Personal Injury
Comprehensive representation for injuries caused by negligence, including investigation, insurance negotiations, medical damages, lost wages, pain and suffering, and future losses.
If you have been injured because of someone else’s negligence, Marker Law provides focused legal representation and compassionate guidance. Our team handles car crashes, truck accidents, workplace injuries, premises accidents, catastrophic injuries, and wrongful death claims. With more than 25 years of Chicagoland litigation experience, we help Illinois injury victims understand their rights and pursue fair compensation without upfront legal fees.

Focused legal representation for injury victims and families pursuing compensation throughout Illinois.
Comprehensive representation for injuries caused by negligence, including investigation, insurance negotiations, medical damages, lost wages, pain and suffering, and future losses.
Legal support after Illinois car accidents, including evidence gathering, liability analysis, insurance negotiations, and pursuit of compensation for medical bills, lost wages, property damage, and pain and suffering.
Representation in commercial and delivery truck cases involving driver fatigue, distraction, training, maintenance, or other factors, with investigation of logs, black-box data, and maintenance records.
Guidance for workers injured on the job, including communication with insurance carriers, medical referrals, workers’ compensation claims, and third-party claims when applicable.
Representation for construction workers pursuing workers’ compensation and potential third-party claims involving contractors, property owners, equipment manufacturers, or other liable parties.
Compassionate legal representation for families pursuing claims after a loved one’s death caused by negligence, including compensation for funeral expenses, financial support, and loss of companionship.
An injury can affect your health, income, and family long after the incident. Marker Law investigates the facts, identifies responsible parties, handles communications with insurance companies, and builds claims for economic and noneconomic damages. For Rockford-area clients and others across Illinois, the firm offers a free initial consultation and contingency-fee representation, so there are no upfront attorney fees.

Marker Law combines defense-side insight, direct attorney access, and persistent advocacy for injured clients.
A boutique injury firm built around direct attention, honest communication, and determined representation.
More than 25 years of Chicagoland litigation experience serving injured people and Illinois workers.
Former defense-side experience helps the firm understand how insurers and employers approach injury claims.
Clients receive direct communication with experienced attorney Jason Marker throughout their case.
Clients pay attorney fees only if compensation is recovered under the contingency-fee arrangement.
Experienced legal professionals providing personal attention to injured clients.

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.
Marker Law handles personal injury matters involving car accidents, truck and commercial vehicle crashes, pedestrian and motorcycle accidents, premises accidents, slip and falls, workplace and construction injuries, catastrophic injuries, and wrongful death. The firm evaluates the facts, investigates liability, communicates with insurers, and pursues damages such as medical expenses, lost wages, future earning capacity, pain and suffering, and other losses available under Illinois law.
Speak with Marker Law about your situation and legal options.
Highest peer rating for legal ability and ethical standards.
Selected by peers in the Chicagoland area.
Named Best of Naperville 2024.
Recognition listed among company awards.
5.0-star rating with 35 reviews.
Complete the form to request a free consultation with Marker Law about your potential 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.