Personal Injury
Get a thorough review of negligence claims involving crashes, falls, dog bites, catastrophic injuries, and more, with guidance on liability, damages, medical bills, lost wages, and possible compensation.
After an accident or workplace injury, one call can clarify your rights, deadlines, and next steps. Marker Law offers a free case review backed by 25+ years of Illinois injury litigation experience, direct attorney attention, and no upfront costs. Tell us what happened, and our Naperville-based team will help you understand the strongest path forward.

Review options for serious injury, workplace, and accident claims with focused legal guidance from day one.
Get a thorough review of negligence claims involving crashes, falls, dog bites, catastrophic injuries, and more, with guidance on liability, damages, medical bills, lost wages, and possible compensation.
Discuss your Illinois car accident claim, including medical treatment, insurance offers, fault disputes, pain and suffering, property damage, and settlement factors that may affect case value.
Review denied, delayed, or complicated workers’ compensation claims, including medical benefits, lost wages, third-party liability, subrogation issues, and options available to injured Illinois workers.
Evaluate delivery truck, semi-truck, and commercial vehicle accident claims involving driver logs, black-box data, maintenance records, contractor relationships, and multiple potentially liable parties.
Talk through injuries caused by unsafe property conditions, including evidence preservation, notice issues, property owner negligence, medical documentation, and damages after a preventable fall.
Receive compassionate guidance after a fatal accident, including how Illinois wrongful death claims may address funeral expenses, financial support, companionship losses, and accountability for negligence.

Call or send a message describing your accident, work injury, or loss. Marker Law is available 24/7, so injured people in Naperville, DuPage County, and surrounding Illinois communities can start getting answers quickly.
Real guidance, serious preparation, and committed representation for injured Illinois clients and families.
A boutique injury firm built around direct access, honest guidance, and determined advocacy.
Decades of Chicagoland litigation experience guide every case review and legal strategy.
Clients receive personal attorney attention from Jason Marker, not a distant case manager.
Former defense-side experience helps anticipate insurance tactics and counter low settlement offers.
Free consultations and contingency fees mean you pay only after financial recovery.
Experienced advocates serving injured Illinois clients with care.

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.
During a free case review, Marker Law listens to what happened, asks about your injuries, treatment, accident reports, insurance communication, and employment impact, then explains possible legal options. The review is designed to identify urgent steps, preserve evidence, clarify deadlines, and help you understand whether a personal injury, workers’ compensation, or third-party claim may apply.
Speak with Marker Law for clear guidance before you decide.
Highest peer rating for legal ability and ethics
Peer-selected recognition for Chicagoland legal excellence
Local recognition from the Naperville community
Share a few details about your injury, accident, or work claim. Marker Law will review your information, explain possible next steps, and help you understand whether legal action may protect your recovery.
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.