Thomas W. (TW) Langevin practices in the Business Representation & Transactions Group where he assists public and private companies in the federal income tax and business planning areas. TW works with clients on a wide variety of federal, state, and local tax matters including income tax, corporate tax, partnership tax, S Corporation tax, and tax-exempt matters. TW primarily advises clients in matters relating to business entity formation, mergers and acquisitions, operational tax issues, reorganizations, tax-efficient restructurings, and tax-efficient exit strategies. Additionally, TW has extensive experience advising companies, founders, and investors with compliance and planning opportunities involving IRC Section 1202 qualified small business stock (QSBS).

TW frequently serves as outside general counsel to private equity firms and their portfolio companies where he advises them through fund formations, negotiations with portfolio investments, and fund operations and dissolutions.

Prior to joining KMK Law, TW was an associate at a full service business law firm based in Dayton, Ohio where he counseled clients on tax and general corporate matters. TW obtained an LL.M. in Taxation from the University of Florida Levin College of Law, and earned his J.D. from the University of Arkansas School of Law, magna cum laude. He also graduated with a B.A. in Economics from Arkansas State University, magna cum laude.

Professional and Community Involvement

Cincinnati Bar Association 

Ohio State Bar Association

Awards & Recognition

Listed in The Best Lawyers in America: Ones to Watch, 2024

  • 2024 Best Lawyers Ones to Watch

News & Resources




What is the best advice you’ve ever received?
Find something you’re good at. Then apply the thousands of hours to become great at it. Because once you’re great at something, you will become passionate about whatever it is.

Where would we find you on a typical Saturday/Sunday?
I can often be found doing some type of outdoor activity. I enjoy going for runs, walking around a park, riding my bike on local trails, and playing pickleball. I also often go on hikes in East Fork State Park, and I try to go on a couple backpacking trips each year.

What is something people might be surprised to learn about you?
I am interested in reading fantasy books. My interest started prior to adolescence from reading the Icewind Dale Trilogy and the Redwall series. I have continued to read fantasy books ever since, which includes series such as The Lord of the Rings, A Song of Ice and Fire (a.k.a. Game of Thrones), The Wheel of Time, The Stormlight Archive, The First Law, The Broken Empire, and more.


  • Arkansas
  • Ohio
  • U.S. Tax Court


LL.M. Taxation, University of Florida Levin College of Law, 2017

J.D., University of Arkansas School of Law, 2016, magna cum laude

B.A., Arkansas State University, 2013, magna cum laude

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