Litigation Services

Mark Sullivan Consulting offers expert witnessing services in criminal white-collar litigation, leveraging extensive experience in tax controversy and IRS regulations. The firm provides credible and professional testimony, supported by thorough analysis and deep industry knowledge. Their expertise spans various sectors, including construction, real estate, retail, medical, and legal, ensuring accurate and reliable insights in complex legal cases. Mark Sullivan Consulting is committed to delivering high-quality, objective, and persuasive expert witness services. 

 

We typically work under a Kovel agreement, which protects our work product under the attorney-client privilege. Past engagements included investigations by various federal agencies involving:

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• Attempt to Evade or Defeat Tax

• Willful Failure to File Return

• Fraud and False Statements

• Bank, Mail and Wire Fraud

• Federal Program Theft and Wire Fraud

• Bankruptcy Fraud

• Freedom of Information Act - IRS Transcripts

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In addition, Mark previously served as the consulting and expert witness for the Federal Defenders Office in financial crimes cases in multiple federal district courts.

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Curriculum Vitae available upon request