Sean William Colligan, Business Attorney in Kansas City, Missouri
Over 35 years of legal practice · focused on Business, Class Action, and Consumer · 5.0/5 rating from 10 verified client reviews
PartneratStinson
Kansas City, MO
Practicing business in Kansas City since 1991.
- 35+
- Years practicing
- 5.0 ★
- 10 client reviews
- 4
- Bar admissions
Are you Sean William Colligan?
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Quick answer
Sean William Colligan is a partner based in Kansas City, MO. The practice focuses on Business, Class Action, and Consumer. Sean has over 35 years of legal experience. Currently practicing at Stinson. Rated 5.0 out of 5 from 10 client reviews.
- Based in
- Kansas City, MO
- Experience
- over 35 years
- Known for
- Business · Class Action · Consumer
- Handles Business, Class Action, and Consumer matters from Kansas City, MO.
- Over 35 years of practice as a licensed attorney.
- Recognized with Peer Reviewed.
About Sean William Colligan: Sean William Colligan is a partner based in Kansas City, MO. The practice focuses on Business, Class Action, and Consumer. Sean has over 35 years of legal experience. Currently practicing at Stinson. Rated 5.0 out of 5 from 10 client reviews.
Areas of practice
Legal matters Sean takes on
Sean concentrates on business, class action, consumer, general, and litigation. Each area below outlines the kind of case Sean handles, typical outcomes to expect, and how the intake process starts.
Business
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Class Action
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Consumer
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General
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Litigation
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Securities
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Whistleblower
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White Collar
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Criminal Defense
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Business cases in Kansas City, Missouri
Sean takes business matters in Kansas City, Missouri. Typical engagements include intake calls to scope the issue, review of any records or filings you already have, and a written strategy memo before Sean agrees to represent you.
Class Action cases in Kansas City, Missouri
Sean takes class action matters in Kansas City, Missouri. Typical engagements include intake calls to scope the issue, review of any records or filings you already have, and a written strategy memo before Sean agrees to represent you.
Consumer cases in Kansas City, Missouri
Sean takes consumer matters in Kansas City, Missouri. Typical engagements include intake calls to scope the issue, review of any records or filings you already have, and a written strategy memo before Sean agrees to represent you.
General cases in Kansas City, Missouri
Sean takes general matters in Kansas City, Missouri. Typical engagements include intake calls to scope the issue, review of any records or filings you already have, and a written strategy memo before Sean agrees to represent you.
Litigation cases in Kansas City, Missouri
Sean takes litigation matters in Kansas City, Missouri. Typical engagements include intake calls to scope the issue, review of any records or filings you already have, and a written strategy memo before Sean agrees to represent you.
Biography
Meet Sean William Colligan — business lawyer in Kansas City
Sean William Colligan is a partner based in Kansas City, MO. The practice focuses on Business, Class Action, and Consumer. Sean has over 35 years of legal experience. Currently practicing at Stinson. Rated 5.0 out of 5 from 10 client reviews.
Mr. Sean William Colligan is a lawyer practicing securities / investment fraud, business litigation, class actions - business litigation and 5 other areas of law. Sean received a B.A. degree from University of Chicago in 1988, and has been licensed for 35 years. Sean practices at Stinson in Kansas City, MO.
Sean's approach to business cases
Mr. Sean William Colligan is a lawyer practicing securities / investment fraud, business litigation, class actions - business litigation and 5 other areas of law. Sean received a B.A. degree from University of Chicago in 1988, and has been licensed for 35 years. Sean practices at Stinson in Kansas City, MO.
Clients Sean works with
Sean reviews new inquiries case-by-case for business, class action, and consumer matters in Kansas City and the surrounding Missouri area.
Credentials
Education, bar admissions, and languages
Harvard University
J.D. · 1991
University of Chicago
B.A. · 1988
Jurisdictions
Sean's state bar admissions
Kansas
2012 · ACTIVE
Missouri
1997 · ACTIVE
U.S. Court of Federa
1992 · ACTIVE
North Carolina (Inac
1991 · ACTIVE
Sean studied at J.D. in Harvard University and B.A. in University of Chicago.
Law school and academic background
Sean completed J.D. in Harvard University and B.A. in University of Chicago. Formal legal training is one signal of substantive knowledge — the day-to-day practice Sean runs in Missouri is where that training gets applied to real client questions.
Recognition
Recognition and thought leadership
Sean has received 1 formal recognition from bar associations, industry bodies, and peer-review services.
Peer Reviewed
Legal awards and honors
Peer Reviewed.
Locations
Sean William Colligan's office in Kansas City
Sean's primary office is at 1201 Walnut Street, Suite 2900, Kansas City, MO, 64106. In-person meetings are by appointment; a phone intake usually comes first.
Client feedback
Client reviews of Sean William Colligan — 5.0/5 rating from 10 verified client reviews
Every review below is from a verified client of Sean. Reviews cover communication, case outcome, and value — the three signals that matter most when comparing business attorneys in Kansas City.
5.0
10 client reviews
Client ratings are sourced from public records and editorial research. Reviews on LawyersListed are accepted from verified clients once Sean William Colligan claims this profile.
Read all reviewsHiring guide
How to hire Sean William Colligan — what to expect in your first consultation
Working with a new business attorney should feel structured. Here's how the first two conversations with Sean usually go, from the moment you request a consult to the day representation begins.
Consultation formats and pricing
Sean charges for the initial consult. That fee is credited toward representation if you retain Sean'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; Sean will tell you what matters and what doesn't.
Questions to ask a business attorney in Kansas City, Missouri
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 Sean
Sean 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. Sean confirms the model in the engagement letter before any work starts.
Payment methods and payment plans
Sean'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 Sean William Colligan
How much does it cost to hire Sean for a business case?
Cost depends on the type of matter, the fee model (contingency, flat, hourly), and how contested the case becomes. Sean walks through the likely range during the consult so there are no surprises.
Does Sean offer a free consultation?
Sean charges for the initial consult; that fee is credited toward representation if you retain Sean's office. Some business attorneys offer free consults — check Sean's current terms during booking.
How long do business cases in Missouri 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. Sean gives a realistic estimate for your facts at the consult — vague answers here are a red flag.
Can Sean take my case if I'm outside Kansas City?
Sean is licensed in Missouri. Matters governed by Missouri law are the natural fit. Out-of-state matters are handled case-by-case, sometimes with local co-counsel. Ask during intake — Sean 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 Sean?
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. Sean will filter what matters — over-preparing at intake is always cheaper than needing a second meeting.
Is Sean accepting new business clients right now?
Sean'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 Kansas City, St Louis and Jefferson City in Missouri
Sean handles business matters throughout Missouri. Each city below is a direct link into the search page for verified business attorneys in that community.
More counsel
Other top-rated business attorneys in Missouri
If Sean's intake is full or the fit isn't right, these business attorneys in Kansas City handle similar matters. Every profile below is verified and open to consultations.





