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David Sean Cox

Partner

David Sean Cox represents corporate policyholders in the preservation, protection, and recovery of insurance assets. He has represented Fortune 500 companies in a variety of complex insurance recovery matters, including coverage disputes involving toxic torts and environmental property damage. David has also assisted clients in drafting specialty market insurance policies, particularly in connection with future environmental and toxic tort exposures. He has written and spoken on insurance coverage–related issues in a variety of forums.

David also maintains an active pro bono practice. He was part of a team of Morgan Lewis attorneys that partnered with public interest law firms to obtain a settlement with Los Angeles County in Guillory, et al. v. County of Los Angeles, a class action suit that has led to major reforms to the county’s General Relief program, a key program supporting those in extreme need. In covering the significant reforms, the Los Angeles Times wrote that “the county is modernizing how it lets homeless people, who make up 60 percent of the roughly 100,000 people on general relief, know about regulations, deadlines, and penalties.” 
  • Princeton University, 1990, B.A.
  • University of California, Los Angeles School of Law, 1995, J.D.
  • California

Band 1, Insurance: Policyholder, California, Chambers USA (2025)

Ranked, Insurance: Policyholder, Nationwide, Chambers USA (2025)

Ranked, Insurance: Policyholder, California, Chambers USA (2022–2024)

Up and Coming, Insurance: Policyholder, California, Chambers USA (2021)

Listed, The Best Lawyers in America, Insurance Law, Los Angeles (2020–2025)

Recommended, Dispute resolution: Product liability, mass tort and class action - defense: toxic tort, The Legal 500 US (2020)

Recommended, Insurance: advice to policyholders, The Legal 500 US (2017–2019, 2021, 2025)

Recommended, Dispute resolution: Product liability, mass tort and class action – pharmaceuticals and medical devices – defense and toxic tort – defense, The Legal 500 US (2017)

Member, Practice Group of the Year, Insurance, Law360 (2020)