Gregory S. Hoffnagle

Of Counsel vCard


  • Pace University (JD)
  • Fordham University (BA)

Bar Admissions

  • Connecticut
  • New York
  • United States District Court for the Eastern District of New York
  • United States District Court for the Southern District of New York

Greg’s practice focuses on complex insurance and reinsurance disputes as well as international commercial arbitration and litigation. He has a breadth of experience representing clients with government regulatory and enforcement actions along with internal investigations.

In addition to his dispute work, Greg provides advice to insureds, insurers, reinsurers, retrocessionaires, mutuals, captives, brokers, TPA’s and MGA’s in compliance, regulatory and transactional matters. Greg regularly counsels insurtech start-ups along with venture capital firms and traditional carriers in creating innovative products and bringing them to market, from choosing an operating structure to licensing and regulatory issues.  Greg represents clients in all lines of insurance, including accident, life and health, property and casualty, and surplus/excess lines.

Prior to joining Mintz Levin, Greg worked in the New York office of a London-based global law firm, where his practice focused on complex international insurance, reinsurance, and commercial disputes with a particular focus on Bermuda Form arbitrations. He also assisted clients in the drafting of policy wording as well as other risk management and corporate governance projects.

While in law school, Greg worked as a judicial intern to Senior District Court Judge John F. Keenan of the Southern District of New York. He was also the managing editor of the Pace International Law Review and of the Review of the Convention on Contracts for the International Sale of Goods (CISG).

Representative Matters

  • Represented a major international retrocessionaire in an AAA arbitration (and related litigations in the US and Brazil) against a state-owned Brazilian reinsurance company in a dispute arising out of a $750 million loss to an iron ore processing plant in Brazil
  • Represented a UK based reinsurer in a $30 million reinsurance arbitration dispute involving rescission of a large workers’ compensation program
  • Represented a Panamanian reinsurer in a $15 million reinsurance arbitration dispute with a US retrocessionaire involving dozens of automatic (proportional and non-proportional) and facultative reinsurance agreements and common account excess of loss reinsurance agreements involving hundreds of contracts that the parties wrote and participated in together over an approximate fifteen year period
  • Represented an international firm served with a subpoena by a foreign government who was seeking discovery pursuant to 28 USC § 1782 in aid of a foreign and international proceeding and related S.D.N.Y. proceedings
  • Represented insurance carrier in high profile litigation matters related to Hurricane Sandy including several RICO actions and a New York State Department of Financial Services investigation
  • Represented an international company in bankruptcy litigation concerning a purported assignment of rights to seek insurance coverage under policies that were assigned by the insured to the liquidating trust
  • Counseled a major telecommunications company in a New York Attorney General investigation and False Claims Act lawsuit arising out of the collection of New York sales tax and related insurance issues
  • Represented a large international commercial bank in a broad investigation by the New York State Department of Financial Services into industry wide mortgage lending and insurance practices as well as in related class actions
  • Obtained a summary judgment ruling in favor of a reinsurer that the cedent's casualty claims were barred on late notice grounds without the need for the reinsurer to prove prejudice
  • Represented several Lloyd's Syndicates in a dispute with their insured, a Mexican energy company, concerning property damage and business interruption losses caused during the expropriation of its hydroelectric power plant in El Gallo, Mexico
  • Represented an international energy mutual in a Bermuda Form arbitration concerning a $350 million claim stemming from catastrophic losses of offshore oil platforms in the North Sea
  • Represented an energy reinsurer in a Bermuda Form arbitration regarding first- and third-party claims totaling $95 million arising out of an oil sand surface release and subsequent issues concerning the depressurization of the reservoir well in Alberta, Canada
  • Represented an insurance company in a Bermuda Form arbitration with respect to a $100 million coverage dispute over MTBE claims, which involved questions of New York law, including misrepresentation/ rescission, prior knowledge, other insurance, and complex issues of allocation
  • Represented a client in a Bermuda Form arbitration regarding voluminous automotive industry products liability claims

Recognitions & Awards

  • New York Super Lawyers Rising Star: Insurance Coverage (2016 - 2017)