GretchenThumbD: 314.732.0728

701 Market Street, Suite 800
St. Louis, MO 63101


Gretchen Garrison graduated from the University of Missouri in 1982 with a degree in Hospital Administration. She earned her law degree from the University of Missouri-Kansas City in 1986, where she served as managing editor of the UMKC Law Review and on the Moot Court Board.

She is admitted to practice before all Missouri state courts, the U.S. District Court for the Eastern District of Missouri and the Eighth Circuit Court of Appeals. She has appeared before every appellate court in the State of Missouri, as well as the United States Supreme Court, in over 50 appeals.

She is a member of The Missouri Bar, the Bar Association of Metropolitan St. Louis, Women Lawyers’ Association of Greater St. Louis, and American Bar Association. She is a former chairperson of the Appellate Practice Committee of the Bar Association of Metropolitan St. Louis and served on the Missouri Supreme Court Electronic Discovery Committee.

Prior to joining Gray, Ritter & Graham, Gretchen was a partner in one of the region’s largest law firms, where her practice concentrated on commercial litigation, health care, and appeals. She has served as Associate General Counsel for a large health insurance company and as General Counsel for the Missouri Department of Health. She also served as primary appellate counsel to the Missouri Department of Revenue, as well as Deputy Appellate Counsel for the Missouri Attorney General’s Office, where she was responsible for appellate policy and argument on behalf of state agencies.

Ms. Garrison’s primary practice areas are commercial litigation, complex litigation, and appellate law.  She also has expertise in regulatory/administrative law, health care, and taxation.  In her commercial practice, Ms. Garrison represents individuals and businesses in a wide variety of disputes including negligence, fraud, breach of fiduciary duty, shareholder rights, tortious interference, trespass, and breach of contract.  She has successfully represented parties in large-stakes litigation involving acquisitions and mergers, telecommunications, property rights, banking, health care, insurance, medical equipment, license agreements, government programs, and other business areas.  She has also represented thousands of consumers from Missouri and other states in class actions and other complex litigation against large corporations, including Bayer Corp., AT&T, Inc., Aurora Dairy Corp., Stoneville Pedigreed Seed Company, and Merck & Co., culminating in significant recoveries.  She was trial counsel in three trials having bellwether status in multi-district litigation and defending each plaintiff’s verdict as lead appellate counsel prior to settlement.

Gretchen is listed in The Best Lawyers in America (a Woodward White company) for Appellate Law, and has been selected to Missouri & Kansas Super Lawyers (a Thomson Reuters company) since 2010, in the area of Business Litigation.

Areas of Practice

  • Commercial Litigation, Complex Litigation
  • Appellate Law

Bar Admissions

  • Missouri
  • U.S. District Court Eastern District of Missouri
  • U.S. Court of Appeals 8th Circuit


  • University of Missouri-Kansas City School of Law, Kansas City, Missouri
    • J.D. – 1986
    • Law Review: University of Missouri-Kansas City Law Review, Managing Editor; Moot Court Board
  • University of Missouri, Columbia, Missouri
    • B.S. – 1982
    • Honors: Health Administration

Published Works

  • Rules of Appellate Brief Writing, St. Louis Bar Journal, Summer, 2009
  • House Bill 355-Missouri’s New Managed Care Legislation;, 66 UMKC L. Rev. 775, 1998
  • Merger of Comparative Fault and Strict Liability in Missouri, 54 University of Missouri-Kansas City Law Review 243, 1986
  • Missouri Comparative Faulty Treatise – Theory and Practice, University of Missouri-Kansas City/CLE (1986, Supp. 1989 & 1993)
  • Missouri Products Liability Handbook, Chapter 42 – Indemnity, Contribution and Settlement (Co-Author), University of Missouri-Kansas City/CLE, 1988


  • Frequent Speaker, Health Care Law
  • Mastering Appellate Advocacy, St. Louis Health Care Seminar
  • Speaker, UMKC/CLE Year-End Review of the Law
  • Kansas City Health Care Law Seminar
  • Adjunct Professor, Administrative Law, Avila College

Honors and Awards

  • Best Lawyers in America (a Woodward White Company), 2009 – Present
  • Best Lawyers in St. Louis, St. Louis Magazine, 2009 – Present
  • Missouri & Kansas Super Lawyers (a Thomston Reuter’s Company), 2010 – Present

Professional Associations and Memberships

  • The Missouri Bar
  • The Bar Association of Metropolitan St. Louis
  • Women Lawyers’ Association of Greater St. Louis
  • American Bar Association
  • Bar Association of Metropolitan St. Louis, Chair Person, Appellate Practice Committee
  • Mid-America Transplant Services, Board of Directors
  • Bar Association of Metropolitan St. Louis
  • Mid-America Transplant Services, Governance Committee Member
  • Mid-America Transplant Services, Conflicts Committee Chairperson


  • French


  • Delta Theta Phi