
Michael Sean Mostow, Environmental Attorney in Chicago, Illinois
Over 35 years of legal practice · focused on Environmental and Insurance · 5.0/5 rating from 1 verified client review
PartneratQuarles & Brady LLP
Chicago, IL
Practicing environmental in Chicago since 1991.
- 35+
- Years practicing
- 5.0 ★
- 1 client review
- 2
- Bar admissions
Practices in
Are you Michael Sean Mostow?
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Quick answer
Michael Sean Mostow is a partner based in Chicago, IL. The practice focuses on Environmental and Insurance. Michael has over 35 years of legal experience. Currently practicing at Quarles & Brady LLP. Rated 5.0 out of 5 from 1 client review.
- Based in
- Chicago, IL
- Experience
- over 35 years
- Known for
- Environmental · Insurance
- Handles Environmental and Insurance matters from Chicago, IL.
- Over 35 years of practice as a licensed attorney.
- Recognized with AV Preeminent.
About Michael Sean Mostow: Michael Sean Mostow is a partner based in Chicago, IL. The practice focuses on Environmental and Insurance. Michael has over 35 years of legal experience. Currently practicing at Quarles & Brady LLP. Rated 5.0 out of 5 from 1 client review.
Areas of practice
Legal matters Michael takes on
Michael concentrates on environmental and insurance. Each area below outlines the kind of case Michael handles, typical outcomes to expect, and how the intake process starts.
Environmental cases in Chicago, Illinois
Michael takes environmental 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 Michael agrees to represent you.
Insurance cases in Chicago, Illinois
Michael takes insurance 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 Michael agrees to represent you.
Biography
Meet Michael Sean Mostow — environmental lawyer in Chicago
Michael Sean Mostow is a partner based in Chicago, IL. The practice focuses on Environmental and Insurance. Michael has over 35 years of legal experience. Currently practicing at Quarles & Brady LLP. Rated 5.0 out of 5 from 1 client review.
Michael Sean Mostow is a lawyer practicing environmental, insurance. Michael received a B.A. degree from University of Illinois in 1987, and has been licensed for 35 years. Michael practices at Quarles & Brady LLP in Chicago, IL.
How Michael handles environmental matters
Michael Sean Mostow is a lawyer practicing environmental, insurance. Michael received a B.A. degree from University of Illinois in 1987, and has been licensed for 35 years. Michael practices at Quarles & Brady LLP in Chicago, IL.
The kind of cases Michael takes
Michael reviews new inquiries case-by-case for environmental and insurance matters in Chicago and the surrounding Illinois area.
Credentials
Education, bar admissions, and languages
Northwestern University School of Law JD
—
University of Illinois
B.A. · 1987
Jurisdictions
Michael's state bar admissions
Illinois
1991 · ACTIVE
U.S. District Court,
1991 · ACTIVE
Michael studied at — in Northwestern University School of Law JD and B.A. in University of Illinois.
Law school and academic background
Michael completed — in Northwestern University School of Law JD and B.A. in University of Illinois. Formal legal training is one signal of substantive knowledge — the day-to-day practice Michael runs in Illinois is where that training gets applied to real client questions.
Recognition
Recognition and thought leadership
Michael has received 1 formal recognition from bar associations, industry bodies, and peer-review services.
AV Preeminent
Legal awards and honors
AV Preeminent.
Affiliations
Michael's professional memberships and bar associations
Chicago (Chair and former Legislative Liaison of Environmental Law Committee), Illinois State (Member, Environmental Law and Insurance Law Sections) and American Bar Associations
membership
Locations
Michael Sean Mostow's office in Chicago
Michael's primary office is at 300 N. LaSalle Street, Suite 4000, Chicago, IL, 60654. In-person meetings are by appointment; a phone intake usually comes first.
Client feedback
Client reviews of Michael Sean Mostow — 5.0/5 rating from 1 verified client review
Every review below is from a verified client of Michael. Reviews cover communication, case outcome, and value — the three signals that matter most when comparing environmental attorneys in Chicago.
5.0
1 client review
Client ratings are sourced from public records and editorial research. Reviews on LawyersListed are accepted from verified clients once Michael Sean Mostow claims this profile.
Read all reviewsHiring guide
How to hire Michael Sean Mostow — what to expect in your first consultation
Working with a new environmental attorney should feel structured. Here's how the first two conversations with Michael usually go, from the moment you request a consult to the day representation begins.
Consultation formats and pricing
Michael charges for the initial consult. That fee is credited toward representation if you retain Michael'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; Michael will tell you what matters and what doesn't.
Questions to ask a environmental attorney in Chicago, Illinois
A short list to run through before you commit: How many environmental 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 Michael
Michael discusses fees during intake so the arrangement fits the matter. Contingency, hourly, and flat-fee options are all common in environmental practice — ask which fits.
Hourly rates, contingency fees, and flat-fee options
Every environmental 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. Michael confirms the model in the engagement letter before any work starts.
Payment methods and payment plans
Michael's office accepts standard payment methods. Ask about payment plans if the retainer is a stretch — many environmental practices work with clients on structured schedules.
Frequently asked
Frequently asked questions about Michael Sean Mostow
How much does it cost to hire Michael for a environmental case?
Cost depends on the type of matter, the fee model (contingency, flat, hourly), and how contested the case becomes. Michael walks through the likely range during the consult so there are no surprises.
Does Michael offer a free consultation?
Michael charges for the initial consult; that fee is credited toward representation if you retain Michael's office. Some environmental attorneys offer free consults — check Michael's current terms during booking.
How long do environmental cases in Illinois typically take?
Simple environmental 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. Michael gives a realistic estimate for your facts at the consult — vague answers here are a red flag.
Can Michael take my case if I'm outside Chicago?
Michael 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 — Michael 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 Michael?
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. Michael will filter what matters — over-preparing at intake is always cheaper than needing a second meeting.
Is Michael accepting new environmental clients right now?
Michael's intake status shifts week to week. Submit the form; the office will confirm availability or refer the matter out.
Areas served
Environmental attorneys serving Chicago, Springfield and Northbrook in Illinois
Michael handles environmental matters throughout Illinois. Each city below is a direct link into the search page for verified environmental attorneys in that community.
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Other top-rated environmental attorneys in Illinois
If Michael's intake is full or the fit isn't right, these environmental attorneys in Chicago handle similar matters. Every profile below is verified and open to consultations.





