John Robert Armstrong

California State Bar
  • Business Law
  • California, U.S. Central District of California, U.S. Eastern District of California, U.S. Northern District of California, U.S. Southern District of California
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Trial and Appellate Lawyer with 15 years of experience in handling large loss/high exposure, complex civil claims in insurance defense, insurance subrogation, and business, construction, commercial, intellectual property,and estate litigation.

Before becoming a founding partner of Horwitz, Cron & Armstrong, LLP, Mr. Armstrong was a partner with Murtaugh Meyer Nelson & Treglia, LLP (2001-2010), and was previously an associate for the firms of Mower, Koeller, Nebeker, Carlson & Haluck, LLP (1998-2001) and Demler, Armstrong & Rowland, LLP (1996-1998).

Practice Area
  • Business Law
Additional Practice Areas
  • Anti-SLAPP Suits
  • Class Actions
  • Contracts and Contact Litigation
  • Corporate Defense/Derivative Actions
  • D&O Defense
  • Defamation
Jurisdictions Admitted to Practice
U.S. Central District of California
U.S. Eastern District of California
U.S. Northern District of California
U.S. Southern District of California
9th Circuit
Federal Circuit
U.S. Court of Federal Claims
U.S. Court of International Trade
U.S. Supreme Court
U.S. Tax Court
Professional Experience
California State Bar
- Current
Creighton University
Juris Doctorate
- present
Honors: Graduated Cum Laude; Lead Articles Editor Creighton Law Review; Environmental Moot Court Team Member
Professional Associations
Black's Law Dictionary 9th ed.
Contributing Editor
Million Dollar Advocates Forum
- Current
Activities: Prestigious organization made up of lead trial counsel recovering jury verdicts in excess of $1,000,000 for clients.
CACI Subcommittee on Civil Jury Instructions
Subcommittee Member
- Current
William P. Gray Inn of Court
- Current
Social Media
Contact & Map
Horwitz + Armstrong, a professional law corporation
14 Orchard
Suite 200
Lake Forest, CA 92630
Telephone: (949) 540-6540
Horwitz, Cron & Armstrong, LLP
26475 Rancho Parkway South
Lake Forest, CA 92630-8326
Telephone: (949) 540-6540
Fax: (949) 540-6583