Experience
Integrity
Results
Firm Overview
About Us
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.
Our Culture
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.
Why Us?
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.
Practice Areas
We Have the Experience to Handle a Wide Array of Matters
Professionals
We Have Exceptional Attorneys Who Stand Ready to Serve Our Clients
Nicole Ballew Chang, Ph.D.
- (949) 679-0052
- nballewchang@umbergzipser.com
Brent S. Colasurdo
- (949) 679-0052
- bcolasurdo@umbergzipser.com
Negah M. Daily
(949) 679-0052
ndaily@umbergzipser.com
Negah specializes in commercial litigation. She assists clients of all sizes in a range of industries including commercial real estate and real estate finance.
Ryan S. Dean
- (949) 679-0052
- rdean@umbergzipser.com
Ethan Feng
- (949) 679-0052
- ethanfeng@umbergzipser.com
Ethan Feng is an associate at Umberg/Zipser where he focuses his practice in complex commercial litigation, professional liability disputes, and employment litigation.
Martin Fessenmaier, Ph.D.
- (949) 679-0052
- mfessenmaier@umbergzipser.com
Mark A. Finkelstein
- (949) 679-0052
- mfinkelstein@umbergzipser.com
Mark Finkelstein is a partner at Umberg/Zipser with more than 25 years of intellectual property and complex litigation experience.
Scott B. Garner
- (949) 679-0052
sgarner@umbergzipser.com
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.
Phillip R. Kaplan
Partner
(949) 679-0052- pkaplan@umbergzipser.com
Phillip R. Kaplan is a recognized leader in the Orange County legal community, and is an accomplished business trial lawyer with a record of handling his client’s most difficult cases.
Priti Phukan, Ph.D.
- (949) 679-0052
- pphukan@umbergzipser.com
Carole E. Reagan
- (949) 679-0052
- creagan@umbergzipser.com
Todd W. Smith
- (949) 679-0052
- tsmith@umbergzipser.com
Adina W. Stowell
- (949) 679-0052
- astowell@umbergzipser.com
Adina Stowell specializes in complex litigation involving corporate, commercial, trade secret, and real estate disputes in both state and federal courts.
Mei Tsang
- (949) 679-0052
- mtsang@umbergzipser.com
Thomas J. Umberg
- (949) 679-0052
- tumberg@umbergzipser.com
Vikki L. Vander Woude
- (949) 679-0052
- vvanderwoude@umbergzipser.com
Dean J. Zipser
(949) 679-0052- dzipser@umbergzipser.com
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.
NEWS and EVENTS
Umberg/Zipser in the Community
U/Z Honored as Law Firm of the Year at the VLI 2020 Lawyers for Warriors Event
U/Z was proud to be recognized as the 2020 Law Firm of the Year by the Veterans Legal Institute (VLI) at its annual Lawyers for Warriors Networking and Fundraising Event.
Umberg/Zipser Again Named to Orange County Best Law Firms List for 2021
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 and Best Lawyers® for the Orange County metropolitan area. The firm has received this recognition each year since it was formed. The ranking showcases top law firms recognized by clients and peers for delivering professional excellence
Business Litigation Partner Phillip Kaplan Joins Umberg/Zipser
Umberg/Zipser LLP is pleased to announce that partner Phillip R. Kaplan has joined the firm.
Attorneys Ethan Feng and Negah Daily Join U/Z
Umberg/Zipser LLP (U/Z) has increased our litigation ranks. Commercial litigators Ethan Feng and Negah Daily have joined the firm.
Public Service Corner – Scott B. Garner
Scott Garner is a partner at Umberg/Zipser where he represents clients in complex business litigation matters, with a particular focus on professional liability disputes and ethics counseling. Scott currently serves as President of the Orange County Bar Association (OCBA), and has shown remarkable leadership during the pandemic. He played a key role in guiding the OCBA during turbulent times through the introduction of several
Adina Stowell Joins Pretend City Children’s Museum Board of Directors
Umberg/Zipser LLP (U/Z) is pleased to announce that partner Adina Stowell is on the Board of Directors of Pretend City Children’s Museum. Adina says, “Pretend City is a leader in providing healthy development and early learning resources. Before I joined the Board, I had been going to Pretend City for years with my own children. I could see how much they were learning through play
CAREERS
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.