Katherine C. Thornton

Legal Consultant*

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P: (202) 787-5513
E: kthornton@cassidylevy.com

Katherine Thornton consults extensively with Cassidy Levy Kent on customs matters. Ms. Thornton’s work is primarily focused on resolving classification issues, including work in support of protests, ruling requests, prior disclosures, responses to U.S. Customs and Border Protection requests for information, and comments to notices published in the CBP Bulletin and Federal Register.

Ms. Thornton previously practiced trade law in several Washington DC law firms. During law school, she interned at a San Diego-based nonprofit, where she conducted legal research in support of the organization’s mission to advance education in the third world. She also previously interned at an aerospace engineering firm, where she assisted in-house counsel with all aspects of patent prosecution.

Ms. Thornton received an M.B.A. in Finance from the Owen School of Management at Vanderbilt University. She received a B.S. in Nuclear Science and Engineering from the Massachusetts Institute of Technology.


  • J.D., Vanderbilt University
  • M.B.A., Owen School of Management at Vanderbilt University
  • B.S., Massachusetts Institute of Technology

* Ms. Thornton is an independent legal consultant who works with Cassidy Levy Kent.


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