David Blackman


+1 212 257 6953
+1 212 257 6950
Where Advocacy Meets Business

David’s practice focuses on complex international arbitration and litigation matters for clients across a variety of industries, including financial services, insurance, energy, construction, and life sciences. He also has experience representing clients in connection with criminal and regulatory investigations.

David is an active member of the international arbitration community and in international arbitration thought leadership. David served as Secretary to the Task Force of the IBA Arbitration Committee Subcommittee on Rules and Guidelines in connection with the 2020 Revisions to the IBA Rules on the Taking of Evidence in International Arbitration, and is currently Secretary to the Working Group of the Subcommittee in connection with the review and revision of the IBA Guidelines on Conflicts of Interest in International Arbitration. He also writes and speaks on various topics in international arbitration.

David earned his J.D. from Columbia Law School, where he was a James Kent Scholar and served as Executive Editor of the Columbia Journal of Transnational Law as well as President of both the Columbia International Arbitration Association and Columbia Society of International Law. He also holds a B.A., with honors, from Columbia University. Prior to joining Chaffetz Lindsey in 2022, David was an associate at Sullivan & Cromwell LLP in New York.

Representative Matters

  • Represented a renewable energy company in connection with an ICC arbitration seated in Mexico relating to a dispute over the construction and operation of large solar plants.
  • Represented a reinsurer in connection with an ad hoc arbitration seated in Bermuda relating to a dispute over excess of loss coverage.
  • Represented an insurance company in litigation involving coverage for alleged environmental contamination liabilities.
  • Represented a subcontractor in connection with a SIAC arbitration seated in New York relating to suspension and termination of construction projects.
  • Represented amicus curiae, pro bono, before the Supreme Court of the United States in connection with a question of the applicability of the Racketeer Influenced Corrupt Organizations Act to the recognition and enforcement of foreign arbitral awards.
  • Represented a multinational life sciences company in connection with an ICC arbitration seated in Germany relating to a dispute over financial representations in an M&A transaction.*
  • Represented an international financial institution in connection with litigation relating to the sale of residential mortgage-backed securities prior to the 2007-2008 financial crisis.*
  • Represented a global private equity firm in connection with an investigation by state and federal regulators.*
  • Represented an international financial institution in connection with criminal and regulatory investigations in multiple jurisdictions related to an alleged money laundering and corruption scheme.*
  • Represented an individual, pro bono, in a successful criminal appeal relating to the violation of search-and-seizure rights.*

*Experience prior to joining Chaffetz Lindsey LLP.


  • “The 2020 IBA Rules on the Taking of Evidence in International Arbitration: A History and Discussion of the 2020 Revisions” in The GAR Guide to Evidence 20-35 with Joseph E. Neuhaus & Andrew J. Finn (2021).
  • “IBA Rules on the Taking of Evidence in International Arbitration: Key Features of the 2020 Revision” 14(2) N.Y. Disp. Res. L. at 40 with Santiago Rodriguez Senior, Jesús Saracho Aguírre & Alice Williams (Sept. 2021).
  • “A Sociology of Being Pro-Arbitration: A Look at Some Community Rituals Through the Pro-Arbitration Lens” in What Does it Mean to Be ‘Pro-Arbitration’?:  Reflections on George Bermann’s Legacy by Columbia Law School Students and Faculty (2023)
  • “United States Supreme Court Confirms Availability of Civil RICO as International Award Enforcement Tool: Do Recalcitrant Debtors Now Risk Treble Damages Awards in the United States?”, Kluwer Arbitration Blog (30 June 2023)

Speaking Engagements

  • 16th Annual Investment Treaty Arbitration Conference: Panel 3 – The State Enterprise as Investor:  A Special Threat Requiring Special Rules or Not? (14 Oct. 2023)



  • J.D., Columbia Law School, James Kent Scholar, Harlan Fiske Stone Honors
  • B.A., Columbia University, magna cum laude, Phi Beta Kappa


  • New York



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