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
Brent S. Colasurdo
- (949) 679-0052
- [email protected]
Ryan S. Dean
- (949) 679-0052
- [email protected]
Halim Dhanidina
(949) 679-0052
[email protected]
The Honorable Halim Dhanidina (Ret.) is a partner at the prestigious criminal defense firm of Werksman Jackson & Quinn LLP in Los Angeles, where he handles challenging and high profile criminal cases. He serves as co-counsel with Umberg/Zipser in a variety of civil matters as the firm’s Senior Trial and Appellate Counsel.
Ethan Feng
- (949) 679-0052
- [email protected]
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
- [email protected]
Mark A. Finkelstein
- (949) 679-0052
- [email protected]
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
[email protected]
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- [email protected]
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.
Molly Magnuson
- (949) 679-0052
- [email protected]
Molly Magnuson is an experienced, results-oriented litigation attorney. Molly’s experience comes not only from working for significant clients, but also from working in some of America’s top law firms, which has created exposure to high-stakes, complex commercial litigation.
Priti Phukan, Ph.D.
- (949) 679-0052
- [email protected]
Carole E. Reagan
- (949) 679-0052
- [email protected]
Todd W. Smith
- (949) 679-0052
- [email protected]
Adina W. Stowell
- (949) 679-0052
- [email protected]
Adina Stowell specializes in complex litigation involving corporate, commercial, trade secret, and real estate disputes in both state and federal courts.
Jason Tejani
Jason Tejani concentrates his practice on patent prosecution and intellectual property (IP) transactional matters. Prior to his legal career, he was a chemist at a global chemical company.
Mei Tsang
- (949) 679-0052
- [email protected]
Thomas J. Umberg
- (949) 679-0052
- [email protected]
Vikki L. Vander Woude
- (949) 679-0052
- [email protected]
Dean J. Zipser
(949) 679-0052- [email protected]
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
Umberg/Zipser Proud to Sponsor Court Appointed Special Advocates for Children (CASA) Celebration
Umberg/Zipser LLP (U/Z) is proud to be a sponsor for the Court Appointed Special Advocates for Children (CASA) Celebration which was held on Saturday, August 27th. U/Z partner, Todd Smith, has been a member of the CASA Board of Directors for several years and currently serves as its Secretary. Prior to his Board service, Todd was a CASA mentor/advocate for two years. Since 1985,
Raise Your Glass 50th Anniversary Celebration
The Orange County Bar Association’s (OCBA) Charitable Fund’s Annual “Raise Your Glass” event last evening was once again a special experience! Umberg Zipser (U/Z) is humbled to be named Law Firm of the Year, as U/Z attorneys have played prominent roles in the organization over the years. Scott Garner served as the Charitable Fund president for 2021. Dean Zipser is a past president, and
Multiple Umberg/Zipser LLP Attorneys Again Recognized by Best Lawyers in America 2023
Umberg/Zipser LLP (U/Z), a premier business litigation and intellectual property law firm located in Irvine, California, has multiple attorneys who have been recognized by Best Lawyers in America 2023. Firm attorneys Mark Finkelstein, Scott Garner, Phillip Kaplan, Carole Reagan, Adina Stowell, Todd Smith, Mei Tsang, Thomas Umberg, and Dean Zipser have all been selected for inclusion in the 2023 edition of The Best Lawyers in America®.
Umberg/Zipser LLP Wins $47 Million Jury Verdict After Lengthy Trial
Umberg/Zipser LLP (U/Z) located in Irvine, CA and on behalf its client, John Park, won a $47 million jury verdict on February 3, 2022, Sonoma County Superior Court, Case No. SCV-259791. Mr. Park sued the defendant Tracey Buck-Walsh for intentional interference with contractual relations and breach of fiduciary duty. After a lengthy trial that began on November 19, 2021, a Sonoma County jury found
Umberg/Zipser LLP Named One of Orange County’s “2022 Best Places to Work” By Orange County Business Journal
For Immediate Release Umberg/Zipser LLP Named One of Orange County’s “2022 Best Places to Work” By Orange County Business Journal IRVINE, Calif. – July 5, 2022 – Umberg/Zipser LLP, a premier business litigation and intellectual property law firm, has been named one of the 2022 Best Places to Work in Orange County by the Orange County Business Journal. This survey and award program identifies
Umberg/Zipser LLP Announces Attorney Molly Magnuson has Joined the Firm
Umberg/Zipser LLP (U/Z) is delighted to welcome our newest attorney, Molly Magnuson, to our team. Molly is a seasoned attorney with extensive trial experience who will further bolster our litigation ranks. She has successfully represented clients in a broad range of complex contract and commercial litigation cases, including intellectual property, entertainment litigation, class actions and professional malpractice matters. Molly began her career and spent
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.
CAREERS
At Umberg/Zipser LLP, it’s the quality of our people that makes our firm and work environment rewarding and unique. We are proud to have been recognized by our team as one of Orange County’s “2022 Best Places to Work.”
If you are an exceptional attorney, who thrives on delivering top-notch client service, and enjoys practicing law in a strong team culture, we invite you to contact us to learn more about how we can support your career growth.
Umberg/Zipser is also proud to have created a work environment that promotes and honors diversity and we are an equal opportunity employer. We look forward to hearing from you soon.