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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

White Collar Investigations & Defense

PRACTICE AREAS

Commercial Litigation

Intellectual Property

Lawyer Liability and Legal Ethics

Class Actions

Government & Regulatory

White Collar Investigations & Defense

We have deep experience in defending and investigating allegations of white collar criminal conduct. One of our founding partners was a federal prosecutor who also served as the Deputy Drug Czar in the Clinton Administration, as well as a military war crimes prosecutor.

Our most significant successes are the many cases in which our attorneys have persuaded prosecutors not to file, or which have been disposed of pre- or post-indictment on favorable terms. One of our attorneys has a TOP SECRET/SCI security clearance, which allows him to investigate and defend the most sensitive government and national security matters.

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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  • 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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