Margaret M.Toohey


Cleveland + 1.216.586.7116

Margaret Toohey practices in state and federal courts throughout the country and before arbitration tribunals in the United States and abroad. She frequently collaborates with experts and foreign co-counsel to get results in complex matters requiring highly technical evidence and nuanced legal arguments.

Margaret has advocated for clients on both the plaintiffs' and defense side in commercial disputes involving environmental contamination, mass torts, breach of contract claims, and alleged fraud and trade secret misappropriation. Representative industries include luxury cosmetics, prescription opioids, steel, excess liability insurance, performance materials, and lottery tickets. Margaret has also represented public companies and their directors in expedited actions in Delaware Chancery Court and routinely counsels clients before litigation arises with an eye to avoiding disruptive lawsuits.

Margaret serves clients by overseeing day-to-day case development and administration, managing fact discovery, working with experts, drafting briefs, taking depositions, prepping witnesses, and preparing cases for oral argument, mediation, arbitration, and trial. She has conducted direct and cross-examination of witnesses and served as the first-chair trial lawyer representing a gay Venezuelan political dissident in federal immigration court. Margaret's recent victories on behalf of clients include a zero-dollar settlement in a cybersecurity-related arbitration and a dismissal of fraud and other claims after just three weeks of litigation.

Margaret is co-editor for the ABA Litigation Section's Ethics and Professionalism Committee and has been cited in multiple legal ethics articles and presentations. She is an author of the Ohio tort law chapter in Tort Law Desk Reference: A Fifty State Compendium.


  • Commercial sterilization company defends against multiple personal injury lawsuitsJones Day serves as lead counsel for a commercial sterilization company in multiple personal injury cases.
  • Commercial sterilization company defends against putative class actionJones Day is representing a commercial sterilization company in a putative class action seeking medical monitoring damages from Ethylene Oxide exposure at a facility formerly owned by the client.
  • Ferro Corporation sells its global Tile Coatings Business to Lone Star Funds for $460 millionJones Day advised Ferro Corporation, a leading global supplier of technology-based performance materials, in the sale of its global Tile Coatings Business to Pigments Spain, S.L., a portfolio company of Lone Star Funds, for $460 million in cash, with potential earnout payments of up to $32 million in cash based on the performance of the business pre-closing, subject to customary adjustments.
  • Yazaki successfully resolves automaker lawsuit alleging price-fixing and bid riggingJones Day represented Yazaki Corporation and Yazaki North America, Inc. in successfully resolving a civil antitrust lawsuit brought by an automaker following Jones Day's filing of motions for summary judgment and to exclude the plaintiff's sole expert witness.
  • Additional Publications

    • December 20, 2020
      Ethics Issues for the Unelected Lawyer Spouse, American Bar Association
    • December 10, 2020
      Formal Opinion 494: Guidance about Personal Relationships, American Bar Association
    • April 8, 2020
      Five Pointers for Practicing in a Pandemic, American Bar Association
    • April 8, 2020
      Maintaining Remote Control: Six Common-Sense Tips for Telelawyers to Reduce Risk, American Bar Association
    • April 1, 2020
      USA: Does a federal price gouging law even make sense— and, if so, what should it look like?, Concurrences N° 4-2020
    • March 18, 2019
      Formal Opinion 485 Shows No Love to Judges Who Refuse to Perform Same-Sex Marriages, American Bar Association
    • March 18, 2019
      Attorney Professionalism: Ever More Important in the Fake News Era, American Bar Association

    Publications Prior to Jones Day


    Preventing Inadvertent Misbehavior in Mediation: A Guide to Common Ethics and Professionalism Issues, Dispute Resolution Journal, Vol. 70, No. 2.