Karen M. Sullivan
Partner, Dioszeghy Henry Deenihan Ijei
Karen has dedicated her law practice for over 20 years to defending and managing high-stakes litigation in California and the western states, including appearing and arguing in most state and federal courts throughout California. Her litigation defense work in state and federal courts includes class actions, complex products liability, environmental, toxic torts, dietary supplement (MDL), diacetyl, benzene, food-related, Prop 65, and consumer products litigation.
Throughout her career, Karen has successfully managed and represented businesses, including Fortune 500 companies, by obtaining favorable rulings on complex dispositive and discovery motions (including the granting of numerous demurrers, discovery motions, and motions for summary judgment) and securing dismissals through creative defense strategies. She has extensive experience in law and motion practice, including appellate work, and in handling all phases of discovery, having taken the lead in hundreds of depositions. She has established a thorough understanding of complex scientific and medical epidemiology defenses, resulting in much success during mediation and trial.
In her free time, Karen enjoys skiing, playing tennis, running, and fashion.
Litigation in California.
When you need experienced California litigators, look no further than Karen Sullivan and the team at DHDI’s Los Angeles office.
Education
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University of the Pacific—McGorge School of Law
Juris Doctor, Dean's List, Advocacy Concentration 2001
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University of California—Santa Barbara
Bachelor of Arts 1997
Practice Areas
Admissions
- State of California
- State of New Mexico
- U.S. Court of Appeals 10th Circuit
- U.S. Court of Appeals 9th Circuit
- U.S. District Court Southern District of California
- U.S. District Court Central District of California
- U.S. District Court Eastern District of California
- U.S. District Court Northern District of California
Honors
& Awards
- Traynor Honor Society, Advocacy Concentration McGeorge School of Law
- Practice of Law US News & World Report
Memberships
Civic
Activities
- Community Legal Services Volunteer
