Abby Twenter is a litigation associate at Armstrong Teasdale, where she handles a wide range of disputes for clients. She has experience working on cases at all stages of litigation, including trial and arbitration preparation, motions practice and appeals. Abby’s prior experience as a law clerk at the Supreme Court of Missouri and the U.S. District Court for the Eastern District of Missouri has given her valuable exposure to a diverse group of cases at both state and federal levels, and knowledge as to local rules and customs.

Abby has counseled numerous clients on appellate procedure and has briefed appeals in both state and federal courts. She is also experienced in litigating copyright disputes, trademark infringement claims, and matters involving the Digital Millennium Copyright Act (DMCA) and its application to the latest issues involving privacy and technology. She has represented internet service providers, large corporations and family-run businesses in complex commercial litigation, including contract disputes and tort claims.

Prior to joining the firm, Abby served as a law clerk to Judge E. Richard Webber of the U.S. District Court for the Eastern District of Missouri and Judge Laura Denvir Stith of the Supreme Court of Missouri. Abby is actively engaged in pro bono and community service work and currently serves on the board for the Women Lawyer’s Association of Greater St. Louis.


  • University of Illinois College of Law  (J.D., magna cum laude, 2016)
    • Pro bono notation
    • University of Illinois Law Review, Editor
  • Truman State University  (B.A., magna cum laude, 2012)
    • Political Science
    • Phi Beta Kappa


  • Missouri
  • U.S. District Court, Eastern District of Missouri
  • U.S. Court of Appeals, Seventh Circuit

Professional Activities

  • Women Lawyers' Association of Greater St. Louis (Board Member)
  • Missouri Bar Leadership Academy (2017-2018)
Contact Us
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