Martin Fessenmaier Recognized as an IAM Strategy 300 Global Leader for the Fourth Consecutive Year

Martin Fessenmaier recognized as an IAM Strategy 300 Global Leader

Umberg/Zipser congratulates Martin Fessenmaier on being named an IAM Strategy 300 Global Leader for the fourth consecutive year.

The IAM Strategy 300 recognizes leading professionals from around the world for their strategic insight into patents and intellectual property. Martin’s continued recognition reflects his thoughtful approach to helping clients develop, protect, and maximize the value of their innovation.

Congratulations, Martin, on this well-deserved honor.

Five Umberg/Zipser Attorneys Recognized in the 2027 Southern California Super Lawyers® List

Five Umberg/Zipser attorneys recognized in the 2027 Southern California Super Lawyers list

Umberg/Zipser LLP is proud to announce that five attorneys have been selected for inclusion in the 2027 Southern California Super Lawyers® list, recognizing attorneys who have attained a high degree of peer recognition and professional achievement.

  • Dean J. Zipser — Business Litigation (recognized for the 23rd year)
  • Mark A. Finkelstein — Intellectual Property Litigation (recognized for the 18th year)
  • Scott B. Garner — Professional Liability: Defense (recognized for the 13th year)
  • Mei Tsang — Intellectual Property (recognized for the 11th year)
  • Carole E. Reagan — Business Litigation (recognized for the 9th year)

The continued recognition of these attorneys reflects the depth of experience and talent across Umberg/Zipser’s litigation and intellectual property practices. Whether representing businesses in high-stakes commercial disputes, protecting valuable intellectual property, or advising clients in complex professional liability matters, our attorneys are committed to delivering strategic, results-driven counsel.

We congratulate Dean, Mark, Scott, Mei, and Carole on this achievement and thank our clients and peers for the confidence they place in our firm.

Scott Garner and Amy Lesperance Author “A New Era of Civility?” for Orange County Lawyer

In the August 2026 issue of Orange County Lawyer, Umberg/Zipser partner Scott Garner and associate Amy Lesperance explore the growing emphasis on civility in the legal profession. The article examines recent developments from the California Supreme Court and State Bar, explains why civility is fully compatible with zealous advocacy, and discusses the practical benefits of professionalism for clients, courts, and attorneys alike. Drawing on recent case law, ethics guidance, and evolving professional standards, the authors make the case that civility is not simply good manners. It is an essential component of effective advocacy and a hallmark of excellent lawyering.

Read “A New Era of Civility?” in Orange County Lawyer (PDF).

This article first appeared in Orange County Lawyer, August 2026 (Vol. 68 No. 8), p. 34. The views expressed herein are those of the author. They do not necessarily represent the views of Orange County Lawyer magazine, the Orange County Bar Association, the Orange County Bar Association Charitable Fund, or their staffs, contributors, or advertisers. All legal and other issues must be independently researched.

Umberg/Zipser LLP Sponsors OCBA Charitable Fund Annual Judge Kenneth Lae Charity Golf Scramble in Orange County

Umberg/Zipser LLP Welcomes Jeremy G. Suiter as Partner

IRVINE, Calif., March 23, 2026 — Umberg/Zipser LLP is pleased to announce that Jeremy G. Suiter has joined the firm as a partner in its litigation practice.

Suiter brings more than two decades of experience representing businesses and individuals in complex business litigation, including shareholder and partnership conflicts, fraud and business tort claims, trade secret matters, and contract disputes. His practice focuses particularly on disputes involving closely held companies and founders, where litigation often intersects with sensitive business relationships and strategic decision-making.

“Jeremy is an outstanding litigator with a reputation for thoughtful advocacy and practical judgment,” said Mark Finkelstein, Managing Partner of Umberg/Zipser. “His experience handling high-stakes business disputes for companies and entrepreneurs aligns perfectly with the type of matters our clients face. We are excited to welcome him to the firm.”

Prior to joining Umberg/Zipser, Suiter was a partner at Stradling Yocca Carlson & Rauth, where he represented clients in complex litigation matters in state and federal courts as well as arbitration proceedings.

“I’m thrilled to join Umberg/Zipser,” said Suiter. “The firm has built a strong reputation for sophisticated litigation and intellectual property work while maintaining the collaborative culture and entrepreneurial mindset of a boutique practice. I look forward to working with this talented team and continuing to serve clients facing complex business disputes.”

Umberg/Zipser LLP is an Irvine-based boutique law firm known for its strength in business litigation, intellectual property, and lawyer liability and legal ethics. The addition of Suiter further deepens the firm’s litigation bench and enhances its ability to represent clients navigating complex disputes.

For more information, visit www.uzllp.com.

Mei Tsang Featured in Super Lawyers Southern California

We’re proud to share that Umberg/Zipser partner Mei Tsang is featured in the 2026 Super Lawyers Southern California issue (see p. 38).

In the profile, Mei reflects on her journey from Xi’an to leadership in Orange County’s legal community, her passion for intellectual property law, and her commitment to mentoring, service, and expanding access to justice. The article highlights her thoughtful, strategic approach to helping clients identify, protect, and enforce their IP assets worldwide, as well as the curiosity and connection she brings to everything she does.

Congratulations, Mei, on this well-deserved recognition.

Read the full article here: https://digital.superlawyers.com/v/Southern-California-2026/?page=1

2026 Super Lawyers Honorees

Umberg/Zipser LLP is pleased to share that seven firm partners have been named to the 2026 Southern California Super Lawyers list, an honor awarded to no more than five percent of attorneys statewide.

The firm also celebrates Dean Zipser’s continued distinction as one of the Top 50 Orange County Lawyers, marking his eighth consecutive year receiving this recognition.

The following Umberg/Zipser attorneys have earned placement on the Southern California Super Lawyers list, each recognized across multiple years:

Additionally, Priti Phukan, Ph.D., has once again been selected as a Southern California Super Lawyers “Rising Star” in Intellectual Property Law. This marks her seventh consecutive year receiving that distinction.

Umberg/Zipser LLP Elects Mark Finkelstein as Managing Partner

IRVINE, Calif., January 5, 2026 — Umberg/Zipser LLP announced today that partner Mark Finkelstein has been elected Managing Partner, becoming only the second managing partner in the firm’s history. Founding partner Dean Zipser, who has served as the firm’s sole managing partner since its inception, will continue his active legal practice while supporting the firm’s leadership transition.

This election reflects Umberg/Zipser’s thoughtful approach to long-term succession and its continued commitment to strategic growth, client service, and firm culture.

“Mark has been an integral part of Umberg/Zipser’s success and evolution,” said Dean Zipser. “He is deeply respected by our partners and clients alike, and he brings a steady, collaborative leadership style that reflects our firm’s values. I am proud of what we’ve built together and confident that Mark is the right person to lead the firm into its next chapter.”

Mark has been a key leader within the firm, and is known for his stellar legal and business judgment, client-first mindset, and ability to navigate complex challenges. As Managing Partner, he will focus on guiding the firm’s long-term strategy while maintaining the culture of excellence and collegiality that has defined Umberg/Zipser since its founding.

“It’s an honor to step into this role and to follow Dean, whose leadership and vision shaped the firm from day one,” said Mark. “Umberg/Zipser has always been about unwavering legal advocacy, a commitment to our community, and working as a team to deliver unmatched service to our clients. I look forward to building on the foundation that Dean tirelessly built for over a decade.”

About Umberg/Zipser LLP

Umberg/Zipser LLP is a leading law firm based in Irvine, California. With a team of highly skilled attorneys, the firm is known for its sophisticated business litigation and intellectual property practices. Umberg/Zipser is recognized for delivering strategic, results-driven solutions tailored to each client’s business objectives.

Media Contact:
Kristina Hawfield
Communications Consultant to Umberg/Zipser LLP
949-278-0973
[email protected]

Umberg/Zipser LLP: Tier One for 2026 in Best Law Firms Rankings

Umberg/Zipser LLP is proud to announce that we have once again earned Tier One recognition in the 2026 Best Law Firms® rankings for the Metropolitan Orange County area. This honor reflects our continued leadership and excellence in key litigation and intellectual property arenas.

Tier One Rankings (Orange County – Metropolitan):
  • Bet-the-Company Litigation
  • Commercial Litigation
  • Copyright Law
  • Litigation – Banking and Finance
  • Litigation – Intellectual Property
  • Litigation – Real Estate
  • Trademark Law
We are honored to be ranked at the highest level across these highly competitive practice areas. These distinctions underscore our commitment to delivering strategic counsel, trial‑tested advocacy, and exceptional client service.

Umberg/Zipser LLP is Proud to Support the California Asian Pacific American Bar Association and Congratulates Our Partner, Mei Tsang, on Receiving the President’s Award