TBI Injury Claims
We investigate traumatic brain injury claims, identify responsible parties, and pursue compensation for medical care, lost income, pain, and long-term effects.
After a traumatic brain injury or concussion, medical needs, lost income, and long-term consequences can quickly become overwhelming. Marker Law provides focused personal injury representation for Illinois clients, investigating liability, documenting the full impact of the injury, and pursuing compensation from insurance companies and responsible parties. With direct attorney attention and no upfront costs unless compensation is recovered, you do not have to face the process alone.

Focused legal support for traumatic brain injuries, concussions, and serious injury claims caused by negligence.
We investigate traumatic brain injury claims, identify responsible parties, and pursue compensation for medical care, lost income, pain, and long-term effects.
Even a concussion can create meaningful symptoms and disruption. We help document the injury, establish liability, and respond to insurance company challenges.
For life-altering brain injuries, we pursue damages tied to ongoing medical needs, reduced earning capacity, disability, pain, and loss of normal life.
Brain injuries may affect memory, concentration, work capacity, relationships, and daily life even when symptoms are not immediately visible. Marker Law examines medical records, accident evidence, lost income, and the injury’s broader consequences to build a well-supported claim. The firm brings more than 25 years of Chicagoland litigation experience and insight into defense strategies while providing direct attorney attention throughout your case.

Marker Law helps injured people understand their rights and pursue fair compensation with personal attention.
You receive focused representation, clear communication, and an advocate who understands injury litigation from both sides.
Communicate directly with attorney Jason Marker rather than being passed between layers of a large firm.
Former defense-side experience helps the firm anticipate insurance tactics and challenge unfair claim positions.
A lifelong Naperville resident brings deep familiarity with Chicagoland courts, communities, and injury claims.
The firm works on a contingency fee basis, so attorney fees are paid only if compensation is recovered.
Experienced legal professionals provide attentive support for injured clients and their families.

Attorney / Owner
Jason Marker is a personal injury and workers' compensation attorney with over 25 years of litigation experience serving the Chicagoland area. As the founder and owner of Marker Law, LLC, Jason built his practice on the conviction that hardworking people deserve an advocate who understands both sides of injury litigation. He began his career clerking in the City of Chicago's Torts Division and spent three years on the defense side representing employers and insurance carriers before transitioning exclusively to plaintiff advocacy. A lifelong Naperville resident, Jason earned his J.D. from The John Marshall Law School in 2000. He holds an AV Preeminent rating from Martindale-Hubbell, has been recognized by Super Lawyers, and ensures every client receives direct, personal attorney attention throughout their case.

Senior Paralegal
Marisol Castillo is the Senior Paralegal at Marker Law, LLC, bringing over 18 years of dedicated experience in workers' compensation law. Fluent in both English and Spanish, Marisol is deeply committed to serving immigrant families and underserved communities, a passion inspired by witnessing the language barriers her own mother faced. She approaches every client interaction with efficiency, compassion, and a strong work ethic, ensuring that each individual receives attentive and informed support throughout the legal process. Marisol's advocacy extends beyond the office, rooted in a personal mission to build awareness and access for those who need it most. Her nurturing dedication is further shaped by her role as a devoted mother to her two daughters.

Paralegal
Liz Ruiz is a paralegal at Marker Law, LLC, with nearly two decades of experience in the injury law field dating back to 2006. She has developed extensive expertise handling a wide range of cases, including personal injury, medical malpractice, and workers' compensation matters. Liz's broad background across multiple practice areas equips her to provide thorough and knowledgeable support to clients navigating complex legal processes. Her long-standing commitment to the field reflects a genuine dedication to helping injured individuals pursue the justice and compensation they deserve. As part of the Marker Law team, Liz plays an integral role in ensuring every case is managed with precision, care, and professionalism from start to finish.
There is no reliable average settlement for a traumatic brain injury because value depends on factors such as medical expenses, lost wages, future earning capacity, symptom severity, permanency, pain and suffering, and the available evidence of liability. Insurance coverage and comparative fault may also affect recovery. A case evaluation should consider both current harm and the injury’s potential long-term effects.
Speak with Marker Law about your injury and legal options.
Highest peer rating for legal ability and ethical standards.
Licensed since 2000, as stated by Marker Law.
Selected by peers in the Chicagoland area.
Named in the company’s awards and recognitions.
Listed in the company’s awards and recognitions.
Tell us what happened and receive guidance about your potential legal options.
For immediate assistance, feel free to give us a direct call at 331-INJURED. You can also send us a quick email at jmarker@marker-law.com.
For immediate assistance, feel free to give us a direct call at 331-INJURED. You can also send us a quick email at jmarker@marker-law.com.