Catherine Gleason-Mercier, ADR Attorney in the United States
Over 13 years of legal practice · focused on ADR and Construction
Practicing adr since 2013.
- 13+
- Years practicing
- 1
- Bar admission
Practices in
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Quick answer
Catherine Gleason-Mercier is an attorney based in Toronto, ONTARIO. The practice focuses on ADR and Construction. Catherine has over 13 years of legal experience.
- Based in
- Toronto, ONTARIO
- Experience
- over 13 years
- Known for
- ADR · Construction
- Handles ADR and Construction matters from Toronto, ONTARIO.
- Over 13 years of practice as a licensed attorney.
- Recognized with Best Lawyers in America — Alternative Dispute Resolution (2026).
About Catherine Gleason-Mercier: Catherine Gleason-Mercier is an attorney based in Toronto, ONTARIO. The practice focuses on ADR and Construction. Catherine has over 13 years of legal experience.
Areas of practice
Catherine's practice areas in the U.S.
Catherine concentrates on adr and construction. Each area below outlines the kind of case Catherine handles, typical outcomes to expect, and how the intake process starts.
ADR cases nationwide
Catherine 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 Catherine agrees to represent you.
Construction cases nationwide
Catherine takes construction 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 Catherine agrees to represent you.
Biography
Catherine Gleason-Mercier, adr attorney serving the U.S.
Catherine Gleason-Mercier is an attorney based in Toronto, ONTARIO. The practice focuses on ADR and Construction. Catherine has over 13 years of legal experience. Catherine works from the U.S. and takes on adr matters across the region.
Catherine is a Partner in the Construction and Infrastructure Practice Group at Singleton Urquhart Reynolds Vogel LLP. She is a passionate advocate, who focuses on providing business-critical strategic counsel to clients facing complex legal challenges, particularly in complex commercial disputes and construction and infrastructure disputes. Catherine is dedicated to providing excellent client service, and ensuring the advancement of her clients’ interests with a strategic focus on achieving their overall business objectives.
She has been recognized by leading rankings publications for her expertise in construction and infrastructure, and in particular, her ability to quickly ascertain the legal complexities of a given case and provide business critical strategic legal advice.
Catherine has represented a diverse group of clients, including government entities and Crown corporations, owners and general contractors, as well as multinational public and private corporations. She has represented clients in complex commercial disputes, and in a wide variety of disputes involving construction liens and trusts, bond and insurance claims, contract interpretation, delay and extras claims, and professional negligence. Catherine also routinely advises clients on the avoidance and management of risk in the administration of construction contracts and large scale projects.
Catherine is a strong advocate, who has appeared at all levels of court in Ontario and she also has extensive experience with mediation and commercial arbitration.
Catherine is also an active industry leader, an author with respect to issues of importance to the construction and infrastructure practice of law, and a frequent speaker on construction law-related topics at industry, legal and educational events.
In addition to her practice, Catherine is a dedicated mentor and advisor, as well as a long-time supporter of Pro Bono Ontario and has regularly appeared as pro bono counsel at the Superior Court of Ontario and the Court of Appeal for Ontario.
Working with Catherine on a adr matter
Catherine is a Partner in the Construction and Infrastructure Practice Group at Singleton Urquhart Reynolds Vogel LLP. She is a passionate advocate, who focuses on providing business-critical strategic counsel to clients facing complex legal challenges, particularly in complex commercial disputes and construction and infrastructure disputes. Catherine is dedicated to providing excellent client…
Who Catherine represents
Catherine reviews new inquiries case-by-case for adr and construction matters in the United States.
Credentials
Credentials — where Catherine studied and practices
McGill University
LL.B and B.C.L. · 2012
Jurisdictions
Catherine's state bar admissions
Ontario, Law Society
2013 · ACTIVE
Catherine studied at LL.B and B.C.L. in McGill University.
Law school and academic background
Catherine completed LL.B and B.C.L. in McGill University. Formal legal training is one signal of substantive knowledge — the day-to-day practice Catherine runs in the state is where that training gets applied to real client questions.
Recognition
Catherine's legal honors and published work
Catherine has received 17 formal recognitions from bar associations, industry bodies, and peer-review services.
Best Lawyers in America — Alternative Dispute Resolution
2026
Best Lawyers in America — Construction Law
2026
Best Lawyers in America — ™
2026
Best Lawyers in America — from 2022-2023 for work in:
2026
Best Lawyers in America — Construction Law - 2023
2026
Best Lawyers in America — Construction Law - 2022
2026
Best Lawyers in America — Additional Areas of Practice:
2026
Best Lawyers in America — International Arbitration
2026
Best Lawyers in America — Awards:
2026
Best Lawyers in America — Lexpert Special Edition on Infrastructure
2026
Best Lawyers in America — Lexpert
2026
Best Lawyers in America — Directory.
2026
Best Lawyers in America — in the area of Construction Law
2026
Best Lawyers in America — as “One to Watch” in the area of Construction Law
2026
Best Lawyers in America — Benchmark Canada
2026
Best Lawyers in America — – The Definitive Guide to Canada’s Leading Litigation Firms & Attorneys as a “Future Litigation Star”
2026
Best Lawyers in America — Recipient of the Philip Meyerovitch, K.C. Prize, awarded for the highest standing in Evidence (Civil)
2026
Legal awards and honors
Best Lawyers in America — Alternative Dispute Resolution (2026). Best Lawyers in America — Construction Law (2026). Best Lawyers in America — ™ (2026). Best Lawyers in America — from 2022-2023 for work in: (2026). Best Lawyers in America — Construction Law - 2023 (2026). Best Lawyers in America — Construction Law - 2022 (2026).
Locations
Catherine Gleason-Mercier's office in Toronto
Catherine's primary office is at 150 King Street West, Suite 2512, Toronto, Ontario. In-person meetings are by appointment; a phone intake usually comes first.
Client feedback
Client reviews of Catherine Gleason-Mercier
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Schedule your consultationHiring guide
How to hire Catherine Gleason-Mercier — what to expect in your first consultation
Working with a new adr attorney should feel structured. Here's how the first two conversations with Catherine usually go, from the moment you request a consult to the day representation begins.
Consultation formats and pricing
Catherine charges for the initial consult. That fee is credited toward representation if you retain Catherine'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; Catherine 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 Catherine
Catherine 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. Catherine confirms the model in the engagement letter before any work starts.
Payment methods and payment plans
Catherine'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 Catherine Gleason-Mercier
How much does it cost to hire Catherine for a adr case?
Cost depends on the type of matter, the fee model (contingency, flat, hourly), and how contested the case becomes. Catherine walks through the likely range during the consult so there are no surprises.
Does Catherine offer a free consultation?
Catherine charges for the initial consult; that fee is credited toward representation if you retain Catherine's office. Some adr attorneys offer free consults — check Catherine'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. Catherine gives a realistic estimate for your facts at the consult — vague answers here are a red flag.
Can Catherine take my case if I'm outside the area?
Catherine evaluates matters case by case. If the venue is outside Catherine'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 Catherine?
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. Catherine will filter what matters — over-preparing at intake is always cheaper than needing a second meeting.
Is Catherine accepting new adr clients right now?
Catherine's intake status shifts week to week. Submit the form; the office will confirm availability or refer the matter out.