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Dan Seff

Senior Managing Director

Phone: 720.200.7059


Dan is the Senior Managing Director for CBIZ & MHM’s Denver office. A Certified Public Accountant and Certified Valuation Analyst, he has been providing tax, accounting and consulting services to middle-marketing companies and their owners for over 30 years.

Dan’s emphasis is in partnership and corporate income tax matters, real estate, S corporations, individual taxation, and dealing with the IRS. His specific experience includes: tax planning for transactions, corporate provisions, entity structure and reorganizations, qualified retirement plans, mergers and acquisitions, business and tax planning, and due diligence. As an expert in tax M&A work, Dan has been a participant on the buy and sell side of over 400 transactions with varying degrees of size and complexity.

CBIZ acquired The Seff Group, P.C., where Dan was a Shareholder since 1993. Prior to that, he worked at Arthur Andersen & Co. as a tax and audit specialist.


  • Emory University, Bachelor's of Business, Accounting

Professional Designations

  • CPA, Colorado
  • Certified Valuation Analyst

Community Involvement

  • Kent Denver School, Audit Committee
  • St. Elizabeth Episcopal School, Finance Committee
  • Kempe Foundation, Board Member and Treasurer
  • Jewish Community Center, Board Member and Treasurer
  • Rose Hospital, Board Chair

Professional Memberships

  • Colorado Society of CPAs
  • Business Valuation Research Institute
  • Institute of Business Appraisers

Associated Offices

Denver - CBIZ MHM Colorado 4600 S. Ulster St., Suite 900

DenverCO  80237
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