
Mark Oliver Denehy, Criminal Defense Attorney in Providence, Rhode Island
Over 47 years of legal practice · focused on Criminal Defense, Environmental, and Insurance · 5.0/5 rating from 1 verified client review
Senior CounselatAdler Pollock & Sheehan P.C.
Providence, RI
Practicing criminal defense in Providence since 1979.
- 47+
- Years practicing
- 5.0 ★
- 1 client review
- 4
- Bar admissions
Are you Mark Oliver Denehy?
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Quick answer
Mark Oliver Denehy is a senior counsel based in Providence, RI. The practice focuses on Criminal Defense, Environmental, and Insurance. Mark has over 47 years of legal experience. Currently practicing at Adler Pollock & Sheehan P.C.. Rated 5.0 out of 5 from 1 client review.
- Based in
- Providence, RI
- Experience
- over 47 years
- Known for
- Criminal Defense · Environmental · Insurance
- Handles Criminal Defense, Environmental, and Insurance matters from Providence, RI.
- Over 47 years of practice as a licensed attorney.
- Recognized with AV Preeminent.
About Mark Oliver Denehy: Mark Oliver Denehy is a senior counsel based in Providence, RI. The practice focuses on Criminal Defense, Environmental, and Insurance. Mark has over 47 years of legal experience. Currently practicing at Adler Pollock & Sheehan P.C.. Rated 5.0 out of 5 from 1 client review.
Areas of practice
Legal matters Mark takes on
Mark concentrates on criminal defense, environmental, insurance, litigation, and product liability. Each area below outlines the kind of case Mark handles, typical outcomes to expect, and how the intake process starts.
Criminal Defense
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Environmental
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Insurance
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Litigation
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Product Liability
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White Collar
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Business
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Criminal Defense cases in Providence, Rhode Island
Mark takes criminal defense matters in Providence, Rhode Island. Typical engagements include intake calls to scope the issue, review of any records or filings you already have, and a written strategy memo before Mark agrees to represent you.
Environmental cases in Providence, Rhode Island
Mark takes environmental matters in Providence, Rhode Island. Typical engagements include intake calls to scope the issue, review of any records or filings you already have, and a written strategy memo before Mark agrees to represent you.
Insurance cases in Providence, Rhode Island
Mark takes insurance matters in Providence, Rhode Island. Typical engagements include intake calls to scope the issue, review of any records or filings you already have, and a written strategy memo before Mark agrees to represent you.
Litigation cases in Providence, Rhode Island
Mark takes litigation matters in Providence, Rhode Island. Typical engagements include intake calls to scope the issue, review of any records or filings you already have, and a written strategy memo before Mark agrees to represent you.
Product Liability cases in Providence, Rhode Island
Mark takes product liability matters in Providence, Rhode Island. Typical engagements include intake calls to scope the issue, review of any records or filings you already have, and a written strategy memo before Mark agrees to represent you.
Biography
Meet Mark Oliver Denehy — criminal defense lawyer in Providence
Mark Oliver Denehy is a senior counsel based in Providence, RI. The practice focuses on Criminal Defense, Environmental, and Insurance. Mark has over 47 years of legal experience. Currently practicing at Adler Pollock & Sheehan P.C.. Rated 5.0 out of 5 from 1 client review.
Mark Oliver Denehy is a lawyer practicing litigation, products liability/toxic tort/mass torts, white collar criminal defense and 3 other areas of law. Mark received a B.A. degree from University of Connecticut in 1975, and has been licensed for 47 years. Mark practices at Adler Pollock & Sheehan P.C. in Providence, RI.
Mark's approach to criminal defense cases
Mark Oliver Denehy is a lawyer practicing litigation, products liability/toxic tort/mass torts, white collar criminal defense and 3 other areas of law. Mark received a B.A. degree from University of Connecticut in 1975, and has been licensed for 47 years. Mark practices at Adler Pollock & Sheehan P.C. in Providence, RI.
The kind of cases Mark takes
Mark reviews new inquiries case-by-case for criminal defense, environmental, and insurance matters in Providence and the surrounding Rhode Island area.
Credentials
Education, bar admissions, and languages
Suffolk University
J.D. · 1979
University of Connecticut
B.A. · 1975
Jurisdictions
Mark's state bar admissions
Rhode Island U.S. Di
1986 · ACTIVE
Pennsylvania
1980 · ACTIVE
Massachusetts
1980 · ACTIVE
Connecticut
1979 · ACTIVE
Mark studied at J.D. in Suffolk University and B.A. in University of Connecticut.
Law school and academic background
Mark completed J.D. in Suffolk University and B.A. in University of Connecticut. Formal legal training is one signal of substantive knowledge — the day-to-day practice Mark runs in Rhode Island is where that training gets applied to real client questions.
Recognition
Recognition and thought leadership
Mark has received 1 formal recognition from bar associations, industry bodies, and peer-review services.
AV Preeminent
Legal awards and honors
AV Preeminent.
Affiliations
Mark's professional memberships and bar associations
Professional Affiliations •Member, Rhode Island Bar Association Committee on Environmental Law
membership
•American Bar Association's Torts and Insurance practice section member
membership
•Member, ABA's section on Natural Resources, Energy and Environmental Law
membership
Locations
Mark Oliver Denehy's office in Providence
Mark's primary office is at One Citizens Plaza, 8th Floor, Providence, RI, 02903. In-person meetings are by appointment; a phone intake usually comes first.
Adler Pollock & Sheehan P.C.
One Citizens Plaza, 8th Floor
Providence, RI 02903
Open in Google MapsClient feedback
Client reviews of Mark Oliver Denehy — 5.0/5 rating from 1 verified client review
Every review below is from a verified client of Mark. Reviews cover communication, case outcome, and value — the three signals that matter most when comparing criminal defense attorneys in Providence.
5.0
1 client review
Client ratings are sourced from public records and editorial research. Reviews on LawyersListed are accepted from verified clients once Mark Oliver Denehy claims this profile.
Read all reviewsHiring guide
How to hire Mark Oliver Denehy — what to expect in your first consultation
Working with a new criminal defense attorney should feel structured. Here's how the first two conversations with Mark usually go, from the moment you request a consult to the day representation begins.
Consultation formats and pricing
Mark charges for the initial consult. That fee is credited toward representation if you retain Mark'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; Mark will tell you what matters and what doesn't.
Questions to ask a criminal defense attorney in Providence, Rhode Island
A short list to run through before you commit: How many criminal defense 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 Mark
Mark discusses fees during intake so the arrangement fits the matter. Contingency, hourly, and flat-fee options are all common in criminal defense practice — ask which fits.
Hourly rates, contingency fees, and flat-fee options
Every criminal defense 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. Mark confirms the model in the engagement letter before any work starts.
Payment methods and payment plans
Mark's office accepts standard payment methods. Ask about payment plans if the retainer is a stretch — many criminal defense practices work with clients on structured schedules.
Frequently asked
Frequently asked questions about Mark Oliver Denehy
How much does it cost to hire Mark for a criminal defense case?
Cost depends on the type of matter, the fee model (contingency, flat, hourly), and how contested the case becomes. Mark walks through the likely range during the consult so there are no surprises.
Does Mark offer a free consultation?
Mark charges for the initial consult; that fee is credited toward representation if you retain Mark's office. Some criminal defense attorneys offer free consults — check Mark's current terms during booking.
How long do criminal defense cases in Rhode Island typically take?
Simple criminal defense 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. Mark gives a realistic estimate for your facts at the consult — vague answers here are a red flag.
Can Mark take my case if I'm outside Providence?
Mark is licensed in Rhode Island. Matters governed by Rhode Island law are the natural fit. Out-of-state matters are handled case-by-case, sometimes with local co-counsel. Ask during intake — Mark 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 Mark?
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. Mark will filter what matters — over-preparing at intake is always cheaper than needing a second meeting.
Is Mark accepting new criminal defense clients right now?
Mark's intake status shifts week to week. Submit the form; the office will confirm availability or refer the matter out.
Areas served
Criminal Defense attorneys serving Providence, Warwick and Cranston in Rhode Island
Mark handles criminal defense matters throughout Rhode Island. Each city below is a direct link into the search page for verified criminal defense attorneys in that community.
More counsel
Other top-rated criminal defense attorneys in Rhode Island
If Mark's intake is full or the fit isn't right, these criminal defense attorneys in Providence handle similar matters. Every profile below is verified and open to consultations.

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Richard E Palumbo, Jr.
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Carl Joseph Asprinio
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Lawrence J. Signore, Esq.
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