David Geronemus

David Geronemus, Esq.

JAMS Mediator, Arbitrator and Referee/Special Master

Case Manager
Christiane Catoe
T: 212-607-2780
F: 212-751-4099
620 Eighth Avenue, 34th Floor, New York, New York 10018

David Geronemus is available to conduct cases virtually. JAMS is equipped to provide virtual ADR services on a variety of online platforms, including Zoom, Microsoft Teams, WebEx, and more.


David Geronemus, Esq. is one of the most respected and sought after dispute resolution professionals. He has been a full-time neutral with JAMS since 1994. A former law clerk to Supreme Court Justice Potter Stewart, Mr. Geronemus has taught negotiation and alternative dispute resolution on an adjunct basis at Yale and Columbia Law Schools.

Representative Mediations and Arbitrations

  • A case arising out of the failure of a savings and loan holding company involving claims of securities fraud and breach of fiduciary duty
  • A class action arising out of the failure of a mortgage lender
  • A class action involving claims of securities fraud arising out of a decline in the price of a company that manufactures medical devices
  • A number of matters involving claims arising out of a Chapter 11 proceeding involving derivatives transactions.  These matters have involved contractual, valuation, and bankruptcy issues.
  • A dispute between a pension fund and a broker arising out of the sale of collateralized mortgage obligations; the case contained allegations under the securities laws and ERISA
  • A dispute between the trustee of a securitized portfolio of receivables and a noteholder regarding responsibility for losses on the portfolio
  • A dispute involving a contract between an institution that loaned securities and one that borrowed them relating to distributions on shorted securities
  • A securities class action arising out of disclosures regarding the progress of certain medical trials
  • A securities class action arising out of financial statement disclosures
  • Disputes arising out of the sale and financing of securitized portfolios of automobile leases, involving securities law, contract claims, and insurance coverage issues
  • Numerous disputes arising out of commercial and financial transactions, including arbitration of a multimillion dollar dispute arising out of the sale of a portfolio of mortgage servicing rights
  • Mediation of actions by bankruptcy trustees against directors and officers of failed companies
  • Settlement of a securities fraud case in the telecommunications industry involving claims by a bondholder and a class of stockholders
  • Mediation of a dispute involving claims by a lender that a borrower had falsified its earnings
  • Mediation of a dispute between two public companies both in Chapter 11 proceedings, involving allegations of securities fraud as well as preference claims
  • Arbitration between a law firm and a former partner over retirement plan benefits. At issue was whether the firm could condition benefits on compliance with a non-compete provision in its partnership agreement. The case was reviewed de novo by the Connecticut Supreme Court and Mr. Geronemus’ decision was affirmed.
  • Mediation of a dispute over valuation of a deceased partner’s shares in a law firm; the case had been litigated for over 14 years before being settled in one day of mediation
  • Recognized as Best Lawyers' New York City "Lawyer of the Year" for Mediation, 2022
  • Designated with the highest level ranking (Band 1) in Mediation, Chambers USA America’s Leading Lawyers for Business, 2016-2021
  • Recognized in Who's Who Legal in the practice area of Mediation, 2016-2019
  • Recognized as one of seven most highly regarded individuals in the U.S. of Who’s Who Legal in the practice area of Insurance and Reinsurance, 2015
  • Recognized as a Best Lawyer, ADR Category, Best Lawyers in America, 2007-2022
  • Recognized as a New York Super Lawyer by Law & Politics every year since 2007
  • Registered Mediator, United States Bankruptcy Court for the Southern District of New York

ADR Profiles

  • "David Geronemus," 2018 ADR Champions, The National Law Journal, June, 2018
  • Mediator, JAMS, 1994-present
  • Partner, Donovan, Leisure, Newton & Irvine, Washington, D.C. and New York, 1990-1994
  • Associate and Partner, Rogovin, Huge & Schiller, Washington, D.C., 1984-1989
  • Law Clerk, Supreme Court Justice Potter Stewart, 1983-1984
  • Law Clerk, Chief Judge Collins Seitz, U.S. Court of Appeals, 3rd Circuit, 1982-1983
  • J.D., New York University Law School, 1982 (Senior Articles Editor, N.Y.U. Law Review; N.Y.U. Alumni Association Award; John Norton Pomeroy Prize, the Leonard M. Henkin Prize; Member, Order of the Coif)
  • M.B.A., Columbia University Graduate School of Business, 1980 (Roswell C. McCrea Prize, Beta Gamma Sigma Honor Society)
  • B.A., Wesleyan, 1975




This page is for general information purposes.  JAMS makes no representations or warranties regarding its accuracy or completeness.  Interested persons should conduct their own research regarding information on this website before deciding to use JAMS, including investigation and research of JAMS neutrals. See More

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