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Tammy Vonderhorst, CPA

Tax Manager

Ms. Vonderhorst is a Tax Manager with CBM-Councilor, Buchanan & Mitchell, P.C.  She has over 25 years of public accounting experience working with a wide variety of clientele. She concentrates her work and has particular expertise in the Affordable Care Act requirements and penalties, individual taxation, real estate, closely-held businesses and trusts.

Professional Qualifications and Education

  • Certified Public Accountant Maryland
  • Bachelor of Science in Accounting, University of Delaware, Newark, DE

Professional Associations and Activities

  • American Institute of Certified Public Accountants
  • Maryland Association of Certified Public Accountants
  • Maryland Society of Accounting and Tax Professionals


  • Elijah Watt Sells Certificate for outstanding achievement on the CPA exam