Marc J Zwillinger, Criminal Defense Attorney in Chicago, Illinois
Over 32 years of legal practice · focused on Criminal Defense, General, and IP
PartneratDentons US LLP
Chicago, IL
Practicing criminal defense in Chicago since 1994.
- 32+
- Years practicing
- 2
- Bar admissions
Practices in
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Quick answer
Marc J Zwillinger is a partner based in Chicago, IL. The practice focuses on Criminal Defense, General, and IP. Marc has over 32 years of legal experience. Currently practicing at Dentons US LLP.
- Based in
- Chicago, IL
- Experience
- over 32 years
- Known for
- Criminal Defense · General · IP
- Handles Criminal Defense, General, and IP matters from Chicago, IL.
- Over 32 years of practice as a licensed attorney.
About Marc J Zwillinger: Marc J Zwillinger is a partner based in Chicago, IL. The practice focuses on Criminal Defense, General, and IP. Marc has over 32 years of legal experience. Currently practicing at Dentons US LLP.
Areas of practice
Legal matters Marc takes on
Marc concentrates on criminal defense, general, ip, and white collar. Each area below outlines the kind of case Marc handles, typical outcomes to expect, and how the intake process starts.
Criminal Defense
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General
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IP
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White Collar
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Criminal Defense cases in Chicago, Illinois
Marc takes criminal defense matters in Chicago, Illinois. Typical engagements include intake calls to scope the issue, review of any records or filings you already have, and a written strategy memo before Marc agrees to represent you.
General cases in Chicago, Illinois
Marc takes general matters in Chicago, Illinois. Typical engagements include intake calls to scope the issue, review of any records or filings you already have, and a written strategy memo before Marc agrees to represent you.
IP cases in Chicago, Illinois
Marc takes ip matters in Chicago, Illinois. Typical engagements include intake calls to scope the issue, review of any records or filings you already have, and a written strategy memo before Marc agrees to represent you.
White Collar cases in Chicago, Illinois
Marc takes white collar matters in Chicago, Illinois. Typical engagements include intake calls to scope the issue, review of any records or filings you already have, and a written strategy memo before Marc agrees to represent you.
Biography
Meet Marc J Zwillinger — criminal defense lawyer in Chicago
Marc J Zwillinger is a partner based in Chicago, IL. The practice focuses on Criminal Defense, General, and IP. Marc has over 32 years of legal experience. Currently practicing at Dentons US LLP.
Marc J Zwillinger is a lawyer practicing information technology, white collar criminal defense, intellectual property. Marc J received a B.A. degree from Tufts University in 1991, and has been licensed for 32 years. Marc J practices at Dentons US LLP in Chicago, IL.
Working with Marc on a criminal defense matter
Marc J Zwillinger is a lawyer practicing information technology, white collar criminal defense, intellectual property. Marc J received a B.A. degree from Tufts University in 1991, and has been licensed for 32 years. Marc J practices at Dentons US LLP in Chicago, IL.
Clients Marc works with
Marc reviews new inquiries case-by-case for criminal defense, general, and ip matters in Chicago and the surrounding Illinois area.
Credentials
Education, bar admissions, and languages
Harvard University
J.D. · 1994
Tufts University
B.A. · 1991
Jurisdictions
Marc's state bar admissions
District of Columbia
1996 · ACTIVE
Illinois
1994 · ACTIVE
Marc studied at J.D. in Harvard University and B.A. in Tufts University.
Law school and academic background
Marc completed J.D. in Harvard University and B.A. in Tufts University. Formal legal training is one signal of substantive knowledge — the day-to-day practice Marc runs in Illinois is where that training gets applied to real client questions.
Locations
Marc J Zwillinger's office in Chicago
Marc's primary office is at Sears Tower, Suite 7800, 233 S. Wacker Drive, Chicago, IL, 60606-6459. In-person meetings are by appointment; a phone intake usually comes first.
Dentons US LLP
Sears Tower, Suite 7800, 233 S. Wacker Drive
Chicago, IL 60606-6459
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Schedule your consultationHiring guide
How to hire Marc J Zwillinger — what to expect in your first consultation
Working with a new criminal defense attorney should feel structured. Here's how the first two conversations with Marc usually go, from the moment you request a consult to the day representation begins.
Consultation formats and pricing
Marc charges for the initial consult. That fee is credited toward representation if you retain Marc's office.
What to bring to your first meeting
Bring any documents you already have — police reports, medical records, filed pleadings, correspondence from an insurer, a copy of the contract at issue. If you're not sure, err on the side of bringing everything; Marc will tell you what matters and what doesn't.
Questions to ask a criminal defense attorney in Chicago, Illinois
A short list to run through before you commit: How many criminal defense matters have you handled in the last year? What's your fee structure? Who else in the office will work on this? What's your realistic estimate of timeline and range of outcomes? How do I reach you between meetings?
Fees & payment
Fees, payment methods, and consultation options for Marc
Marc discusses fees during intake so the arrangement fits the matter. Contingency, hourly, and flat-fee options are all common in criminal defense practice — ask which fits.
Hourly rates, contingency fees, and flat-fee options
Every criminal defense matter is priced differently. Simple document review might be a flat fee. Injury litigation is often contingency. Complex commercial disputes usually run hourly with a retainer. Marc confirms the model in the engagement letter before any work starts.
Payment methods and payment plans
Marc's office accepts standard payment methods. Ask about payment plans if the retainer is a stretch — many criminal defense practices work with clients on structured schedules.
Frequently asked
Frequently asked questions about Marc J Zwillinger
How much does it cost to hire Marc for a criminal defense case?
Cost depends on the type of matter, the fee model (contingency, flat, hourly), and how contested the case becomes. Marc walks through the likely range during the consult so there are no surprises.
Does Marc offer a free consultation?
Marc charges for the initial consult; that fee is credited toward representation if you retain Marc's office. Some criminal defense attorneys offer free consults — check Marc's current terms during booking.
How long do criminal defense cases in Illinois typically take?
Simple criminal defense matters can wrap in a few weeks; disputed cases can run 6–18 months from intake to resolution, longer if the matter goes to trial. Marc gives a realistic estimate for your facts at the consult — vague answers here are a red flag.
Can Marc take my case if I'm outside Chicago?
Marc is licensed in Illinois. Matters governed by Illinois law are the natural fit. Out-of-state matters are handled case-by-case, sometimes with local co-counsel. Ask during intake — Marc will tell you if the case is a fit or refer you to someone closer to your court.
What should I bring to my first meeting with Marc?
Bring every document that touches the dispute: contracts, correspondence, police or medical reports, filed pleadings, invoices, photographs, insurance letters. Also bring a written timeline of what happened, in your own words. Marc will filter what matters — over-preparing at intake is always cheaper than needing a second meeting.
Is Marc accepting new criminal defense clients right now?
Marc's intake status shifts week to week. Submit the form; the office will confirm availability or refer the matter out.
Areas served
Criminal Defense attorneys serving Chicago, Springfield and Northbrook in Illinois
Marc handles criminal defense matters throughout Illinois. Each city below is a direct link into the search page for verified criminal defense attorneys in that community.
More counsel
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If Marc's intake is full or the fit isn't right, these criminal defense attorneys in Chicago handle similar matters. Every profile below is verified and open to consultations.