John Mitchell O'Hare, Business Attorney in Chicago, Illinois
Over 55 years of legal practice · focused on Business, Consumer, and Employment Contracts · 2.0/5 rating from 1 verified client review
PartneratSidley Austin LLP
Chicago, IL
Practicing business in Chicago since 1971.
- 55+
- Years practicing
- 2.0 ★
- 1 client review
- 1
- Bar admission
Are you John Mitchell O'Hare?
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Quick answer
John Mitchell O'Hare is a partner based in Chicago, IL. The practice focuses on Business, Consumer, and Employment Contracts. John has over 55 years of legal experience. Currently practicing at Sidley Austin LLP. Rated 2.0 out of 5 from 1 client review.
- Based in
- Chicago, IL
- Experience
- over 55 years
- Known for
- Business · Consumer · Employment Contracts
- Handles Business, Consumer, and Employment Contracts matters from Chicago, IL.
- Over 55 years of practice as a licensed attorney.
- Recognized with Peer Reviewed.
About John Mitchell O'Hare: John Mitchell O'Hare is a partner based in Chicago, IL. The practice focuses on Business, Consumer, and Employment Contracts. John has over 55 years of legal experience. Currently practicing at Sidley Austin LLP. Rated 2.0 out of 5 from 1 client review.
Areas of practice
Practice areas handled by John Mitchell O'Hare
John concentrates on business, consumer, employment contracts, general, and m&a. Each area below outlines the kind of case John handles, typical outcomes to expect, and how the intake process starts.
Business
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Consumer
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Employment Contracts
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General
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M&A
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Securities
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Business cases in Chicago, Illinois
John takes business 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 John agrees to represent you.
Consumer cases in Chicago, Illinois
John takes consumer 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 John agrees to represent you.
Employment Contracts cases in Chicago, Illinois
John takes employment contracts 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 John agrees to represent you.
General cases in Chicago, Illinois
John 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 John agrees to represent you.
M&A cases in Chicago, Illinois
John takes m&a 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 John agrees to represent you.
Biography
About John Mitchell O'Hare — Over 55 years of Illinois business experience
John Mitchell O'Hare is a partner based in Chicago, IL. The practice focuses on Business, Consumer, and Employment Contracts. John has over 55 years of legal experience. Currently practicing at Sidley Austin LLP. Rated 2.0 out of 5 from 1 client review.
John Mitchell O'Hare is a lawyer practicing general practice, securities & investment fraud, corporate governance and compliance and 7 other areas of law. John received a A.B. degree from University of Illinois in 1967, and has been licensed for 55 years. John practices at Sidley Austin LLP in Chicago, IL.
John's approach to business cases
John Mitchell O'Hare is a lawyer practicing general practice, securities & investment fraud, corporate governance and compliance and 7 other areas of law. John received a A.B. degree from University of Illinois in 1967, and has been licensed for 55 years. John practices at Sidley Austin LLP in Chicago, IL.
The kind of cases John takes
John reviews new inquiries case-by-case for business, consumer, and employment contracts matters in Chicago and the surrounding Illinois area.
Credentials
John Mitchell O'Hare's legal education and bar admissions
Harvard Law School
J.D. · 1971
University of Illinois
A.B. University · 1967
Jurisdictions
John's state bar admissions
Illinois
1971 · ACTIVE
John studied at J.D. in Harvard Law School and A.B. University in University of Illinois.
Law school and academic background
John completed J.D. in Harvard Law School and A.B. University in University of Illinois. Formal legal training is one signal of substantive knowledge — the day-to-day practice John runs in Illinois is where that training gets applied to real client questions.
Recognition
Awards, publications, and recognition of John Mitchell O'Hare
John has received 1 formal recognition from bar associations, industry bodies, and peer-review services.
Peer Reviewed
Legal awards and honors
Peer Reviewed.
Locations
John Mitchell O'Hare's office in Chicago
John's primary office is at One S. Dearborn St., Chicago, IL, 60603-2302. In-person meetings are by appointment; a phone intake usually comes first.
Client feedback
Client reviews of John Mitchell O'Hare — 2.0/5 rating from 1 verified client review
Every review below is from a verified client of John. Reviews cover communication, case outcome, and value — the three signals that matter most when comparing business attorneys in Chicago.
2.0
1 client review
Client ratings are sourced from public records and editorial research. Reviews on LawyersListed are accepted from verified clients once John Mitchell O'Hare claims this profile.
Read all reviewsHiring guide
How to hire John Mitchell O'Hare — what to expect in your first consultation
Working with a new business attorney should feel structured. Here's how the first two conversations with John usually go, from the moment you request a consult to the day representation begins.
Consultation formats and pricing
John charges for the initial consult. That fee is credited toward representation if you retain John'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; John will tell you what matters and what doesn't.
Questions to ask a business attorney in Chicago, Illinois
A short list to run through before you commit: How many business 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 John
John discusses fees during intake so the arrangement fits the matter. Contingency, hourly, and flat-fee options are all common in business practice — ask which fits.
Hourly rates, contingency fees, and flat-fee options
Every business 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. John confirms the model in the engagement letter before any work starts.
Payment methods and payment plans
John's office accepts standard payment methods. Ask about payment plans if the retainer is a stretch — many business practices work with clients on structured schedules.
Frequently asked
Frequently asked questions about John Mitchell O'Hare
How much does it cost to hire John for a business case?
Cost depends on the type of matter, the fee model (contingency, flat, hourly), and how contested the case becomes. John walks through the likely range during the consult so there are no surprises.
Does John offer a free consultation?
John charges for the initial consult; that fee is credited toward representation if you retain John's office. Some business attorneys offer free consults — check John's current terms during booking.
How long do business cases in Illinois typically take?
Simple business 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. John gives a realistic estimate for your facts at the consult — vague answers here are a red flag.
Can John take my case if I'm outside Chicago?
John 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 — John 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 John?
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. John will filter what matters — over-preparing at intake is always cheaper than needing a second meeting.
Is John accepting new business clients right now?
John's intake status shifts week to week. Submit the form; the office will confirm availability or refer the matter out.
Areas served
Business attorneys serving Chicago, Springfield and Northbrook in Illinois
John handles business matters throughout Illinois. Each city below is a direct link into the search page for verified business attorneys in that community.
More counsel
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If John's intake is full or the fit isn't right, these business attorneys in Chicago handle similar matters. Every profile below is verified and open to consultations.





