Mark J. Zummo

Admitted to Practice

  • State of Ohio (1980)
  • U.S. District Court, Southern District of Ohio (1980)


  • J.D. University of Cincinnati College of Law (1980), Law Review (1978–1980)
  • B.A., University of Virginia (1977), with high distinction, Member of Phi Beta Kappa

Mark J. Zummo

Mr. Zummo is a Partner who joined the firm in 1981. His practice is devoted primarily to corporate, mergers and acquisitions, and securities law. Mr. Zummo has represented family-owned, private, and publicly held businesses in a wide variety of industries, including accounting, architectural and other professional service firms; restaurant and other franchised systems; healthcare providers; and manufacturing and distribution companies. He has worked extensively in the areas of:

  • selection, formation and organization of business entities, including preparation of shareholder, partnership and operating agreements, buy/sell agreements, employment agreements, and stock option, deferred compensation and other executive benefit plans;
  • business succession planning;
  • mergers and acquisitions;
  • franchising;
  • securities and finance, including initial and secondary public offerings, Exchange Act reporting, private securities offerings, going private transactions, and private equity and venture capital financings; and
  • commercial real estate development, construction and leasing.

In addition to his law practice, Mr. Zummo has been a member of several charitable boards.

Memberships & Affiliations

Honors & Awards

  • Recognized as one of Ohio’s Super Lawyers
  • Martindale-Hubbell AV Rated
  • Leadership Cincinnati Class XXII – 1999


On November 24, 2020, the SEC proposed amendments to Rule 701 (Compensatory Offerings and Sales of Securities to Employees and Consultants) to modernize the framework for issuers in compensation transactions. This article by K&P attorneys Mark J. Zummo and Aaron M. Monk explores the impact of these amendments for non-reporting companies and their ownership group. 

Trade Secrets Handbook for Franchise and Distribution Companies

Member Editorial Board (ABA Forum on Franchising)