Margie Strub Construction Law LLP
10 lawyers · Established 2020 · City of Toronto
One of 2,345 law firms listed in Toronto, and one of 149 handling Construction Law.
About Margie Strub Construction Law LLP
Margie Strub Construction Law LLP is a Toronto firm that practices exclusively in construction law. John Margie and Joshua Strub co-founded it in 2020 and combined their surnames in the firm's name. The firm now has about ten lawyers, split between partners and associates, along with a paralegal and a senior law clerk. It advises owners, developers, contractors, subcontractors and sureties across the construction lifecycle, working on adjudication, contracts, joint ventures, collaborative contracting, project delays, project advice, disputes and general counsel services.
Margie was called to the Ontario bar in 1995 after earning a law degree from the University of Wales in Cardiff. Margie is a Certified Specialist in Construction Law with the Law Society of Ontario and a Fellow of the Canadian College of Construction Lawyers, and was a partner and former managing partner at another Toronto construction law firm before helping start this one. Strub holds a civil engineering degree from Western University along with a law degree from the same school and was called to the bar in 2015. Before co-founding the firm, Strub worked at a construction litigation firm and then in house, managing legal affairs nationwide for a large track and signal construction company. Margie and Strub also co-founded the Construction Law course at Western University's Faculty of Law and continue to teach it.
Practice areas
Milestones & recognition
- Co-founded in 2020 by John Margie and Joshua Strub, who combined their surnames to name the new firm.
- John Margie is a Certified Specialist in Construction Law with the Law Society of Ontario and a Fellow of the Canadian College of Construction Lawyers.
- Joshua Strub was named a Future Star by Benchmark Litigation in 2025 and a Stand-Out Lawyer by Thomson Reuters in 2025.
- Several of the firm's lawyers are listed in The Best Lawyers in Canada, and the firm has received Best Law Firms recognition in the Construction Law and Alternative Dispute Resolution categories.
In the community
- John Margie and Joshua Strub co-founded the Construction Law course at Western University's Faculty of Law and continue to teach it.
- The firm's lawyers regularly publish articles and case commentary on construction law topics, including holdback, construction liens, adjudication and notice requirements under the Construction Act.
Good to know
Wheelchair accessibleLawyers 10
Daniel Iaboni
Associate
Construction LawInsurance Law
Gary Brummer
Partner
Construction Law
Jacob Lokash
Associate
Construction Law
Jay Nathwani
Partner
Construction Law
John Margie
Partner
Construction Law
Joshua Strub
Partner
Construction Law
Leah Mangano
Associate
Construction LawCivil Litigation & Dispute Resolution
Rosario Carnovale
Associate
Construction Law
Sharon Sam
Partner
Construction LawCivil Litigation & Dispute Resolution
Simren Sihota
Associate
Construction Law
This firm’s lawyers at a glance
- Called to the bar
- 1995–2025 · median 5 years in practice 8 of 10 lawyers
- Law schools
- Queen's University (2), University of Western Ontario (2), University of Ottawa, University of Pretoria, University of Toronto 7 of 10 lawyers
Who handles what
The neighbourhood
Margie Strub's office is in the Yonge Eglinton Centre, at Yonge and Eglinton in midtown Toronto. The 30 storey tower opened in 1974 and went through a major rebuild completed in 2016, when seven floors, a new glass curtain wall and a rooftop patio were added. For a construction law practice whose clients often come from job sites across the GTA and beyond, the building's underground tunnel straight to Eglinton subway station means a meeting downtown doesn't require driving in or hunting for parking.
Frequently asked questions
- I'm a contractor and a client is holding back money I'm owed. Can Margie Strub help?
- Yes. The firm's practice areas include contracts and disputes, and its lawyers have written guides on holdback and lien claims for contractors and suppliers under Ontario's Construction Act.
- Does Margie Strub represent owners and developers, or only contractors?
- Both. The firm advises owners, developers, contractors, subcontractors and sureties across the construction lifecycle, not just one side of the industry.
- Can Margie Strub help resolve a dispute through adjudication instead of going to court?
- Adjudication is one of the firm's listed practice areas, alongside Disputes, for resolving construction issues without a full court proceeding.
- What kinds of construction projects has the firm worked on?
- Its lawyers have handled matters involving residential, infrastructure, industrial and commercial construction, including hydroelectric projects, pipelines, mines, power plants, hospitals and transportation infrastructure.
- Does the firm only handle disputes, or can it help draft and review construction contracts before a problem comes up?
- Both. Its listed practice areas include contracts, collaborative contracting and project advice as well as disputes.
- How big is Margie Strub and where is it located?
- The firm has about ten lawyers and is based in Toronto, with an office in the Yonge Eglinton Centre at 2300 Yonge Street.
Where to find them
2300 Yonge St, Suite 2001, Mailbox 2331, Toronto, Ontario M4P 1E4
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