Sean A. McCormick
Partner
Practices
Bar Admissions
State Bar of California
Previous Employment
Arnold & Porter Kaye Scholer LLP
Education
J.D., University of California, Berkeley, School of Law, Order of the Coif; Senior Supervising Editor, California Law Review
B.A., Gonzaga University, History
B.B.A., Gonzaga University, Business Administration
Sean has a broad civil litigation practice, representing both plaintiffs and defendants in disputes involving real estate, environmental contamination and cleanup, breach of contract, fraud, fiduciary duty, taxation, and unfair competition. He has litigated cases through trial and appeals in state and federal courts, as well as in private arbitration. Sean’s clients range from private individuals to Fortune 500 companies in numerous industries including private equity, retail, hospitality, securities, energy, and entertainment. Before joining the firm, Sean clerked for the Hon. Joseph R. Goodwin of the U.S. District Court, Southern District of West Virginia.
Career Highlights
Prevailed at trial in seven-figure taxation dispute with Internal Revenue Service concerning whether owners of S corporations could deduct losses from waste processing businesses.
Prevailed on motion for summary adjudication and obtained $12+ million judgment on behalf of industrial property owner asserting environmental claims arising from groundwater contamination at adjacent property.
Trial team member in multi-party CERCLA case where firm represented the lead defendant in dispute over $1 billion in remediation costs.
Represented numerous developers and real estate professionals in contract, insurance, and business disputes.
Represented owner of film and television studio in litigation to recover environmental insurance proceeds.
Represented e-vapor product manufacturer in state product liability actions and nationwide federal multidistrict litigation.
Represented pharmaceutical manufacturer in state and federal multidistrict litigation regarding prescription opioid medications.
Represented numerous consumer product and food retailers in California Proposition 65 litigation.
Represented global aerospace manufacturer in soil and groundwater litigation in multiple state and federal courts, and in several investigations and clean-ups in Southern California.
Represented a California county in dispute over disposal of wastewater sewage sludge.