Marshall Wynn Guerin, Business Attorney in Westerville, Ohio
Over 34 years of legal practice · focused on Business, Criminal Defense, and Litigation · 4.4/5 rating from 1 verified client review
Trial Atty.
Westerville, OH
Practicing business in Westerville since 1992.
- 34+
- Years practicing
- 4.4 ★
- 1 client review
- 3
- Bar admissions
Are you Marshall Wynn Guerin?
This profile was built from public bar records and is still unclaimed. Claim it free to control your photo, bio, and fees — and get client inquiries sent straight to you.
Quick answer
Marshall Wynn Guerin is a trial atty. based in Westerville, OH. The practice focuses on Business, Criminal Defense, and Litigation. Marshall has over 34 years of legal experience. Rated 4.4 out of 5 from 1 client review.
- Based in
- Westerville, OH
- Experience
- over 34 years
- Known for
- Business · Criminal Defense · Litigation
- Handles Business, Criminal Defense, and Litigation matters from Westerville, OH.
- Over 34 years of practice as a licensed attorney.
- Recognized with BV Distinguished.
About Marshall Wynn Guerin: Marshall Wynn Guerin is a trial atty. based in Westerville, OH. The practice focuses on Business, Criminal Defense, and Litigation. Marshall has over 34 years of legal experience. Rated 4.4 out of 5 from 1 client review.
Areas of practice
Legal matters Marshall takes on
Marshall concentrates on business, criminal defense, litigation, and personal injury. Each area below outlines the kind of case Marshall handles, typical outcomes to expect, and how the intake process starts.
Business
View other Business attorneys
Criminal Defense
View other Criminal Defense attorneys
Litigation
View other Litigation attorneys
Personal Injury
View other Personal Injury attorneys
Business cases in Westerville, Ohio
Marshall takes business matters in Westerville, Ohio. Typical engagements include intake calls to scope the issue, review of any records or filings you already have, and a written strategy memo before Marshall agrees to represent you.
Criminal Defense cases in Westerville, Ohio
Marshall takes criminal defense matters in Westerville, Ohio. Typical engagements include intake calls to scope the issue, review of any records or filings you already have, and a written strategy memo before Marshall agrees to represent you.
Litigation cases in Westerville, Ohio
Marshall takes litigation matters in Westerville, Ohio. Typical engagements include intake calls to scope the issue, review of any records or filings you already have, and a written strategy memo before Marshall agrees to represent you.
Personal Injury cases in Westerville, Ohio
Marshall takes personal injury matters in Westerville, Ohio. Typical engagements include intake calls to scope the issue, review of any records or filings you already have, and a written strategy memo before Marshall agrees to represent you.
Biography
Meet Marshall Wynn Guerin — business lawyer in Westerville
Marshall Wynn Guerin is a trial atty. based in Westerville, OH. The practice focuses on Business, Criminal Defense, and Litigation. Marshall has over 34 years of legal experience. Rated 4.4 out of 5 from 1 client review.
Marshall Wynn Guerin is a lawyer practicing business litigation, personal injury, commercial litigation and 5 other areas of law. Marshall received a B.A. degree from Earlham College in 1989, and has been licensed for 34 years. Marshall practices in Westerville, OH.
How Marshall handles business matters
Marshall Wynn Guerin is a lawyer practicing business litigation, personal injury, commercial litigation and 5 other areas of law. Marshall received a B.A. degree from Earlham College in 1989, and has been licensed for 34 years. Marshall practices in Westerville, OH.
The kind of cases Marshall takes
Marshall reviews new inquiries case-by-case for business, criminal defense, and litigation matters in Westerville and the surrounding Ohio area.
Credentials
Education, bar admissions, and languages
University of Toledo
J.D. · 1992
Earlham College
B.A. · 1989
Jurisdictions
Marshall's state bar admissions
U.S. Court of Appeal
1994 · ACTIVE
U.S. District Court,
1993 · ACTIVE
Ohio
1992 · ACTIVE
Marshall studied at J.D. in University of Toledo and B.A. in Earlham College.
Law school and academic background
Marshall completed J.D. in University of Toledo and B.A. in Earlham College. Formal legal training is one signal of substantive knowledge — the day-to-day practice Marshall runs in Ohio is where that training gets applied to real client questions.
Recognition
Recognition and thought leadership
Marshall has received 1 formal recognition from bar associations, industry bodies, and peer-review services.
BV Distinguished
Legal awards and honors
BV Distinguished.
Locations
Marshall Wynn Guerin's office in Westerville
Marshall's primary office is at 85 W Plum St, Westerville, OH, 43081-2018. In-person meetings are by appointment; a phone intake usually comes first.
Client feedback
Client reviews of Marshall Wynn Guerin — 4.4/5 rating from 1 verified client review
Every review below is from a verified client of Marshall. Reviews cover communication, case outcome, and value — the three signals that matter most when comparing business attorneys in Westerville.
4.4
1 client review
Client ratings are sourced from public records and editorial research. Reviews on LawyersListed are accepted from verified clients once Marshall Wynn Guerin claims this profile.
Read all reviewsHiring guide
How to hire Marshall Wynn Guerin — what to expect in your first consultation
Working with a new business attorney should feel structured. Here's how the first two conversations with Marshall usually go, from the moment you request a consult to the day representation begins.
Consultation formats and pricing
Marshall charges for the initial consult. That fee is credited toward representation if you retain Marshall'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; Marshall will tell you what matters and what doesn't.
Questions to ask a business attorney in Westerville, Ohio
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 Marshall
Marshall 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. Marshall confirms the model in the engagement letter before any work starts.
Payment methods and payment plans
Marshall'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 Marshall Wynn Guerin
How much does it cost to hire Marshall for a business case?
Cost depends on the type of matter, the fee model (contingency, flat, hourly), and how contested the case becomes. Marshall walks through the likely range during the consult so there are no surprises.
Does Marshall offer a free consultation?
Marshall charges for the initial consult; that fee is credited toward representation if you retain Marshall's office. Some business attorneys offer free consults — check Marshall's current terms during booking.
How long do business cases in Ohio 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. Marshall gives a realistic estimate for your facts at the consult — vague answers here are a red flag.
Can Marshall take my case if I'm outside Westerville?
Marshall is licensed in Ohio. Matters governed by Ohio law are the natural fit. Out-of-state matters are handled case-by-case, sometimes with local co-counsel. Ask during intake — Marshall 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 Marshall?
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. Marshall will filter what matters — over-preparing at intake is always cheaper than needing a second meeting.
Is Marshall accepting new business clients right now?
Marshall'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 Westerville, Columbus and Cleveland in Ohio
Marshall handles business matters throughout Ohio. 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 Ohio
If Marshall's intake is full or the fit isn't right, these business attorneys in Westerville handle similar matters. Every profile below is verified and open to consultations.





