J. Kieran Jennings, CMI, CRE

Managing Partner

Kieran Jennings is Managing Partner at Siegel Jennings Co., L.P.A.  Previously a Certified Public Accountant (CPA), Kieran focuses his practice on real property taxation and general state and local tax litigation.  He has successfully tried cases before administrative boards, tribunals, courts, and appellate courts, including the Ohio Supreme Court. Kieran has experience in managing real property tax appeals throughout the U.S. and Canada and assists clients in due diligence property acquisitions, tax planning, and structured agreements between taxpayers and taxing jurisdictions.

Kieran is the Vice President and a member of the Executive Board of the American Property Tax Counsel (APTC), a national organization of which Siegel Jennings is a founding member.  Kieran was the 2022 Chair and 2023 Vice Chair for the Central and Northern Ohio Chapter of the Counselors of Real Estate and previously served on the Board of Directors for the Northern Ohio Chapter of NAIOP.  Kieran regularly conducts seminars and workshops on various property tax issues for industry groups like the National Retail Round Table, The Ohio Society of CPAs, Institute for Professionals in Taxation (IPT), National Business Institute, and Lorman Education Service.  

In 2016, Kieran was awarded the CRE (Counselor of Real Estate) credential by The Counselors of Real Estate, an international group of high-profile real estate practitioners who provide expert advisory services to clients on complex real property and land-related matters. Of the over 150,000 practitioners in commercial real estate today, fewer than 1,100 currently hold the CRE credential. 


  • Cleveland-Marshall College of Law, JD
  • Indiana University of Pennsylvania, BS, Accounting

Bar Admissions

  • Ohio – 1995
  • Pennsylvania – 1996

Professional Associations

  • CRE (Counselor of Real Estate) credential by The Counselors of Real Estate - 2023 Vice Chair, 2022 Chair - Central and Northern Ohio Chapter
  • American Property Tax Counsel – 2018 – present Vice President
  • American Property Tax Counsel – 2012-2017 Secretary
  • NAIOP Commercial Real Estate Development Association Northern Ohio Chapter- Past Legislative Committee Vice Chair
  • ABA – Past Chairman of the Property Tax Committee
  • Institute for Professionals in Taxation
  • Allegheny County Bar Association
  • National Association of Realtors

Selected Publications