Simpson Thacher & Bartlett LLP has a comprehensive focus on substantive and regulatory matters, representing ceding companies and reinsurers in litigations and arbitrations across the United States, the United Kingdom, and Bermuda. Notably, the practice has recently handled cases addressing fraud allegations, sexual abuse claims, and coverage litigation arising from the opioid crisis, alongside impactful work related to Russia-Ukraine, including cyber-attacks, seized aircraft litigation, and environmental contamination. Based in New York, practice head Andrew Frankel brings experience in diverse complex disputes, covering insurance securities, product liability, and commercial litigation investigations. In tandem, Lynn Neuner , based in New York, handles high-stakes cases, leading trial hearings in various forums, including federal and state court, international and domestic arbitrations, and proceedings before the National Advertising Division. Alongside Neuner, Jonathan K. Youngwood, co-head of the litigation practice, specializes in high-profile complex commercial litigations from New York. The team, further supported by Bryce Friedman’s strength representing clients subject to allegations of fraud and False Claims Act violations, and commercial litigation experts Josh Polster and Summer Craig, welcomed new partner Laura Lin and the promotions of Rachel S. Bradley and Alicia N. Washington to partners in 2023.