Mark Johnson represents people injured in car crashes, falls, and other accidents caused by the fault of others. With experience litigating car crashes, slip and falls, catastrophic injuries, wrongful death, and construction negligence, Mark has successfully handled countless cases resulting in multiple six- and seven-figure settlements for his clients. Licensed to practice in Missouri, Illinois, and Louisiana, Mark brings a unique tri-state perspective to personal injury law.
⚖️ Multiple Six & Seven-Figure Settlements
⚖️️ Licensed in 3 States – Missouri, Illinois, Louisiana
“When someone is injured because of another’s negligence, they deserve an advocate who will fight for full and fair compensation. That’s what I do every day.”
Mark C. Johnson
Personal Injury Attorney
Career at a Glance
Mark brings a decade of experience fighting for injury victims across three states. His track record includes multiple six- and seven-figure settlements for clients harmed in accidents, falls, and other incidents caused by negligence.
6 & 7
Figure Settlements
Multiple significant results for injured clients
3
State Bar Admissions
Licensed in Missouri, Illinois & Louisiana
10
Years of Experience
Personal Injury Law
14+
Practice Areas
Comprehensive personal injury coverage
We Don’t Just Take On Cases—We Take On Causes.
Whether you’ve been injured in a car crash, suffered a fall on someone else’s property, or lost a loved one due to negligence, Mark Johnson doesn’t just fight for compensation—he fights to ensure what happened to you never happens to another family. If you’ve been hurt because of someone else’s fault, let’s discuss how your case could create lasting change.
Peer Recognition & Credentials
Bar Admissions
Louisiana – 2015
Missouri – 2017
Illinois – 2018
Professional Associations
Bar Association of Metropolitan St. Louis (BAMSL)
Missouri Association of Trial Attorneys (MATA)
Illinois Trial Lawyers Association (ITLA)
Mark’s Practice Areas
Mark represents people injured in car crashes, falls, and other types of injury caused by the fault of others. His experience spans motor vehicle accidents, premises liability, catastrophic injuries, wrongful death, and construction negligence.
Motor Vehicle Accidents
Car crashes can result in devastating injuries that affect every aspect of your life. Mark has extensive experience representing victims of car, truck, motorcycle, pedestrian, and bicycle accidents—fighting insurance companies to secure the compensation you deserve for medical bills, lost wages, and pain and suffering.
Property owners have a duty to maintain safe conditions for visitors. When they fail—whether through wet floors, broken stairs, inadequate lighting, or other hazards—Mark holds them accountable for the injuries that result from their negligence.
Traumatic brain injuries, spinal cord damage, and other catastrophic injuries require extensive medical care and can permanently alter your life. Mark fights for the full compensation needed to cover lifetime care, lost earning capacity, and the profound impact on you and your family.
When negligence takes a loved one, families deserve answers and accountability. Mark helps surviving family members pursue wrongful death claims to recover compensation for funeral expenses, lost income, and the immeasurable loss of companionship and guidance.
Construction sites are among the most dangerous workplaces. When safety regulations are ignored and workers are injured, Mark helps victims navigate the complex intersection of workers’ compensation and third-party liability claims to maximize their recovery.
Insurance companies often prioritize their profits over fair compensation for injury victims. Mark understands their tactics and fights to ensure you receive the full value of your claim—not just a quick, lowball settlement.
Mark began his journey at LSU, developing an interest in law and public service that would shape his career path.
Office of Governor Bobby Jindal
Government Service
Prior to law school, Mark worked for Louisiana Governor Bobby Jindal, gaining valuable experience in public service and policy that informs his advocacy for injury victims today.
LSU Paul M. Hebert Law Center
Juris Doctor & Civil Law Certificate – 2015
Mark earned his J.D. and Civil Law Certificate from LSU Law School in Baton Rouge, Louisiana—a program that combines common law training with civil law expertise rooted in Louisiana’s unique legal tradition.
OnderLaw
Personal Injury Attorney
Mark brings a decade of experience to OnderLaw, where he represents people injured in car crashes, falls, and other accidents. His track record includes multiple six- and seven-figure settlements for clients across Missouri, Illinois, and Louisiana.
When Your Case Becomes Our Cause
Mark Johnson and the OnderLaw team don’t just fight for compensation—we fight to ensure what happened to you never happens to another family. If you’ve been injured because of someone else’s negligence, let’s discuss how your case could create lasting change.
