David B. Rosenbaum

David B. Rosenbaum: Complex Commercial Litigation Attorney in Phoenix, Arizona

With over three decades of experience, David B. Rosenbaum has dedicated his legal career to representing clients in a wide array of complex commercial litigation matters. His practice encompasses all facets of commercial disputes, including securities fraud class actions, intellectual property disputes, employment controversies (particularly discrimination lawsuits), and sales and use tax disputes.

Practice Areas

• Bet-the-Company Litigation
• Commercial Litigation
• Litigation - Construction
• Litigation - Intellectual Property
• Litigation - Mergers and Acquisitions
• Litigation - Securities

Education & Credentials

• Universities: Georgetown University, University of Pennsylvania
• Education: JD from Duke Law School; BA in Political Science from Columbia University, 1985. Admitted to practice before all Arizona state and federal courts.
• Bar Admissions: Arizona, New Mexico, Colorado, Washington D.C.
• Awards & Recognitions:
  • LAWYER OF THE YEAR: Litigation - Intellectual Property, Phoenix (2024)
  • LAWYER OF THE YEAR: Litigation - Securities, Phoenix (2024)
  • LAWYER OF THE YEAR: Litigation - Securities, Phoenix (2021)
  • LAWYER OF THE YEAR: Litigation - Intellectual Property, Phoenix (2020)
  • LAWYER OF THE YEAR: Bet-the-Company Litigation, Phoenix (2016)
  • LAWYER OF THE YEAR: Litigation - Securities, Phoenix (2014)
  • LAWYER OF THE YEAR: Bet-the-Company Litigation, Phoenix (2011)
  • Recognized: Bet-the-Company Litigation
  • Recognized: Commercial Litigation
  • Recognized: Litigation - Construction
  • Recognized: Litigation - Intellectual Property
  • Recognized: Litigation - Mergers and Acquisitions
  • Recognized: Litigation - Securities
  • Special Focus: Civil Litigation, Class Actions, Commercial Disputes, Complex Litigation, COVID-19, Defendants, Intellectual Property, SEC Enforcement, Stockholders' Suits
• Firms: Osborn Maledon PA; Past President of the Federal Bar Association and Lawyer Representative to the Ninth Circuit Judicial Conference
• Affiliations: Member, American Bar Association, Arizona State Bar, Federal Bar Association, National Employment Lawyers Association
• Languages: English (native), Spanish (fluent)
• Recognized Since: Recognized in Best Attorney USA since 2005