John Hattery Siegenthaler, Business Attorney in Mansfield, Ohio
Over 62 years of legal practice · focused on Business, Elder Law, and Health Care · 5.0/5 rating from 1 verified client review
Mansfield, OH
Practicing business in Mansfield since 1964.
- 62+
- Years practicing
- 5.0 ★
- 1 client review
- 1
- Bar admission
Are you John Hattery Siegenthaler?
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Quick answer
John Hattery Siegenthaler is an attorney based in Mansfield, OH. The practice focuses on Business, Elder Law, and Health Care. John has over 62 years of legal experience. Rated 5.0 out of 5 from 1 client review.
- Based in
- Mansfield, OH
- Experience
- over 62 years
- Known for
- Business · Elder Law · Health Care
- Handles Business, Elder Law, and Health Care matters from Mansfield, OH.
- Over 62 years of practice as a licensed attorney.
- Recognized with AV Preeminent.
About John Hattery Siegenthaler: John Hattery Siegenthaler is an attorney based in Mansfield, OH. The practice focuses on Business, Elder Law, and Health Care. John has over 62 years of legal experience. Rated 5.0 out of 5 from 1 client review.
Areas of practice
John's practice areas in Mansfield
John concentrates on business, elder law, health care, litigation, and probate. 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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Elder Law
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Health Care
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Litigation
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Probate
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Real Estate
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Securities
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Trusts
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Estate Planning
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SSD
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Business cases in Mansfield, Ohio
John takes business matters in Mansfield, 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 John agrees to represent you.
Elder Law cases in Mansfield, Ohio
John takes elder law matters in Mansfield, 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 John agrees to represent you.
Health Care cases in Mansfield, Ohio
John takes health care matters in Mansfield, 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 John agrees to represent you.
Litigation cases in Mansfield, Ohio
John takes litigation matters in Mansfield, 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 John agrees to represent you.
Probate cases in Mansfield, Ohio
John takes probate matters in Mansfield, 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 John agrees to represent you.
Biography
John Hattery Siegenthaler, business attorney serving Mansfield
John Hattery Siegenthaler is an attorney based in Mansfield, OH. The practice focuses on Business, Elder Law, and Health Care. John has over 62 years of legal experience. Rated 5.0 out of 5 from 1 client review. John works from Mansfield, Ohio and takes on business matters across the region.
John Hattery Siegenthaler is a lawyer practicing corporate, trust, health care and 8 other areas of law. John received a A.B. degree from Denison University in 1961, and has been licensed for 62 years. John practices in Mansfield, OH.
Working with John on a business matter
John Hattery Siegenthaler is a lawyer practicing corporate, trust, health care and 8 other areas of law. John received a A.B. degree from Denison University in 1961, and has been licensed for 62 years. John practices in Mansfield, OH.
Clients John works with
John reviews new inquiries case-by-case for business, elder law, and health care matters in Mansfield and the surrounding Ohio area.
Credentials
Credentials — where John studied and practices
The Ohio State University
J.D. · 1964
Denison University
A.B. · 1961
Jurisdictions
John's state bar admissions
Ohio U.S. District C
1964 · ACTIVE
John studied at J.D. in The Ohio State University and A.B. in Denison University.
Law school and academic background
John completed J.D. in The Ohio State University and A.B. in Denison University. Formal legal training is one signal of substantive knowledge — the day-to-day practice John runs in Ohio is where that training gets applied to real client questions.
Recognition
John's legal honors and published work
John has received 1 formal recognition from bar associations, industry bodies, and peer-review services.
AV Preeminent
Legal awards and honors
AV Preeminent.
Affiliations
John's professional memberships and bar associations
Richland County (President, 1988) and Ohio State Bar Associations Ohio Society of Hospital Attorneys
membership
Locations
John Hattery Siegenthaler's office in Mansfield
John's primary office is at 525 Woodhill Rd, Mansfield, OH, 44907-1039. In-person meetings are by appointment; a phone intake usually comes first.
Client feedback
Client reviews of John Hattery Siegenthaler — 5.0/5 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 Mansfield.
5.0
1 client review
Client ratings are sourced from public records and editorial research. Reviews on LawyersListed are accepted from verified clients once John Hattery Siegenthaler claims this profile.
Read all reviewsHiring guide
How to hire John Hattery Siegenthaler — 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 Mansfield, 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 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 Hattery Siegenthaler
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 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. 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 Mansfield?
John 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 — 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 Mansfield, Columbus and Cleveland in Ohio
John 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 John's intake is full or the fit isn't right, these business attorneys in Mansfield handle similar matters. Every profile below is verified and open to consultations.





