Amy Collignon Gunn

Amy Collignon Gunn


Gunn | Slater

Recognized since 2009

Clayton, Missouri

Practice Areas

Mass Tort Litigation / Class Actions - Plaintiffs

Medical Malpractice Law - Plaintiffs

Personal Injury Litigation - Plaintiffs

Product Liability Litigation - Plaintiffs

Lawyer of the Year Badge - 2026 - Product Liability Litigation - Plaintiffs
Lawyer of the Year Badge - 2026 - Product Liability Litigation - Plaintiffs Lawyer of the Year Badge - 2022 - Personal Injury Litigation - Plaintiffs Lawyer of the Year Badge - 2020 - Product Liability Litigation - Plaintiffs Lawyer of the Year Badge - 2018 - Medical Malpractice Law - Plaintiffs Lawyer of the Year Badge - 2017 - Mass Tort Litigation / Class Actions - Plaintiffs
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My focus for more than 25 years has been to advocate fearlessly for clients who have been injured because of the negligence and recklessness of others. Whether you have been hurt by a healthcare provider’s error, a driver’s wrongful actions, or a corporation’s decision to sell a defective product, I have the expertise and insight to right that wrong. My clients hire me to take on their problems and solve them.

Having tried nearly 50 cases to jury verdict brings an intensity and focus to my work that is reflected in the exceptional preparation and great care I take with every case and client. Opposing counsel and their clients know which attorneys try cases, and which do not. That knowledge is commonly reflected in higher settlement offers in cases where defendants know the attorneys are not too intimidated to show up at trial. I am not afraid, and I will always show up.

My motto is simple: “I’m nice, until I’m provoked.”

In practice, if my opponents treat me, my team, and our clients with respect, they will happily get the same in return. If that practice ever changes, I will forever maintain my composure, but I will not tolerate incivility, and there will be measurable consequences. Everyone deserves to be treated with dignity, and I will ensure that result.

I am not satisfied until justice is served—whether that takes weeks or years, and whether it happens through a settlement or a jury trial. I’m a serious person with serious responsibilities that I do not take lightly. I will guide you through the complexities of the legal proceedings and lead you to a resolution that will enable you or your loved one to move forward. Put simply, I will fight tirelessly for you and earn your trust.

Location
  • The Sevens Building
    7777 Bonhomme Avenue, Suite 1600
    Clayton, MO 63105
Languages
  • English
Education
  • Saint Louis University, J.D., graduated 1996
  • Transylvania University, BA, graduated 1993
Bar Admissions
  • Missouri, The Missouri Bar
  • Illinois, Illinois State Bar Association
Affiliations
  • Missouri Supreme Court Civil Rules Committee - Member
  • Women Lawyers' Association of Greater St. Louis - President, 2017-18
  • Women Lawyers' Association of Greater St. Louis - President-Elect, 2016-17
  • American Association for Justice - Member
  • American Bar Foundation - Member
  • Bar Association of Metropolitan St. Louis - Treasurer
  • Illinois Bar Association - Member
  • Lawyers Association of St. Louis - Member
  • Litigation Counsel of America - Member
  • Misouri Association of Trial Attorneys - Board Member
  • Missouri Bar Association - Member
  • St. Clair County Bar Association - Member
  • St. Louis County Bar Association - Member
  • Womens Laywer Association of Greater St. Louis - Member
Court Admissions
  • United States Court of Federal Claims
  • United States District Court for the Southern District of Illinois
  • United States District Court for the Central District of Illinois
  • United States District Court for the Eastern District of Missouri
  • United States Court of Appeals, Eighth Circuit

Lawyer of the Year Badge - 2026 - Product Liability Litigation - Plaintiffs Lawyer of the Year Badge - 2022 - Personal Injury Litigation - Plaintiffs Lawyer of the Year Badge - 2020 - Product Liability Litigation - Plaintiffs Lawyer of the Year Badge - 2018 - Medical Malpractice Law - Plaintiffs Lawyer of the Year Badge - 2017 - Mass Tort Litigation / Class Actions - Plaintiffs
Named "Lawyer of the Year" by Best Lawyers® for:
  • Product Liability Litigation - Plaintiffs, St. Louis (2026)
  • Personal Injury Litigation - Plaintiffs, St. Louis (2022)
  • Product Liability Litigation - Plaintiffs, St. Louis (2020)
  • Medical Malpractice Law - Plaintiffs, St. Louis (2018)
  • Mass Tort Litigation / Class Actions - Plaintiffs, St. Louis (2017)
Recognized in The Best Lawyers in America® 2026 for work in:
  • Mass Tort Litigation / Class Actions - Plaintiffs
  • Medical Malpractice Law - Plaintiffs
  • Personal Injury Litigation - Plaintiffs
  • Product Liability Litigation - Plaintiffs
Awards:
  • American Jurisprudence Award- Commercial Transactions, 1996
  • John C. Shepherd Professionalism Award, 2006
  • Lon O. Hocker Trial Lawyer Award, 2007
  • Fellow of the American Bar Foundation, 2007 to present
  • Kentucky Colonel, 2007 to present
  • Missouri and Kansas Super Lawyers, 2008-present
  • The Best Lawyers in America, Personal Injury, 2009-present
  • Women’s Justice Rising Star Award, 2009
  • Missouri and Kansas Super Lawyers, Top 50 Women, 2010 to present
  • The American Trial Lawyers Assoc., Top 100 Trial Lawyers, 2011
  • Member of the Inns of Court, 2011-2013
  • President’s Award, BAMSL, 2013
  • Tom Strong Award, MATA, 2013
  • Missouri Lawyers Weekly Influential Appellate Advocates Award 2018
  • Best Lawyers "Lawyer of the Year" for Medical Malpractice Law - Plaintiffs in St. Louis 2018
  • International Advisory Experts Award: Injury & Medical Malpractice Lawyer of the Year in Missouri, 2017
  • Missouri and Kansas Super Lawyers® Top 50 in St. Louis 2013-2018
  • Missouri and Kansas Super Lawyers® Top 100, 2013-2018
  • Missouri and Kansas Super Lawyers® Top 50 Women 2010-2018
  • 40 Under 40, St. Louis Business Journal, 2008
  • Up and Coming Lawyers, Missouri Lawyers Weekly, 2007
Additional Areas of Practice:
  • Personal Injury Litigation

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Dedicated to Its Clients: The Simon Law Firm, P.C.


by The Simon Law Firm

Client-focused litigation delivering multi-million dollar verdicts across personal injury and intellectual property law.

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