Atty. Brent Sumner

Atty. Brent Sumner

Brent A. Sumner is the Managing Partner at Sumner Law Group, LLC.

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Medical Malpractice Law - Plaintiffs & More Attorney · Serving St. Louis, MO

Profile Summary

About Brent Sumner at a Glance

Brent Sumner is a medical malpractice, personal injury, and product liability attorney based in St. Louis, Missouri, practicing at Sumner Law Group LLC. Educated at Saint Louis University (—, 2006) and University of Missouri (B.S. in Biochemistry, 2002). Recognitions include Best Lawyers in America — Medical Malpractice Law - Plaintiffs (2026), Best Lawyers in America — Personal Injury Litigation - Plaintiffs (2026), and Best Lawyers in America — Product Liability Litigation - Plaintiffs (2026). Serves clients in St. Louis, MO and the surrounding metropolitan area.

Verified attorney profile · Updated October 2026

About Brent Sumner

  • Brent A. Sumner is the Managing Partner at Sumner Law Group, LLC. He focuses his practice exclusively on cases that involve serious personal injuries
  • Over the years, he has successfully represented thousands of individuals and families, recovering millions of dollars in compensation for injured accident victims
  • As an experienced litigator, Brent stresses how important it is to have an attorney who is prepared to go to trial in a serious personal injury case
  • Insurance companies need to know that an accident victim’s attorney will not back down from a fight in court, he says
  • Brent has earned a reputation throughout Missouri as a top-notch trial lawyer
  • He is honored to be part of the National Trial Lawyers Top 100 Personal Injury Lawyers
  • His success on behalf of his clients also earned him a spot in the Multi-Million Dollar Advocates Forum and the Million Dollar Advocates Forum, a prestigious group that includes fewer than 1% of all lawyers in the United States

Practice Areas Explained

Brent Sumner's Areas of Legal Practice

Each practice area below reflects the types of cases Brent Sumner handles, with a practical overview of what that area of law involves and how it may apply to your situation in St. Louis.

Medical Malpractice in St. Louis

Medical malpractice lawyers represent patients harmed by negligent doctors, hospitals, and other providers. Free case review, no fee unless you win.

Brent Sumner is one of 48,593 medical malpractice attorneys indexed nationally. Browse medical malpractice attorneys in Missouri →

Personal Injury in St. Louis

Personal injury attorneys help accident victims recover compensation for medical bills, lost wages, and pain & suffering. Most work on contingency — no fee unless you win.

Brent Sumner is one of 262,557 personal injury attorneys indexed nationally. Browse personal injury attorneys in Missouri →

Product Liability in St. Louis

Brent Sumner is one of 65,610 product liability attorneys indexed nationally. Browse product liability attorneys in Missouri →

Jurisdictional Context

Why Local Counsel Matters in St. Louis

Practicing law in Missouri. Legal matters in Missouri are governed by state-specific rules of civil and criminal procedure, statutes of limitations, and substantive law. Cases originating in St. Louis are typically filed in the local municipal court or the appropriate Missouri state district court, depending on subject matter and amount in controversy. An attorney licensed in Missouri brings working knowledge of local procedural deadlines, judicial practices in this venue, and the substantive law that applies to cases brought here. Out-of-state attorneys generally cannot represent clients in Missouri courts without local counsel or pro hac vice admission.

St. Louis Courts and Legal Process

Choosing a St. Louis-based attorney means your counsel already knows the local docketing timelines, preferred filing formats, and how individual judges typically rule on procedural motions — details that only come from practicing in this jurisdiction day after day. That local familiarity can translate to better strategy, faster filings, and fewer costly surprises.

Looking for additional Missouri attorneys? Browse all attorneys in St. Louis or all attorneys in Missouri.

Frequently Asked

Common Questions About Brent Sumner

Where is Brent Sumner's law office located?
Brent Sumner's law practice is located in St. Louis, Missouri. The firm is Sumner Law Group LLC. You can contact the office directly through this profile page.
What practice areas does Brent Sumner handle?
Brent Sumner focuses on medical malpractice, personal injury, product liability. Each practice area listed reflects experience handling cases of that type in Missouri.
Where did Brent Sumner go to law school?
Brent Sumner earned their education at (—, 2006); (B.S. in Biochemistry, 2002).
How can I contact Brent Sumner for a consultation?
You can contact Brent Sumner directly through this profile page. Click "Ask the Attorney" to submit a question, or "Schedule a Consultation" to book a meeting. Most claimed-profile attorneys respond within one business day.
What awards or recognition has Brent Sumner received?
Brent Sumner's notable recognition includes: Best Lawyers in America — Medical Malpractice Law - Plaintiffs; Best Lawyers in America — Personal Injury Litigation - Plaintiffs; Best Lawyers in America — Product Liability Litigation - Plaintiffs.

Professional Profile

Why Clients in St. Louis Choose Brent Sumner

Selecting an attorney is one of the most consequential decisions you can make when a legal matter arises. Below are the core qualities that distinguish Brent Sumner's practice in the field of medical malpractice, personal injury, and product liability.

Broad Practice Area Coverage

Covering medical malpractice, personal injury, and product liability, Brent Sumner can address the full spectrum of a client's legal needs without requiring referrals to separate specialists for each issue.

Local Presence in St. Louis

A St. Louis-based practice means Brent Sumner attends hearings in the same courthouses, knows the local clerks, and understands the unwritten scheduling norms that affect every case filed here.

Case Types

Common Legal Issues Brent Sumner Handles in St. Louis

Below is a representative sample of the types of matters Brent Sumner has experience with under Missouri law. If your situation involves one of these case categories, this attorney may be well positioned to help you understand your options.

Surgical error claims
Medical Malpractice
Misdiagnosis and delayed diagnosis
Medical Malpractice
Birth injury lawsuits
Medical Malpractice
Hospital negligence
Medical Malpractice
Car accident injury claims
Personal Injury
Slip and fall cases
Personal Injury
Wrongful death suits
Personal Injury
Workers' compensation appeals
Personal Injury

This list is illustrative, not exhaustive. Contact Brent Sumner directly to discuss the specifics of your situation.

Search Reference

How People Find Brent Sumner Online

Prospective clients searching for legal help in St. Louis commonly use a combination of the attorney's name and their specific legal need. The following search terms frequently lead people to this profile and to attorneys like Brent Sumner.

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If any of the above matches what you searched for, you've found the right profile. Use the contact options at the top of this page to get in touch with Brent Sumner directly.

Education & Law School Background

—
Saint Louis University
- 2006
B.S. in Biochemistry
University of Missouri
- 2002

Awards & Professional Honors

Best Lawyers in America — Medical Malpractice Law - Plaintiffs
- 2026
Best Lawyers in America — Personal Injury Litigation - Plaintiffs
- 2026
Best Lawyers in America — Product Liability Litigation - Plaintiffs
- 2026

Client Reviews & Ratings — Brent Sumner

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