Patrick DeLangis is a CA CPA with forensic accounting experience using eDiscovery, computer forensics, digital forensics for intellectual property.

Patrick DeLangis

, Managing Director


Patrick DeLangis
Managing Director


  • Commercial Litigation
  • Financial Statement Fraud
  • Internal & External Fraud Schemes
  • Internal Investigations
  • Forensic Accounting Investigations
  • Fraud Investigations
  • White Collar Investigations
  • Computer Forensics
  • eDiscovery
  • Digital Forensics


  • Certified Public Accountant (CPA)
  • Certified in Financial Forensics (CFF)
  • Master Analyst in Financial Forensics (MAFF)
  • Certified Valuation Analyst (CVA)
  • Certified Fraud Examiner (CFE)
  • EnCase Certified Examiner (EnCE)
  • Loyola Marymount University: BS, Accounting


  • American Institute of Certified Public Accountants
  • California Society of Certified Public Accountants
  • Association of Certified Fraud Examiners
  • National Association of Certified Valuators & Analysts
  • National Association of Forensic Economists
  • Collegium of Pecuniary Damages Experts
  • American Academy of Economic & Financial Experts
  • High Technology Crime Investigation Association

Patrick DeLangis is a Managing Director in the Financial Advisory Services Group, with over 20 years of diversified litigation consulting and forensic accounting experience. He has testified in federal and state courts, as well as other tribunals in California, Oregon and Washington. Patrick’s expert witness services have included matters that involve white-collar crime, internal and external fraud investigations, internal controls, commercial disputes, intellectual property, employment disputes, personal injury, wrongful death, product liability, construction disputes, and shareholder disputes.

Prior to joining the firm, Patrick was a Principal in a Northern California-based CPA firm, specializing in forensic accounting and forensic technology services. In addition, Patrick has been a leader of the litigation consulting and forensic accounting practices at other public accounting firms. His background also includes traditional accounting services, financial statement attestation, tax return preparation, bookkeeping and sophisticated consulting engagements.

Patrick is a frequent speaker on topics such as forensic accounting, economic damages and personal injury damages.

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