Mark Pendery is an experienced litigator who began his legal career with the Internal Revenue Service handling high-profile cases in conjunction with the U.S. Department of Justice. He focuses his practice on white collar investigations and complex business and tax matters and represents clients in both federal and state courts in proceedings involving federal agencies and various local tax agencies. His clients cover a wide range of industries, such as manufacturing, healthcare, and agriculture. Mark has been recognized by Chambers USA 2023 as a leader in the field of Litigation: White-Collar Crime & Government Investigations.

  • Successfully handles business disputes, contract disputes, shareholder attacks, and complex financial and valuation issues
  • Handles significant federal and state investigations, Qui Tam and False Claims Act cases
  • Guides clients through IRS and state examinations and prepares administrative claims and objections
  • Litigates white collar criminal cases
  • Litigates tax and tax-related disputes
  • Handles property tax issues and valuations for large corporate clients




Representative Matters

  • Petitioned the U.S. Tax Court on behalf of a top agricultural industry client after an audit and assessment of significant tax liability in which the IRS conceded before trial
  • Represented a client in a tax shelter matter in which the IRS conceded the case based on a technicality found in the case documents
  • Completed an investigation for a large public university’s Board of Trustees into whether the university satisfied its state law obligations to properly report the alleged sexual misconduct of university employees.  Honigman reviewed over 24,000 documents and interviewed 18 witnesses, including all eight trustees, the university president, and numerous current and former employees 
  • Concluded an investigation for the president and Board of Trustees of a public research university regarding allegations of faculty and staff misconduct and sexual harassment related to an external public relations firm. Honigman interviewed 53 witness, including faculty, staff, employees, former students, and university officials, applying their analysis to the university’s obligations to follow state and federal laws and university policies




Court Admissions



  • The Best Lawyers in America, 2023-2024
    •  Recognized in the areas of Litigation and Controversy and Tax Law
  • Listed in Chambers USA, 2023-2024
    • Recognized in Litigation: White-Collar Crime & Government Investigations in Michigan, Chambers USA states,
      • "Mark Pendery offers expertise spanning an array of complex criminal matters including federal and state investigations and litigation, with particular strength in tax-related issues."
  • Law Bulletin Media
    • Leading Lawyers, Commercial Litigation, 2023-2024
    • Leading Lawyers, Tax Law: Business, 2023-2024
  • Grand Rapids Magazine's Top Lawyers, 2023

Professional & Community Involvement

State Bar of Michigan

State Bar of Kentucky

State Bar of Ohio

Grand Rapids Bar Association

News & Insights

From Chambers USA 2023:

"Mark Pendery offers expertise spanning an array of complex criminal matters including federal and state investigations and litigation, with particular strength in tax-related issues."

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