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Mary Katherine Campion


Mary Katherine Campion is a labor and employment associate in Baker Donelson's Memphis office.

Professional Biography

As a member of the Advocacy Department, Ms. Campion assists clients in labor and employment matters.

  • Assisted in representing a client in a three-day jury trial in a breach of contract action arising out of a lease dispute; obtained a unanimous jury verdict in favor of the client, which resulted in a global settlement of nine related cases and a settlement amount of more than $1 million for the client.

  • Defended a pharmaceutical company in a product liability lawsuit alleging that prescription medication manufactured by the company was inadequately labeled; obtained dismissal of the lawsuit on a motion to dismiss.

  • Obtained dismissal of a financial institution from a lawsuit alleging breach of contract and fraud arising out of a mortgage transaction on a motion to dismiss; successfully defended dismissal of the lawsuit on appeal.

  • Defended a grocery store in a product liability lawsuit alleging that food purchased from the store was improperly labeled, causing the minor plaintiff to have a severe allergic reaction.

  • Successfully represented a national real estate investment trust in arbitration proceedings in which the plaintiff had sought more than $75 million in damages for the alleged breach of contract and tortious interference with business relationships.

  • Successfully appealed an action brought by a newspaper seeking access to application materials in the possession of a nonprofit professional association under the Tennessee Public Records Act, obtaining reversal on appeal.

  • Obtained judgment in state court for a commercial aviation distributor for unpaid goods; successfully recovered funds from debtor's bank account to satisfy the judgment.

  • Named a Best Lawyers in America® "Ones to Watch" in Commercial Litigation and Product Liability Litigation - Defendants (2021, 2022)
  • Recipient – Baker Donelson Firmwide Pro Bono Attorney of the Year (2019)
  • Named an Attorney for Justice by the Tennessee Supreme Court (2018)
  • Member – Leo Bearman Sr. Inn of Court (2018)


  • The University of Memphis, Cecil H. Humphreys School of Law, J.D., 2016, summa cum laude
    • University of Memphis Law Review – Senior Notes Editor
  • Mississippi State University, B.S. in Psychology, 2013, summa cum laude


  • Tennessee, 2016
  • U.S. District Court for the Western District of Tennessee, 2017

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