appeals before the United States Courts of Appeals for the Second and Seventh Circuits, the New York Court of Appeals and the Appellate Divisions for the First and Second Judicial Departments.

His clients have included investment firms, attorneys, physicians, accountants and major league baseball players.

Martindale-Hubbell for over 20 years has consistently awarded Mr. Nealon its highest ranking, signifying that his “legal abilities are of the very highest standard.” The American Registry has recognized him as one of “America’s Most Honored Lawyers..

Mr. Nealon resides in Manhattan and East Hampton, New York. His wife, Margaret Price Nealon, a published author, is a member of Community Board 8 in Manhattan and is Co-Chair of the Women and Families Committee.


Professional Associations:

  • American Bar Association
  • Association of the Bar of the City of New York (Committees: Judiciary, currently; State Courts of Superior Jurisdiction, 1990-93; Military Justice and Military Affairs, 1985-88)
  • D.C. Bar Association
  • Federal Bar Council
  • Texas State Bar


  • Columbia University, B.A
  • Columbia University, J.D.
Bar Admissions
  • New York
  • Texas
Court Admissions
  • U.S Supreme Court
  • U.S. Courts of Appeal for the 2nd, 7th and D.C. Courts.
  • U.S. District Courts: S.D.N.Y., E.D.N.Y., C.D. Ill., M.D. Tenn.