Atty. Philipp Duffy
Philipp Duffy offers structured expertise and hands-on experience. Philipp Duffy's practice focuses on real estate and infrastructure, including public-private partnerships and alternative procurement methods.
Construction Law & More Attorney · Serving Montreal, QC · 28+ Years Experience
Profile Summary
About Philipp Duffy at a Glance
Philipp Duffy is a business, real estate, and construction attorney based in Montreal, Quebec, practicing at De Grandpré Chait LLP. They have 28+ years of legal experience, licensed to practice since 1998. Admitted to practice in Quebec (1998). Educated at McGill University (B.C.L. and LL.B., 1997) and McGill University (—, 1993). Recognitions include Best Lawyers in America — Construction Law (2026), Best Lawyers in America — Project Finance Law (2026), and Best Lawyers in America — Real Estate Law (2026). Serves clients in Montreal, QC and the surrounding metropolitan area.
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About Philipp Duffy
- Philipp Duffy offers structured expertise and hands-on experience
- Philipp Duffy's practice focuses on real estate and infrastructure, including public-private partnerships and alternative procurement methods
- His real estate expertise extends to project development, acquisitions and divestitures (of both single assets and asset portfolios) and land assembly, as well as leasing and real estate financing for a wide range of asset classes including industrial properties, office towers, resorts, custom-built buildings, residential condominiums and retail centres
- With respect to infrastructure and public-private partnerships, he has represented clients in a variety of projects including highway, rail and light rail projects, several new hospitals, a medical research centre and detention centres
- He has in-depth knowledge of the selection and contracting process of the Société québécoise des infrastructures (SQI)
- As co-leader of our Construction Law team, Philipp Duffy represents a significant number of stakeholders, including real estate developers, builders, project owners, managers, investors and sponsors in a broad range of real estate and infrastructure-related matters
- He has been involved in several major projects that have shaped and continue to shape the face of Greater Montréal, including Bell Canada’s Nun’s Island Campus, the Cité du Multimédia, the E-Commerce Place, the CRCHUM, the three phases of the Tours des Canadiens and, most recently, the new Turcot Interchange construction project
- As partner to some of Montréal’s greatest builders, Philipp Duffy is helping to redesign the city’s landscape, one project at a time
Practice Areas Explained
Philipp Duffy's Areas of Legal Practice
Each practice area below reflects the types of cases Philipp Duffy handles, with a practical overview of what that area of law involves and how it may apply to your situation in Montreal.
Business & Corporate Law in Montreal
Business attorneys advise founders and growing companies on entity formation, contracts, financing, M&A, and dispute resolution.
Philipp Duffy is one of 497,491 business attorneys indexed nationally. Browse business attorneys in Quebec →
Real Estate Law in Montreal
Real estate attorneys handle home purchases, sales, commercial transactions, title disputes, and landlord-tenant matters.
Philipp Duffy is one of 313,729 real estate attorneys indexed nationally. Browse real estate attorneys in Quebec →
Construction Law in Montreal
Philipp Duffy is one of 40,302 construction attorneys indexed nationally. Browse construction attorneys in Quebec →
Jurisdictional Context
Why Local Counsel Matters in Montreal
Practicing law in Quebec. Legal matters in Quebec are governed by state-specific rules of civil and criminal procedure, statutes of limitations, and substantive law. Cases originating in Montreal are typically filed in the local municipal court or the appropriate Quebec state district court, depending on subject matter and amount in controversy. An attorney licensed in Quebec brings working knowledge of local procedural deadlines, judicial practices in this venue, and the substantive law that applies to cases brought here. Out-of-state attorneys generally cannot represent clients in Quebec courts without local counsel or pro hac vice admission.
Montreal Courts and Legal Process
Choosing a Montreal-based attorney means your counsel already knows the local docketing timelines, preferred filing formats, and how individual judges typically rule on procedural motions — details that only come from practicing in this jurisdiction day after day. That local familiarity can translate to better strategy, faster filings, and fewer costly surprises.
Looking for additional Quebec attorneys? Browse all attorneys in Montreal or all attorneys in Quebec.
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Professional Profile
Why Clients in Montreal Choose Philipp Duffy
Selecting an attorney is one of the most consequential decisions you can make when a legal matter arises. Below are the core qualities that distinguish Philipp Duffy's practice in the field of business, real estate, and construction.
Decade-Tested Legal Experience
Philipp Duffy brings 28+ years of hands-on legal practice — enough to have navigated the recurring fact patterns, procedural traps, and negotiation dynamics that shape case outcomes.
Broad Practice Area Coverage
Covering business, real estate, and construction, Philipp Duffy can address the full spectrum of a client's legal needs without requiring referrals to separate specialists for each issue.
Local Presence in Montreal
A Montreal-based practice means Philipp Duffy attends hearings in the same courthouses, knows the local clerks, and understands the unwritten scheduling norms that affect every case filed here.
Case Types
Common Legal Issues Philipp Duffy Handles in Montreal
Below is a representative sample of the types of matters Philipp Duffy has experience with under Quebec law. If your situation involves one of these case categories, this attorney may be well positioned to help you understand your options.
This list is illustrative, not exhaustive. Contact Philipp Duffy directly to discuss the specifics of your situation.
Search Reference
How People Find Philipp Duffy Online
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Philipp Duffy's Practice Areas & Specializations
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