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  • (949) 679-0052
  • [email protected]
  • ABOUT
    • Firm Overview
    • Selected Honors & Awards
    • Professional Activities & Community Involvement
    • Charitable Support
    • Careers
  • PRACTICE AREAS
    • Commercial Litigation
    • Intellectual Property
    • Lawyer Liability & Legal Ethics
    • Class Actions
    • Government & Regulatory
    • White Collar Investigations & Defense
  • PROFESSIONALS
    • Brent S. Colasurdo
    • Ryan S. Dean
    • Ethan Feng
    • Martin Fessenmaier, Ph.D.
    • Mark A. Finkelstein
    • Scott B. Garner
    • Amy Lesperance Han
    • Phillip R. Kaplan
    • Molly Magnuson
    • Priti Phukan, Ph.D.
    • Carole E. Reagan
    • Todd W. Smith
    • Adina W. Stowell
    • Mei Tsang
    • Thomas J. Umberg
    • Vikki L. Vander Woude
    • Dean J. Zipser
  • NEWS
  • CONTACT
Menu
  • ABOUT
    • Firm Overview
    • Selected Honors & Awards
    • Professional Activities & Community Involvement
    • Charitable Support
    • Careers
  • PRACTICE AREAS
    • Commercial Litigation
    • Intellectual Property
    • Lawyer Liability & Legal Ethics
    • Class Actions
    • Government & Regulatory
    • White Collar Investigations & Defense
  • PROFESSIONALS
    • Brent S. Colasurdo
    • Ryan S. Dean
    • Ethan Feng
    • Martin Fessenmaier, Ph.D.
    • Mark A. Finkelstein
    • Scott B. Garner
    • Amy Lesperance Han
    • Phillip R. Kaplan
    • Molly Magnuson
    • Priti Phukan, Ph.D.
    • Carole E. Reagan
    • Todd W. Smith
    • Adina W. Stowell
    • Mei Tsang
    • Thomas J. Umberg
    • Vikki L. Vander Woude
    • Dean J. Zipser
  • NEWS
  • CONTACT

Lawyer Liability & Legal Ethics

PRACTICE AREAS

Commercial Litigation

Intellectual Property

Lawyer Liability and Legal Ethics

Class Actions

Government & Regulatory

White Collar Investigations & Defense

We have extensive experience defending law firms and lawyers against claims by former clients and third parties, including claims of legal malpractice, breach of fiduciary duty, and securities fraud. We have represented lawyers accused of mishandling an array of underlying transactional and litigation matters, and have represented lawyers in connection with claimed ethical violations, including motions for disqualification. Our clients range from the largest international law firms, to small local firms, to individual lawyers.

In addition to defending claims, we also provide ethics counseling to law firms and lawyers. Our lawyers have served at the highest levels of state and local bar ethics committees, including as Chair of the State Bar’s Committee on Professional Responsibility and Conduct, Co-Vice Chair of the State Bar’s Rules Revision Commission, and Co-Chair of the Orange County Bar Association’s Professionalism and Ethics Committee. With that background and experience, our lawyers have been called upon to serve as expert witnesses on ethics and standard of care issues.

Umberg Zipser

1920 Main Street, Suite 750 Irvine CA 92614

Contact Us

If you are interested in retaining our services, or you want to learn more about Umberg/Zipser, we look forward to hearing from you.  Please note that merely sending us an email does not create an attorney-client relationship, and anything you send to us will not be confidential or privileged unless we have agreed to represent you. 

  • (949) 679-0052
  • 1920 Main Street, Suite 750, Irvine, CA 92614
  • [email protected]
  • www.umbergzipser.com

Umberg/Zipser is a premier business litigation and intellectual property 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. 

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Navigation

  • ABOUT
    • Firm Overview
    • Selected Honors & Awards
    • Professional Activities & Community Involvement
    • Charitable Support
    • Careers
  • PRACTICE AREAS
    • Commercial Litigation
    • Intellectual Property
    • Lawyer Liability & Legal Ethics
    • Class Actions
    • Government & Regulatory
    • White Collar Investigations & Defense
  • PROFESSIONALS
    • Brent S. Colasurdo
    • Ryan S. Dean
    • Ethan Feng
    • Martin Fessenmaier, Ph.D.
    • Mark A. Finkelstein
    • Scott B. Garner
    • Amy Lesperance Han
    • Phillip R. Kaplan
    • Molly Magnuson
    • Priti Phukan, Ph.D.
    • Carole E. Reagan
    • Todd W. Smith
    • Adina W. Stowell
    • Mei Tsang
    • Thomas J. Umberg
    • Vikki L. Vander Woude
    • Dean J. Zipser
  • NEWS
  • CONTACT
  • ABOUT
    • Firm Overview
    • Selected Honors & Awards
    • Professional Activities & Community Involvement
    • Charitable Support
    • Careers
  • PRACTICE AREAS
    • Commercial Litigation
    • Intellectual Property
    • Lawyer Liability & Legal Ethics
    • Class Actions
    • Government & Regulatory
    • White Collar Investigations & Defense
  • PROFESSIONALS
    • Brent S. Colasurdo
    • Ryan S. Dean
    • Ethan Feng
    • Martin Fessenmaier, Ph.D.
    • Mark A. Finkelstein
    • Scott B. Garner
    • Amy Lesperance Han
    • Phillip R. Kaplan
    • Molly Magnuson
    • Priti Phukan, Ph.D.
    • Carole E. Reagan
    • Todd W. Smith
    • Adina W. Stowell
    • Mei Tsang
    • Thomas J. Umberg
    • Vikki L. Vander Woude
    • Dean J. Zipser
  • NEWS
  • CONTACT

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