Experience, Integrity, Results

About Us

Exceptional client service . . . delivered efficiently

Umberg Zipser LLP is a premier business litigation boutique.  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, Umberg Zipser provides clients with unparalleled legal services.

The firm’s lawyers are recognized as among the very best in their practice areas.  They are consistently named as Best Lawyers in America® and Super Lawyers®.  Last year, for example, founding partner Dean Zipser was named by Best Lawyers as the Lawyer of the Year for Bet-the-Company litigation in Orange County.

We pursue our clients’ objectives strategically and with maximum efficiency and flexibility across a wide array of practice areas, including intellectual property, class actions, unfair competition, environmental, real estate, and other complex business litigation, as well as white collar criminal defense.



Zipser and Garner Named to Southern California Super Lawyer List for 2016

U/Z’s Scott Garner and Dean Zipser have once again been named to the Southern California

U/Z Assists California State Controller’s Office in Obtaining $59 Million Settlement from SAP

ComptrollerThe California State Controller’s Office (“SCO”) announced on June 6, 2016 that the agency had settled its case against SAP Public Services for $59 million. U/Z’s Tom Umberg and Manatt Phelps’ Philip Kaplan were co-lead counsel for SCO. The U/Z team included Tom, partner Carole Reagan, associate Brent Colasurdo, and legal assistants Colleen Gallagher and Erin Wacker. Follow the “Read More” link to read the SCO’s press release.

June 23, 2016 󰀄
Gutierrez Joins U/Z as Litigation Associate

Patrick GutierrezUmberg Zipser LLP is pleased to announce that Patrick R. Gutierrez has joined the firm as a litigation associate. Patrick received a J.D. from Stanford Law School in 2014, where he was a senior editor of Stanford Law Review and an associate editor of Stanford Law & Policy Review, and a B.A., magna cum laude, from Georgetown University in 2011. He was previously a litigation associate with Robinson Calcagnie Robinson Shapiro Davis, Inc. in Newport Beach. “We are very pleased to welcome Patrick to the U/Z litigation team,” said Dean Zipser, co-founding partner of Umberg Zipser. “Patrick is off to a great start as a litigator and will add depth to our growing litigation practice,” added co-founder Tom Umberg.

June 22, 2016 󰀄
We’re Moving Up!

Office BuildingU/Z is pleased to announce that the firm will be “moving up.” We’ll be expanding to a new, larger office suite on the 7th floor of our existing building at 1920 Main Street in Irvine. The move is planned for August 1. “The firm has doubled in size since opening in 2014 and we need additional room to grow,” co-founding partner Dean Zipser commented. “We’ve been very happy with our location, so it’s great to be able to find space in the same building that meets our current and future needs.”

June 20, 2016 󰀄
Garner in Law360: Things Malpractice Lawyers Should Never Tell Clients

Scott GarnerU/Z’s Scott Garner was quoted in a feature article in Law360 on June 7, 2016, “Three things legal malpractice attorneys should never tell clients.” According to the article: “A lawyer can make any number of mistakes that don’t necessarily constitute legal malpractice, said Scott B. Garner, an Umberg Zipser partner who focuses on professional liability and ethics counseling. But to prove malpractice, ‘you have to prove not only negligence but causation and damages, which are the hardest thing for clients to prove,’ he said.”

June 17, 2016 󰀄

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