Sean T. Carnathan, Business Attorney in Burlington, Massachusetts
Over 33 years of legal practice · focused on Business and Litigation · 5.0/5 rating from 1 verified client review
PartneratO'Connor, Carnathan and Mack, LLC
Burlington, MA
Practicing business in Burlington since 1993.
- 33+
- Years practicing
- 5.0 ★
- 1 client review
- 2
- Bar admissions
Practices in
Are you Sean T. Carnathan?
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Quick answer
Sean T. Carnathan is a partner based in Burlington, MA. The practice focuses on Business and Litigation. Sean has over 33 years of legal experience. Currently practicing at O'Connor, Carnathan and Mack, LLC. Rated 5.0 out of 5 from 1 client review.
- Based in
- Burlington, MA
- Experience
- over 33 years
- Known for
- Business · Litigation
- Handles Business and Litigation matters from Burlington, MA.
- Over 33 years of practice as a licensed attorney.
- Recognized with AV Preeminent.
About Sean T. Carnathan: Sean T. Carnathan is a partner based in Burlington, MA. The practice focuses on Business and Litigation. Sean has over 33 years of legal experience. Currently practicing at O'Connor, Carnathan and Mack, LLC. Rated 5.0 out of 5 from 1 client review.
Areas of practice
Sean's practice areas in Burlington
Sean concentrates on business and litigation. Each area below outlines the kind of case Sean handles, typical outcomes to expect, and how the intake process starts.
Business cases in Burlington, Massachusetts
Sean takes business matters in Burlington, Massachusetts. 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 Burlington, Massachusetts
Sean takes litigation matters in Burlington, Massachusetts. 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
Sean T. Carnathan, business attorney serving Burlington
Sean T. Carnathan is a partner based in Burlington, MA. The practice focuses on Business and Litigation. Sean has over 33 years of legal experience. Currently practicing at O'Connor, Carnathan and Mack, LLC. Rated 5.0 out of 5 from 1 client review. Sean works from Burlington, Massachusetts and takes on business matters across the region.
Sean T. Carnathan is a lawyer practicing commercial litigation, corporate litigation. Sean received a A.B. degree from Bowdoin College, and has been licensed for 33 years. Sean practices at O'Connor, Carnathan and Mack, LLC in Burlington, MA.
Working with Sean on a business matter
Sean T. Carnathan is a lawyer practicing commercial litigation, corporate litigation. Sean received a A.B. degree from Bowdoin College, and has been licensed for 33 years. Sean practices at O'Connor, Carnathan and Mack, LLC in Burlington, MA.
Clients Sean works with
Sean reviews new inquiries case-by-case for business and litigation matters in Burlington and the surrounding Massachusetts area.
Credentials
Credentials — where Sean studied and practices
Harvard Law School
LL.M. University · 1997
Bowdoin College A.B. magna cum laude
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Jurisdictions
Sean's state bar admissions
Massachusetts
1997 · ACTIVE
Maine
1993 · ACTIVE
Sean studied at LL.M. University in Harvard Law School and — in Bowdoin College A.B. magna cum laude.
Law school and academic background
Sean completed LL.M. University in Harvard Law School and — in Bowdoin College A.B. magna cum laude. Formal legal training is one signal of substantive knowledge — the day-to-day practice Sean runs in Massachusetts is where that training gets applied to real client questions.
Recognition
Sean's legal honors and published work
Sean has received 1 formal recognition from bar associations, industry bodies, and peer-review services.
AV Preeminent
Legal awards and honors
AV Preeminent.
Locations
Sean T. Carnathan's office in Burlington
Sean's primary office is at Landmark One, 1 Van de Graaff Drive, Suite 104, Burlington, MA, 01803-5001. In-person meetings are by appointment; a phone intake usually comes first.
O'Connor, Carnathan and Mack, LLC
Landmark One, 1 Van de Graaff Drive, Suite 104
Burlington, MA 01803-5001
Open in Google MapsClient feedback
Client reviews of Sean T. Carnathan — 5.0/5 rating from 1 verified client review
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 Burlington.
5.0
1 client review
Client ratings are sourced from public records and editorial research. Reviews on LawyersListed are accepted from verified clients once Sean T. Carnathan claims this profile.
Read all reviewsHiring guide
How to hire Sean T. Carnathan — 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 Burlington, Massachusetts
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 T. Carnathan
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 Massachusetts 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 Burlington?
Sean is licensed in Massachusetts. Matters governed by Massachusetts 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 Burlington, Boston and Cambridge in Massachusetts
Sean handles business matters throughout Massachusetts. Each city below is a direct link into the search page for verified business attorneys in that community.
More counsel
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