Harlan S. Louis, Member

Harlan S. Louis
T 614.229.3225
F 614.221.0479
Dayton Office
T 937.223.4701
F 937-223-0170
Columbus Office
T 614.221.3155
F 614.221.0479

Harlan is a certified specialist in estate planning, trust and probate law, with over twenty-five years of experience. Harlan represents individuals, families, fiduciaries, beneficiaries, charities and businesses.  He is very experienced in tax planning, tax audits and tax appeals, with a background as a CPA and a master's degree in tax law.  Harlan works with clients to craft business succession plans and strategies to reduce business and individual taxes.

Noteworthy Experience

  • Works on federal, state, and local tax matters, including representing Mapfre Stadium on tax matters, together with passage of legislation to exempt the stadium from real property tax.
  • Argues tax cases before the Ohio Supreme Court, the Ohio Board of Tax Appeals, Ohio Department of Taxation, and county Boards of Revision.
  • Represents clients in front of the Internal Revenue Service and the U.S. Tax Court.
  • Part of the first group designated as a Certified Specialist in Estate Planning, Trust, and Probate Law by the Ohio State Bar Association.

Professional Recognition

  • Top Lawyer in Columbus, named by Columbus CEO Magazine
  • Martindale Hubbell, AV Rating
  • Super Lawyers, 2021-2023

Affiliations and Civic Involvement

  • The Ohio State University, Professional Advisory Council
  • Certified Specialist in Estate Planning, Trust, and Probate Law by the Ohio State Bar Association
  • Jewish Columbus
    • Treasurer
    • Board of Trustees and Executive Committee
    • Chair, Finance Committee
    • Former Co-Chair, Trusted Charitable Advisors Program
  • Columbus Jewish Foundation
    • Treasurer
    • Board of Trustees and Executive Committee
  • The Columbus Foundation, Professional Council
  • LifeCare Alliance, Legacy Endowment Campaign, Advisory Council
  • Ohio State Bar Association
    • Council Member, Estate Planning, Trust and Probate Law Section
    • Member, Taxation Law Committee
  • Florida State Bar Association
  • University of Florida Advisor Network, Member
  • Certified Public Accountant (inactive)
  • Former Chairman, Columbus Estate Planning Council
  • Former Chairman, Columbus Bar Association, Probate Court Committee


  • University of Florida College of Law (LL.M. in Taxation)
  • University of Dayton School of Law (J.D.) cum laude
  • Miami University (B.S. in Accounting)

Bar Admissions

  • Ohio
  • Florida
  • United States District Court, Southern District of Ohio
  • United States Tax Court