Umberg/Zipser LLP is a premier business litigation and intellectual property boutique law firm. Drawing on decades of experience in some of the nation’s largest and most prestigious law firms, as well as national and state government service, our lawyers provide exceptional work with the unparalleled personal service of a boutique.
Umberg/Zipser believes in giving back, both to our community and to our profession. We regularly handle pro bono matters, and our attorneys devote countless hours to supporting — and leading — professional and community organizations. It would be difficult to find another firm in Orange County, regardless of size, that can boast the number of community leaders that exist at Umberg/Zipser.
By combining big-firm experience with small-firm efficiencies, we can handle complex matters for large companies, but we also are nimble enough to represent small companies and entrepreneurs. Our clients come to us because we deliver the highest quality work product together with extraordinary service.
We Have the Experience to Handle a Wide Array of Matters
We Have Exceptional Attorneys Who Stand Ready to Serve Our Clients
Nicole Ballew Chang, Ph.D.
Brent S. Colasurdo
Martin Fessenmaier, Ph.D.
Mark A. Finkelstein
Mark Finkelstein is a partner at Umberg/Zipser with more than 25 years of intellectual property and complex litigation experience.
Scott B. Garner
Scott B. Garner is a partner at Umberg/Zipser in Irvine, California. He represents clients in complex business litigation matters, with a particular focus on professional liability disputes and ethics counseling.
Leah A. Hamlin
Priti Phukan, Ph.D.
Carole E. Reagan
Todd W. Smith
Adina W. Stowell
Adina Stowell specializes in complex litigation involving corporate, commercial, trade secret, and real estate disputes in both state and federal courts.
Thomas J. Umberg
Vikki L. Vander Woude
Dean J. Zipser
Dean J. Zipser is a recognized leader in the Orange County legal community, having served as President of the Orange County Bar Association (OCBA) along with many other professional leadership positions.
Ethan Feng is an associate at Umberg/Zipser where he focuses his practice in complex commercial litigation, professional liability disputes, and employment litigation.
NEWS and EVENTS
Umberg/Zipser in the Community
Umberg/Zipser LLP (U/Z) is pleased to announce that partner Scott B. Garner was sworn in as the Orange County Bar Association’s President…
Umberg/Zipser LLP is proud to announce that five of its partners have again been included in the Southern California Super Lawyers list for 2020…
Umberg/Zipser LLP (U/Z) is pleased to announce that the firm again has been ranked Tier One in the “Best Law Firms” list by U.S. News & World Report…
Umberg/Zipser is honored to be named again one of Orange County’s 50 most community-minded companies by the Orange County Business Journal in partnership with…
Umberg/Zipser is pleased to announce the firm has been listed as a “California- Recommended 2020” firm by Benchmark Litigation U.S. In addition to the firm’s rankings, attorneys…
Co-founding partner Dean Zipser has been elected President of the Orange County Chapter of the Federal Bar Association, effective November 1. Dean was…
If you are an exceptional attorney who thrives on delivering top-notch client service, and would enjoy practicing law in a small, collegial environment, we invite you to contact us to learn more about how we can support your career growth. Umberg/Zipser is proud of its diversity, and is an equal opportunity employer.