Dennis O'Connor QC, ADR Attorney in the United States
Over 60 years of legal practice · focused on ADR and Appellate · 5.0/5 rating from 1 verified client review
Senior Counsel
Practicing adr since 1966.
- 60+
- Years practicing
- 5.0 ★
- 1 client review
- 3
- Bar admissions
Are you Dennis O'Connor QC?
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Quick answer
Dennis O'Connor QC is a senior counsel based in Toronto, ON. The practice focuses on ADR and Appellate. Dennis has over 60 years of legal experience. Rated 5.0 out of 5 from 1 client review.
- Based in
- Toronto, ON
- Experience
- over 60 years
- Known for
- ADR · Appellate
- Handles ADR and Appellate matters from Toronto, ON.
- Over 60 years of practice as a licensed attorney.
- Recognized with AV Preeminent.
About Dennis O'Connor QC: Dennis O'Connor QC is a senior counsel based in Toronto, ON. The practice focuses on ADR and Appellate. Dennis has over 60 years of legal experience. Rated 5.0 out of 5 from 1 client review.
Areas of practice
Practice areas handled by Dennis O'Connor QC
Dennis concentrates on adr and appellate. Each area below outlines the kind of case Dennis handles, typical outcomes to expect, and how the intake process starts.
ADR cases nationwide
Dennis takes adr matters nationwide. Typical engagements include intake calls to scope the issue, review of any records or filings you already have, and a written strategy memo before Dennis agrees to represent you.
Appellate cases nationwide
Dennis takes appellate matters nationwide. Typical engagements include intake calls to scope the issue, review of any records or filings you already have, and a written strategy memo before Dennis agrees to represent you.
Biography
About Dennis O'Connor QC — Over 60 years of the U.S. adr experience
Dennis O'Connor QC is a senior counsel based in Toronto, ON. The practice focuses on ADR and Appellate. Dennis has over 60 years of legal experience. Rated 5.0 out of 5 from 1 client review.
Dennis O'Connor, QC is a lawyer practicing public law litigation and arbitration, corporate commercial litigation and arbitration, appellate advocacy. Dennis has been licensed for 60 years. Dennis practices at Borden Ladner Gervais LLP in Toronto, ON.
Working with Dennis on a adr matter
Dennis O'Connor, QC is a lawyer practicing public law litigation and arbitration, corporate commercial litigation and arbitration, appellate advocacy. Dennis has been licensed for 60 years. Dennis practices at Borden Ladner Gervais LLP in Toronto, ON.
Who Dennis represents
Dennis reviews new inquiries case-by-case for adr and appellate matters in the United States.
Credentials
Dennis O'Connor QC's legal education and bar admissions
Osgoode Hall Law School
LL.B. · 1964
Jurisdictions
Dennis's state bar admissions
Appointed as an Offi
2016 · ACTIVE
Appointed Queen's Co
1980 · ACTIVE
Called to the Bar
1966 · ACTIVE
Dennis studied at LL.B. in Osgoode Hall Law School.
Law school and academic background
Dennis completed LL.B. in Osgoode Hall Law School. Formal legal training is one signal of substantive knowledge — the day-to-day practice Dennis runs in the state is where that training gets applied to real client questions.
Recognition
Awards, publications, and recognition of Dennis O'Connor QC
Dennis has received 1 formal recognition from bar associations, industry bodies, and peer-review services.
AV Preeminent
Legal awards and honors
AV Preeminent.
Affiliations
Dennis's professional memberships and bar associations
Professional Involvement •Chair, Pro Bono Canada •Member, Board of Directors, Innocence Canada •Member, Arbitration Place •fellow, American College of Trial Lawyers, 1991-present
membership
Locations
Dennis O'Connor QC's office in Toronto
Dennis's primary office is at Bay Adelaide Centre, East Tower, 22 Adelaide Street West, Suite 3400, Toronto, ON, M5H 4E3. In-person meetings are by appointment; a phone intake usually comes first.
Bay Adelaide Centre, East Tower, 22 Adelaide Street West, Suite 3400
Toronto, ON M5H 4E3
Open in Google MapsClient feedback
Client reviews of Dennis O'Connor QC — 5.0/5 rating from 1 verified client review
Every review below is from a verified client of Dennis. Reviews cover communication, case outcome, and value — the three signals that matter most when comparing adr attorneys in your area.
5.0
1 client review
Client ratings are sourced from public records and editorial research. Reviews on LawyersListed are accepted from verified clients once Dennis O'Connor QC claims this profile.
Read all reviewsHiring guide
How to hire Dennis O'Connor QC — what to expect in your first consultation
Working with a new adr attorney should feel structured. Here's how the first two conversations with Dennis usually go, from the moment you request a consult to the day representation begins.
Consultation formats and pricing
Dennis charges for the initial consult. That fee is credited toward representation if you retain Dennis'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; Dennis will tell you what matters and what doesn't.
Questions to ask a adr attorney in your state
A short list to run through before you commit: How many adr 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 Dennis
Dennis discusses fees during intake so the arrangement fits the matter. Contingency, hourly, and flat-fee options are all common in adr practice — ask which fits.
Hourly rates, contingency fees, and flat-fee options
Every adr 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. Dennis confirms the model in the engagement letter before any work starts.
Payment methods and payment plans
Dennis's office accepts standard payment methods. Ask about payment plans if the retainer is a stretch — many adr practices work with clients on structured schedules.
Frequently asked
Frequently asked questions about Dennis O'Connor QC
How much does it cost to hire Dennis for a adr case?
Cost depends on the type of matter, the fee model (contingency, flat, hourly), and how contested the case becomes. Dennis walks through the likely range during the consult so there are no surprises.
Does Dennis offer a free consultation?
Dennis charges for the initial consult; that fee is credited toward representation if you retain Dennis's office. Some adr attorneys offer free consults — check Dennis's current terms during booking.
How long do adr cases in this state typically take?
Simple adr 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. Dennis gives a realistic estimate for your facts at the consult — vague answers here are a red flag.
Can Dennis take my case if I'm outside the area?
Dennis evaluates matters case by case. If the venue is outside Dennis's regular jurisdictions, the intake call will confirm whether direct representation or a referral makes more sense.
What should I bring to my first meeting with Dennis?
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. Dennis will filter what matters — over-preparing at intake is always cheaper than needing a second meeting.
Is Dennis accepting new adr clients right now?
Dennis's intake status shifts week to week. Submit the form; the office will confirm availability or refer the matter out.