John has a wide variety of experience in the insurance coverage field. John is coverage counsel to some of the world’s leading companies in such diverse industries as energy, hospitality, entertainment, telecom/communications, life sciences/pharmaceutical, gaming, manufacturing, and commodities. John routinely counsels and represents his clients in all aspects of their insurance and risk management programs.

John has been lead counsel handling claims under directors and officers policies, fidelity bonds, first-party property and business interruption policies, and other liability insurance products, as well as successfully prosecuting bad faith claims against many of the large insurance organizations.

John has also successfully obtained recoveries for environmental liabilities, toxic tort-related claims and other product liability exposures, and cyber-related losses arising from ransomware attacks and other breaches of private data facilities. In addition, he regularly counsels his clients on insurance-related issues, spanning from structuring insurance programs to reviewing policy wording and related documentation. Over the past decade, John's clients have recovered in excess of $6 billion in insurance coverage for matters that were being contested by their insurance companies.

John's international practice involves appearing in courts and tribunals throughout the United States, Bermuda, Canada, and Europe. As an example, John has been lead US counsel in over twenty-five Bermuda form arbitrations in London, Bermuda, and Toronto. He has also been lead counsel in some of the largest insurance disputes over the last decade involving natural disasters and man-made tragedies like mass shootings. He also serves as a party-nominated arbitrator in many insurance arbitrations in London, New York, and Bermuda.

In a pro bono capacity, John presently serves as the President of the Board of Directors of United Policyholders, a national non-profit organization dedicated to advancing the interests of corporate and consumer policyholders in the legislative, administrative, and legal arenas.

In addition to his active practice on behalf of policyholders, John regularly lectures around the world on insurance coverage topics and has published numerous articles in national journals and periodicals. John has also been rated "AV" by Martindale-Hubbell, the highest rating it offers.