Leslie Lambert

Senior Director
15+ years of experience in forensic accounting and complex investigations
Specializes in investigating complex financial crime, corporate misconduct, and digital-asset transactions
Holds CPA, CFF, and CCAS certifications
Phoenix
@alvarezmarsal
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Leslie Lambert is a Senior Director in Alvarez & Marsal Disputes and Investigations in Phoenix. She leads complex financial crime and forensic accounting investigations and advises on high-stakes disputes, including fraud and misappropriation, whistleblower complaints, financial misconduct and governance failures, and digital-asset tracing and related investigations.

Ms. Lambert has more than 15 years of experience analyzing financial records, reconstructing transactions, evaluating internal controls, and delivering litigation-ready findings to outside counsel, boards, regulators, and executive leadership. She has supported internal-fraud investigations, fund-flow analyses, and asset tracing across both traditional financial systems and blockchain-based environments. Her work often involves translating complex financial and blockchain data into clear, defensible analyses for legal and regulatory audiences.

Ms. Lambert has served clients across the financial services, fintech, manufacturing, technology, and other regulated sectors. She has led investigations arising from whistleblower complaints, regulatory inquiries, and litigation, and she advises clients on strengthening financial-crime and fraud-risk management programs, including control enhancements, governance practices, and remediation efforts.

Prior to joining A&M, Ms. Lambert worked in the Global Investigations and Compliance practice at Navigant Consulting (now Guidehouse) in New York, where she focused on anti-bribery, anti-corruption, and Foreign Corrupt Practices Act (FCPA) matters.

Ms. Lambert earned a bachelor’s degree in economics from the University of Virginia and a master’s degree in accountancy from the College of William & Mary. She is a Certified Public Accountant (CPA), Certified in Financial Forensics (CFF), and a Certified Cryptoasset Anti-Financial Crime Specialist (CCAS).