The Specialization Crucible: Why Infrastructure Litigators Are Migrating and How Bay Street Is Adapting

When seasoned construction litigator Richard MacGregor departed Miller Thomson to join Singleton Urquhart Reynolds Vogel as a partner in Toronto, it signaled far more than an ordinary lateral move. In Canada’s increasingly volatile major projects landscape—where multi-billion-dollar transit expansions, hospital redevelopments, clean energy transitions, and civil infrastructure overhauls routinely run into project delays, procurement stalemates, and contractor insolvencies—the premium placed on hyper-focused dispute resolution has reached a generational high. MacGregor’s jump from a broad, full-service national firm to an elite, sector-dedicated construction powerhouse reflects a wider structural shift in how Canadian law firms capture high-margin, technically demanding litigation mandates.

At the same time, this talent realignment is taking place against the backdrop of an acute squeeze on senior commercial litigators across Ontario. With veteran courtroom practitioners being elevated to the judiciary, global mega-firms repositioning their leadership structures, and provincial civil justice systems rewriting procedural rulebooks to grapple with digital evidence and institutional backlogs, commercial litigators are finding themselves navigating an intensely competitive marketplace.

The Megaproject Squeeze: Why Sector Specialization Wins the Mandate

The business model of Canadian infrastructure delivery has fundamentally transformed over the past decade. The era of simple lump-sum design-bid-build arrangements has largely been superseded by complex Public-Private Partnerships (P3s), progressive design-build frameworks, and integrated project delivery (IPD) contracts. While these delivery models theoretically allocate risk more equitably, in practice they generate sprawling, multi-party disputes involving public owners, international consortia, engineering consultants, and tiered subcontractors.

For litigators like MacGregor, navigating these disputes requires an intricate synthesis of specialized statutory regimes (such as prompt payment and mandatory adjudication frameworks under provincial construction statutes), forensic schedule delay analyses, quantum meruit claims, and bespoke arbitration clauses. General commercial litigators, however talented, often struggle to match the specialized agility of dedicated construction boutiques.

"Clients funding or building critical infrastructure no longer want generalists who need three weeks to learn the mechanics of a critical path delay analysis or the nuances of an adjudication appeal. They demand trial lawyers who live and breathe project disputes from procurement to substantial completion."
— Bay Street Litigation Practice Chair

By securing MacGregor, Singleton Urquhart Reynolds Vogel sharpens its competitive wedge in Ontario’s infrastructure dispute market. The move highlights an undeniable trend: specialized litigation boutiques are aggressively pitching themselves to corporate boards, public authorities, and institutional lenders as lean, conflict-free, and technically superior alternatives to the mega-firms.

The Talent Drain: Bench Appointments Deplete Senior Litigation Ranks

The aggressive lateral recruitment seen in the construction and commercial litigation bar is further fueled by a constant drain of senior talent into the judiciary. Law firms across Toronto are scrambling to replace top-flight advocates who have accepted judicial commissions.

Only recently, Federal Justice Minister Sean Fraser announced the appointments of veteran commercial litigators Tina H. Lie and Rahat Godil to the Ontario Superior Court of Justice. Both Lie and Godil were respected senior counsel with distinguished track records in complex commercial advocacy, professional regulation, and multi-faceted dispute resolution. While their elevation reinforces the intellectual calibre and trial experience of the Superior Court bench, it simultaneously leaves sizable gaps in Bay Street’s senior litigation capacity.

When premier trial advocates step onto the bench, firms cannot easily backfill those roles from within. Junior partners, while adept in case management and motions practice, frequently lack the first-chair trial reputation required to anchor nine-figure dispute files. Consequently, the market enters a zero-sum lateral cycle where established partners like MacGregor are courted by firms seeking immediate courtroom authority.

Divergent Playbooks: The Boutique Focus vs. The Global Network

MacGregor’s move to a dedicated infrastructure practice highlights one pole of a diverging market strategy. The opposite approach is epitomized by global law firm giant Dentons, which recently demonstrated its scale by appointing four Canadian partners across Toronto and Vancouver to lead international practice and sector groups. While Dentons harnesses an expansive, cross-border footprint to serve institutional clients across multiple continents, specialized boutiques focus entirely on dominant depth in specific domestic verticals.

For corporate clients, the choice between these two structural models depends largely on the nature of the mandate:

• Multi-Jurisdictional Cross-Border Operations: Global giants offer frictionless access to cross-border capital markets, tax structures, and multi-country regulatory clearances.
• Domestic Megaproject Disputes: Boutique platforms offer freedom from complex client conflicts, deep local tribunal familiarity, and dedicated construction litigation machinery unburdened by broader corporate overhead.

The New Courtroom Reality: Evidence, Procedure, and the Regulatory Net

Litigators making lateral moves are not merely shifting desks; they are stepping into a dispute resolution environment that is modernizing at breakneck speed. Counsel operating before Canadian tribunals and trial courts face a fundamentally transformed set of procedural and regulatory demands.

1. Synthetic Media and Evidentiary Integrity

In large-scale construction cases, contemporary document production involves millions of emails, drone survey footage, Building Information Modeling (BIM) revisions, and computer-generated scheduling simulations. Managing these files has become vastly more complex as Ontario’s Civil Rules Committee completed draft procedural rules governing synthetic media and AI-generated evidence.

Litigation teams must now establish clear chains of custody for algorithmic project models and digital site records. The risk of encountering synthetic alterations or unsubstantiated algorithmic assertions requires litigators to develop rigorous digital verification protocols before ever setting foot in a pre-trial conference.

2. Contractual Scrutiny and Statutory Baselines

Commercial and employment relationships are facing elevated scrutiny across the appellate courts. As reinforced by recent jurisprudence from the Ontario Court of Appeal striking down termination provisions conflicting with the Canada Labour Code, contractual drafting that seeks to circumvent statutory minimums will be rendered entirely void. Whether drafting EPC contracts, subcontractor agreements, or senior executive employment packages, litigation counsel must ensure their documents withstand stringent statutory stress tests.

3. Institutional Resourcing Under Budget 2026

The operational framework of Canadian practice is also being reshuffled by federal fiscal initiatives. The federal government’s Budget 2026 allocated critical funding toward clearing court backlogs, financing bilingual ruling translations, and reforming tax withholding structures that directly impact partner distributions and international legal retainers. While these investments aim to ease systemic trial delays, firms must adapt their practice management and partnership accounting to the new tax environment.

Strategic Implications for Canadian Law Firm Leadership

As the market polarizes between global mega-networks and boutique specialists, managing partners and litigation department heads should consider several strategic imperatives:

1. Re-Evaluate Lateral Retention Models: Top infrastructure and commercial partners need more than competitive profit points; they require platforms that provide dedicated junior talent, technical expert networks, and an absence of corporate client conflicts that stifle high-stakes litigation.
2. Invest in Digital-Evidentiary Fluency: With Ontario formalizing procedural rules on synthetic evidence, firms must equip their litigation teams with forensic technical support to authenticate complex electronic and algorithmic project data.
3. Harden Contractual Frameworks Against Statutory Scrutiny: Litigators and commercial transactional teams must collaborate more closely to ensure standard-form contracts do not fall foul of evolving appellate standards on statutory minimums.

The migration of Richard MacGregor to Singleton Reynolds captures a clear reality in Canadian legal practice: as national infrastructure commitments mount, the disputes they produce are too complex and high-stakes for generalist handling. Firms that build disciplined, sector-specific dispute capabilities will continue to capture the market's most lucrative mandates, while traditional full-service partnerships must continually defend their benches against specialized rivals.