Sean Thomas Tierney, Business Attorney in St Peters, Missouri
Over 18 years of legal practice · focused on Business, Criminal Defense, and DUI/DWI
MemberatWesterfeld Law Group, LLC
St Peters, MO
Practicing business in St Peters since 2008.
- 18+
- Years practicing
- 1
- Bar admission
Practices in
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Quick answer
Sean Thomas Tierney is a member based in St. Peters, MO. The practice focuses on Business, Criminal Defense, and DUI/DWI. Sean has over 18 years of legal experience. Currently practicing at Westerfeld Law Group, LLC.
- Based in
- St. Peters, MO
- Experience
- over 18 years
- Known for
- Business · Criminal Defense · DUI/DWI
- Handles Business, Criminal Defense, and DUI/DWI matters from St. Peters, MO.
- Over 18 years of practice as a licensed attorney.
About Sean Thomas Tierney: Sean Thomas Tierney is a member based in St. Peters, MO. The practice focuses on Business, Criminal Defense, and DUI/DWI. Sean has over 18 years of legal experience. Currently practicing at Westerfeld Law Group, LLC.
Areas of practice
Legal matters Sean takes on
Sean concentrates on business, criminal defense, dui/dwi, and family law. 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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Criminal Defense
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DUI/DWI
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Family Law
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Business cases in St Peters, Missouri
Sean takes business matters in St Peters, 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.
Criminal Defense cases in St Peters, Missouri
Sean takes criminal defense matters in St Peters, 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.
DUI/DWI cases in St Peters, Missouri
Sean takes dui/dwi matters in St Peters, 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.
Family Law cases in St Peters, Missouri
Sean takes family law matters in St Peters, 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 Thomas Tierney — business lawyer in St Peters
Sean Thomas Tierney is a member based in St. Peters, MO. The practice focuses on Business, Criminal Defense, and DUI/DWI. Sean has over 18 years of legal experience. Currently practicing at Westerfeld Law Group, LLC.
Sean Thomas Tierney is a lawyer practicing criminal defense, family, business and 1 other area of law. Sean received a B.A. degree from St. Mary's University, and has been licensed for 18 years. Sean practices at Westerfeld Law Group, LLC in St. Peters, MO.
How Sean handles business matters
Sean Thomas Tierney is a lawyer practicing criminal defense, family, business and 1 other area of law. Sean received a B.A. degree from St. Mary's University, and has been licensed for 18 years. Sean practices at Westerfeld Law Group, LLC in St. Peters, MO.
Who Sean represents
Sean reviews new inquiries case-by-case for business, criminal defense, and dui/dwi matters in St Peters and the surrounding Missouri area.
Credentials
Education, bar admissions, and languages
University of Missouri at Kansas City
J.D. · 2007
St. Mary's University B.A.
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Jurisdictions
Sean's state bar admissions
Missouri
2008 · ACTIVE
Sean studied at J.D. in University of Missouri at Kansas City and — in St. Mary's University B.A..
Law school and academic background
Sean completed J.D. in University of Missouri at Kansas City and — in St. Mary's University B.A.. 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.
Locations
Sean Thomas Tierney's office in St. Peters
Sean's primary office is at 1242 Jungermann Rd., St. Peters, MO, 63376. In-person meetings are by appointment; a phone intake usually comes first.
Client feedback
Client reviews of Sean Thomas Tierney
Sean has not yet collected verified client reviews on LawyersListed. Reviews here are all from confirmed clients; anonymous ratings are moderated out.
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Schedule your consultationHiring guide
How to hire Sean Thomas Tierney — 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 St Peters, 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 Thomas Tierney
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 St Peters?
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 St Peters, 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
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If Sean's intake is full or the fit isn't right, these business attorneys in St Peters handle similar matters. Every profile below is verified and open to consultations.