Lon A. Berk



  • McLean
  • New York
  • McLean
  • New York

Lon’s practice focuses on counseling and assisting clients with complex insurance recoveries.

Lon assists clients resolve insurance disputes relating to mass torts, catastrophic events and cyber security issues. He advises clients on liabilities arising out of emerging technologies, including issues concerning internet security, and provides advice regarding insurance covering such exposures. Lon’s experience also includes the trial of cases involving commercial and insurance disputes. He has represented clients in insurance disputes in state and federal, trial and appellate courts nationwide and in international arbitrations.

Lon is admitted to practice before the US Courts of Appeals for the First, Second, Third, Fourth, Fifth, Eighth and Federal Circuits; and the US District Courts for the District of Maryland, District of Massachusetts, the Western District of Virginia, and the Southern District of New York.

Relevant Experience

  • Counseled and represented client regarding mass tort insurance recovery in multi-district litigation involving claims exceeding $100,000,000.
  • Assisted client regarding recovery of insurance proceeds for point of sales systems cyber breach
  • Trial in federal district court and before appraisal panel concerning alleged $100,000,000 business interruption loss arising out of terrorist attack on World Trade Center.
  • Trial in federal district court concerning losses related to satellite explosion and allegations of technology changes. 
  • Trial in state court of multi-million dollar lost profit claim arising out of alleged attorney malpractice.
  • Trial in state court of alleged defamation claim by physician against health care provider. 
  • Appellate: Duane Reade, Inc. v. St. Paul Fire & Marine Ins. Co., 411 F.3d 384 (2d Cir. 2005), further proceedings 466 F. Supp. 2d 560 (S.D.N.Y. 2006). 
  • Appellate: Cement and Concrete Workers Dist. Council Pension Fund v. Ulico Cas. Co., 199 Fed. Appx. 29 (2d Cir. 2006). 
  • Appellate: Burke v. Ulico Cas. Co., 165 Fed. Appx. 125 (2d Cir. 2006). 
  • Appellate: SR International Business Insurance Co., Ltd. v. World Trade Center Properties, LLC, 345 F.3d 154 (2d Cir. 2003). 
  • Appellate: Herbert A. Sullivan, Inc. v. Utica Mut. Ins. Co., 788 N.E.2d 522 (Mass. 2003). 
  • Appellate: Liberty Mut. Ins. Co. v. Metropolitan Life Ins. Co., 260 F.3d 54 (1st Cir. 2001). 
  • Appellate: Reliance Ins. Co. v. Utica Mut. Ins. Co., 5 Appx. 279 (4th Cir. 2001).
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