Lyons & Simmons, LLP

About Lyons & Simmons, LLP

Lyons & Simmons is a Dallas-based trial boutique founded in February 2020 by veteran Texas trial lawyers Michael Lyons and Chris Simmons, previously partners at Deans & Lyons. The firm concentrates on catastrophic personal injury, wrongful death, and product liability litigation in Texas and nationwide, and reports more than $1 billion in verdicts and settlements since 2023. It served as principal trial counsel in the 2023 Dallas crane-collapse litigation that produced an $860 million wrongful death verdict, and won the $109.5 million Rymers v. CPS Energy gas explosion verdict in 2025.

Proven verdicts and settlements from other Dallas firms

Aldous Law

$268.6 million (settled confidentially mid-deliberation) · Jury Awards $268 Million After Medical City Gave a 13-Year-Old Girl a Fatal Propofol Overdose

Proven verdicts (8) →•Medical Malpractice

Arnold & Itkin

$2.065 billion · Cobb County Jury Awards John Barnes $2.065 Billion in Roundup Cancer Trial

Proven verdicts (7) →•Product Liability

Dean Omar Branham Shirley, LLP

$966 million · The $966 Million Talc Verdict Against Johnson & Johnson for the Mesothelioma Death of Mae Moore, With the $950 Million Punitive Award Vacated by the Trial Judge in March 2026, Leaving a $16 Million Compensatory Judgment Headed for Cross-Appeals

Proven verdicts (5) →•Product Liability

Miller Weisbrod Olesky

$30.8 million · $30.8 Million Verdict Against Navistar for Concealing MaxxForce Engine Defects in 243 Trucks

Proven verdicts (5) →•Product Liability

Turley Law Firm

$119.6 million (verdict); $23.4 million (settlement) · Dallas Jury Awards $119.6 Million Against Catholic Diocese for Decades of Clergy Abuse and Cover-Up

Proven verdicts (5) →•Sexual Abuse