Jack M. Terschluse is an associate in the Corporate Department of Lewis Rice. His practice focuses on general business and transactional law, including mergers and acquisitions, startups, entity creation, and real estate matters. He also counsels businesses and organizations on regulatory compliance and government solutions. Additionally, Jack helps companies mitigate the risks involved with cybersecurity and data privacy, including general compliance, data breaches, and collecting and sharing personal data, which has become routine for many companies around the world. During his final year of law school, Jack served as a senior editor for the Washington University Law Review and also as the head teaching assistant for the legal practice course.

In addition to his involvement in various St. Louis young professionals groups, Jack advocates and fundraises for type one diabetes research. He spent two summers with Lewis Rice as a summer associate.

Practice Areas


  • Washington University in St. Louis School of Law (J.D., 2019)
    • Academic Excellence Award, Dean’s List; CALI Awards in Civil Procedure, Criminal Law, and Financial Accounting for Lawyers
    • Senior editor, Washington University Law Review
    • Head teaching assistant, Legal Practice
    • Student attorney, Children's Rights Clinic
  • Washington University in St. Louis (B.A., 2016)
    • Political Science, minors in History and Leadership
    • Dean's List
    • Associate Justice, Student Constitutional Council
    • Executive Officer, Alpha Delta Phi Fraternity


  • Missouri Bar
  • Illinois Bar

Charitable & Civic Activities

  • Co-founder, Young Professionals of the Juvenile Diabetes Research Foundation, Greater Missouri and Southern Illinois Chapter
  • Vice President - Nominations, St. Louis Zoo Young Professionals Advisory Board
  • President, Catholic Charities of St. Louis Young Professionals
  • Chairman and Founder, Penpals United


  • CIPP/US (Certified Information Privacy Professional - United States)