Sigourney Haylock is an associate in Crowell & Moring’s Los Angeles office and is a member of the firm’s Commercial Litigation and Mass Tort, Product, and Consumer Litigation groups.
Sigourney focuses her practice on complex civil litigation and has represented clients in a patent inventorship dispute, breach of contract actions, healthcare litigation and false advertising litigation. She represents corporate clients, including medical device manufacturers, in products liability litigation. Sigourney also counsels consumer products and food industry clients on alleged Prop 65 violations and threatened litigation.
In 2021, Sigourney was recognized as a “Top 40 under 40” lawyer by The National Black Lawyers, an organization that recognizes lawyers who have a reputation for providing excellent legal representation and who are leaders in their respective practice areas.
Sigourney received her J.D. from Loyola Law School where she served as a Note and Comment Editor for the Loyola of Los Angeles Law Review and as a Certified Law Student for Loyola’s Youth Justice Education Clinic. While in law school, Sigourney worked as a judicial extern for the Honorable André Birotte, Jr. in the United States District Court for the Central District of California. She graduated from the University of California, Santa Barbara where she received a B.A. in environmental studies and a minor in global peace and security.
Affiliations
Admitted to practice: California
Speeches & Presentations
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"Prop 65 Update, Notice of Proposed Rulemaking: Amendments to Short-form Warnings," Retail Industry Leaders Association, Consumer Products Committee Monthly Call
(February 9, 2021).
Presenter: Sigourney R. Haylock.
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