Photograph of William M. Popalisky


  • University of Denver, B.A. (1974)
  • University of Minnesota Law School, J.D. (1978)


  • New York

William M. Popalisky

 Counsel New York
Phone: +1 212.895.4334
590 Madison Avenue, 20th Floor
New York, NY 10022-2544

William M. Popalisky is an experienced insurance and reinsurance litigator who joined Crowell & Moring's New York office in May 2014 as counsel in the Insurance/ Reinsurance Disputes Group. Prior to joining the firm, he was of counsel at DLA Piper in their Litigation Group. In addition, he was special counsel at Cadwalader, Wickersham & Taft LLP in New York, where he practiced exclusively in the area of insurance/reinsurance dispute resolution. Prior to that, he was a partner at Rosenman & Colin LLP where, among other things, he headed the firm's Y-2K practice. He started his civil litigation career at Miller, Singer, Raives & Brandes, P.C.

For the last 25 years, Bill's practice has been focused almost exclusively on insurance and reinsurance dispute resolution. He has acted as counsel in scores of disputes, including insurance and reinsurance arbitrations and litigations for insurers, reinsurers, and retrocessionaires. His practice encompasses all aspects of the property and casualty and life, accident, and health insurance and reinsurance businesses. His experience includes aggregation and allocation of loss to reinsurance and retrocessional contracts; negotiating, documenting, and collecting inwards commutations from outwards reinsurers (including reserves and IBNR); consolidation of arbitrations; negotiating cut-through agreements, Part VII transfers, redomestication, follow-the-fortunes, and follow-the-settlements; liability for declaratory judgment expenses, pre-hearing security, arbitrator disqualification, and pre-hearing removal; collateral estoppel; insurance/reinsurance broker disputes; insurance/reinsurance captive disputes; non-disclosure and misrepresentation in the placement of reinsurance contracts; reinsurance underwriting; reinsurance custom and practice; workers' compensation carve-out market litigation and arbitration; as well as all aspects of reinsurance arbitration and litigation procedure and practice.

Bill is a member of ARIAS. He is on the education committee of AIRROC. He is a frequent speaker for these organizations as well as the American Conference Institute. In addition to his reinsurance background, he has experience in direct insurance defense and monitoring litigation for a large, multi­disciplinary energy and entertainment corporation. He also spent 10 years as a criminal defense attorney for the Hennepin County Public Defenders' Office in Minneapolis, Minnesota. He is admitted to practice by federal courts in the Southern and Eastern Districts of New York. His appellate admissions include the United States Court of Appeals for the Second Circuit, the Third Circuit, and the Ninth Circuit.

He is also an active pro bono contributor. His recent experience includes working with CLARO, a pro se advice project sponsored by the New York City Bar Association that provides legal assistance to unrepresented debtors sued by their creditors in King's County Civil Court, assisting applicants to the immigration department's deferred action status for illegal immigrants who arrived in the U.S. as children under the DREAM Act, and a successful litigation against a fine artist's former gallery.


Admitted to practice: New York


ARIAS member and regular lecturer
AIRROC member of the Education Committee and regular lecturer

Speeches & Presentations