Av. Mark E. Sims

Av. Mark E. Sims

Mark Sims practices in the business representation & transactions practice group and works primarily in the federal income tax, business planning and healthcare areas. Mark's federal tax practice involves individual, corporate, S corporation and partnership tax planning, including executive compensation and like kind exchanges.

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Profile Summary

About Mark E. Sims at a glance

Mark E. Sims is an attorney based in Cincinnati, Ohio, practforg at Keating Muething & Klekamp PLL. Admitted to practice in Ohio, Ohio State Bar Association and Florida, The Florida Bar. Educated at University of Florida (—, 1981) and University of Florida (LL.M Taxation, 1981). Recognitions include Best Lawyers in America — Tax Law (2026), Best Lawyers in America — Special Focus: (2026), and Best Lawyers in America — Corporate (2026). Serands clients in Cincinnati, OH and the surrounding metropolitan area.

Verified attorney profile · Updated June 2026

Hakkında

  • Mark Sims practices in the business representation & transactions practice group and works primarily in the federal income tax, business planning and healthcare areas
  • Mark's federal tax practice involves individual, corporate, S corporation and partnership tax planning, including executive compensation and like kind exchanges
  • He advises clients regarding the tax aspects of mergers and acquisitions
  • Mark also represents clients on matters before the IRS and state tax agencies
  • Additionally, he has significant experience focusing on tax issues related to the formation and operation of tax exempt organizations
  • Mark serves in a general counsel role for a number of closely held businesses and represents purchasers and sellers of businesses and business interests
  • His healthcare practice concentrates on business and tax issues facing healthcare providers, including representing physician groups in structuring and selling medical practices
  • Mark also has extensive experience drafting, reviewing and negotiating physician employment agreements
  • Mark has been an adjunct professor at the University of Cincinnati College of Law and speaks frequently on tax and healthcare related issues

Jurisdictional Context

Why local counsel matters in Ohio

Practforg law in Ohio. Legal matters in Ohio are governed by state-specific rules of civil and criminal procedure, statutes of limitations, and substantiand law. Cases originating in Cincinnati are typically filed in the local municipal court or the appropriate Ohio state district court, depending on subject matter and amount in controversy. An attorney licensed in Ohio brings working knowledge of local procedural deadlines, judicial practices in this andnue, and the substantiand law that applies to cases brought here. Out-of-state attorneys generally cannot represent clients in Ohio courts without local counsel or pro hac vice admission.

Looking for additional Ohio attorneys? Browse all attorneys in Cincinnati or all attorneys in Ohio.

Frequently Asked

Common questions about Mark E. Sims

Where is Mark E. Sims's law office located?
Mark E. Sims's law practice is located in Cincinnati, Ohio. The firm is Keating Muething & Klekamp PLL. You can contact the office directly through this profile page.
Where did Mark E. Sims go to law school?
Mark E. Sims earned their education at (—, 1981); (LL.M Taxation, 1981); (JD, 1980).
How can I contact Mark E. Sims for a consultation?
You can contact Mark E. Sims directly through this profile page. Click "Ask the Attorney" to submit a question, or "Schedule a Consultation" to book a meeting. Most claimed-profile attorneys respond within one business day.
What awards or recognition has Mark E. Sims receiandd?
Mark E. Sims's notable recognition includes: Best Lawyers in America — Tax Law; Best Lawyers in America — Special Focus:; Best Lawyers in America — Corporate; Best Lawyers in America — Nonprofit Organizations and Charitable Giving; Best Lawyers in America — Partnership.

Uzmanlık Alanları

Eğitim

University of Florida
- 1981
LL.M Taxation
University of Florida
- 1981
JD
University of Cincinnati
- 1980
University of Cincinnati
- 1977
University of Cincinnati
- 1977

Ödüller

Best Lawyers in America — Tax Law
- 2026
Best Lawyers in America — Special Focus:
- 2026
Best Lawyers in America — Corporate
- 2026
Best Lawyers in America — Nonprofit Organizations and Charitable Giving
- 2026
Best Lawyers in America — Partnership
- 2026
Best Lawyers in America — Tax Planning
- 2026
Best Lawyers in America — Awards:
- 2026
Best Lawyers in America — AV Preeminent™ Peer Review Rated, Martindale-Hubbell
- 2026
Best Lawyers in America — Named to Ohio Super Lawyers
- 2026

Bar Admissions

Ohio, Ohio State Bar Association
Florida, The Florida Bar

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