J.C. Ditzler

Chair, London Market

J.C. Ditzler concentrates his practice in international insurance, and acts on a wide variety of matters worldwide. 

J.C. is fortunate to have worked directly with leading Lloyd's and Company Market claims and underwriting personnel during an extended work placement/secondment during his career. This work included assisting in the drafting of various specialty lines wordings, risk assessment, claim analysis, and complex litigation management across virtually all classes of insurance currently being written in the London insurance market. He later spent more than six years living and working in London, further enhancing his related skill sets. J.C. enjoys panel counsel designation with a large number of London-based insurers, regularly acting in high-profile coverage, defense, subrogation and monitoring roles across a variety of jurisdictions.

J.C. received his Bachelor of Arts from the University of Washington in 1986 (honors program transfer from Washington State University). He earned his law degree at the Seattle University School of Law in 1989. In addition to his multiple U.S. bar admissions, he is also an English solicitor, duly admitted to practice in England and Wales.


Best Lawyers Honors More Than 200 Cozen O'Connor Attorneys to its Best Lawyers in America 2024 Edition

August 17, 2023

Best Lawyers selected 232 Cozen O’Connor lawyers from 24 of the firm’s U.S. offices for inclusion in the 2024 edition of The Best Lawyers in America.


To Avoid Bad Faith in Washington State, Insurers Must Provide a Defense if any Court Articulates an "Arguable Legal Interpretation" that a Claim is "Conceivably Covered" [Insurance Coverage Alert!]

March 23, 2010

To Avoid Bad Faith in Washington State, Insurers Must Provide a Defense if any Court Articulates an "Arguable Legal Interpretation" that a Claim is "Conceivably Covered" - Insurance Coverage Alert! - On March 18, 2010, the Washington State Supreme Court decided American Best Food, Inc. v. Alea London, Ltd.,1 --- P.3d ----, 2010 WL 963933 (Wash., Mar. 18, 2010), holding that (1) a complaint alleging injuries caused by an assault, and conduct by the insured following the assault, triggers a duty to defend, despite the policy’s exclusion for claims “arising out of assault and/or battery,” and regardless of whether the post-assault conduct is alleged to have resulted

Winter 2009 [Insurance Coverage Observer]

January 29, 2009

In this issue, we identify key coverage developments from the year 2008. We summarize recent court decisions dealing with coverage for toxic torts, environmental losses, construction defect and property losses. We also address new decisions in the areas of insolvency and reinsurance.

Summer 2008 [Insurance Coverage Observer]

August 30, 2008

We take pride at Cozen O’Connor in addressing new developments that will affect our clients. In this issue, we include a special report on two new decisions from New Jersey on bad faith in the UM/UIM context.

Insurance Coverage Observer [Winter 2008]

February 26, 2008

In this issue, we consider a number of emerging issues and also identify key developments in coverage in 2007. We summarize new court decisions dealing with toxic torts, environmental coverage, insolvency and regulatory issues, and construction defect. We feature a key construction defect coverage case in Illinois with important implications. We address global warming in the context of directors with officers liability coverage. Finally, we discuss the emerging areas of fax blast and food contamination, and the impact of the reauthorization of TRIA.

Events & Seminars

Past Events

The Avoidance of Bad Faith Claims

March 14, 2012 - London, England

Industry Sectors


  • Seattle University School of Law, J.D., 1989
  • University of Washington, B.A., 1986

Awards & Honors

Best Lawyers in America (Insurance Law) 2024

  • England and Wales
  • Oregon
  • Washington
  • Oregon Supreme Court
  • Tribal Courts of the Yakima Indian Nation
  • U.S. Court of Appeals for the Ninth Circuit
  • U.S. District Court -- Eastern District of Washington
  • U.S. District Court -- Western District of Washington
  • U.S. Supreme Court
  • Washington Supreme Court
  • American Bar Association
  • King County Bar Association
  • Law Society of England and Wales
  • Oregon State Bar Association
  • Washington Bar Association