Lenczner Slaght
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Toronto dispute resolution boutique Lenczner Slaght houses a growing contentious construction practice, which added nine new clients in 2024/25. The group acts for an impressive roster of construction companies, developers, project owners and insurers on the full range of judicial and arbitral proceedings, with a strong record in claims related to large-scale transport projects. Andrew Parley, who is also a qualified engineer, anchors a team that includes high-profile trial lawyer Matthew Sammon and newly promoted partner (January 2025) Aaron Grossman.
Legal 500 Editorial commentary
Key clients
- Green Infrastructure Partners
- Crosslinx Transit Solutions Constructors
Work highlights
Represented AtkinsRéalis in a claim brought by Pomerleau connected to the Trillium Line Extension Ottawa, Stage 2 LRT Project.

