Workers' Compensation
We represent injured employees pursuing workers’ compensation benefits for medical bills, lost wages, workplace injuries, and claims that have been denied or delayed by insurance carriers.
When a workplace injury disrupts your health, income, and future, Marker Law provides focused workers’ compensation representation for Illinois employees. From denied claims and delayed benefits to construction injuries and third-party claims, our team works to protect your rights and pursue available compensation. With deep Chicagoland experience, we provide direct guidance during a difficult time.

Focused legal support for Illinois workers facing workplace injuries, denied benefits, and related third-party claims.
We represent injured employees pursuing workers’ compensation benefits for medical bills, lost wages, workplace injuries, and claims that have been denied or delayed by insurance carriers.
Construction workers can receive representation for job-site injuries, workers’ compensation benefits, and potential third-party claims involving contractors, property owners, equipment manufacturers, or other responsible parties.
Marker Law assists unionized and commercial workers injured on the job, coordinating medical referrals, communicating with insurance teams, and pursuing available workers’ compensation and third-party recovery.
A workplace injury can affect your ability to work, pay medical bills, and support your household. Marker Law handles communications with insurance carriers, helps pursue workers’ compensation benefits, and evaluates whether a third-party claim may provide additional recovery. Serving Illinois workers from its Naperville base, the firm brings more than 25 years of Chicagoland litigation experience and direct attorney attention to each case.

Learn how focused preparation and persistent advocacy can support injured workers seeking fair compensation.
Marker Law combines defense-side insight with direct, focused advocacy for injured Illinois workers.
Jason Marker understands how employers and insurance carriers approach claims from prior defense-side experience.
Clients receive direct communication with an experienced attorney throughout their case and legal process.
The firm works on a contingency fee basis, with no recovery, no fee, and no upfront costs.
More than 25 years of Chicagoland litigation experience supports workers across Illinois communities.
Experienced legal professionals support injured workers with personal attention and compassion.

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.
Illinois workers’ compensation generally provides benefits for employees who suffer work-related injuries or illnesses, including medical care and wage-related benefits when eligibility requirements are met. Claims may involve reporting the injury, obtaining appropriate treatment, documenting work restrictions, and addressing disputes with an employer or insurance carrier. A lawyer can also evaluate whether a separate third-party claim may apply.
Speak with Marker Law about your workplace injury and legal options.
Marker Law serves injured workers across Illinois, including Chicagoland communities and surrounding counties.
Illinois
Service Area
Available 24/7
Availability
25+ Years
Local Experience
Contact Marker Law to discuss your Illinois workplace injury claim.
Highest peer rating for legal ability and ethical standards.
Illinois Bar Association membership and licensing entry.
Membership in the Workers' Compensation Lawyers Association.
Selected as Super Lawyers by peers in Chicagoland.
Best of Naperville recognition listed by the firm.
Contact Marker Law to request a free initial consultation about your workers’ compensation claim.
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.