Tyler McDonough
Partner

Outline
Overview
Client Work
Secured a C$95 million settlement in a complex action advanced by several mining companies claiming the Government of Alberta’s policy reversal on coal mining resulted in the de facto expropriation of their mineral rights
Successfully compelled a former provincial cabinet minister to attend questioning in a matter involving the alleged expropriation of mineral leases: Cabin Ridge Project Limited v Alberta, 2025 ABCA 53 (leave to appeal to Supreme Court of Canada dismissed, 2025 CanLII 33162)
Representing the landlord in a successful claim for breach of lease against a tenant who had leased an entire 37 story office building and then vacated it with 12 years left on the lease, claiming that a minute amount of hazardous materials in building materials from decades earlier justified that decision. CNOOC Petroleum North America ULC v 801 Seventh Inc, 2025 ABKB 145; 2023 ABCA 97 ; 2021 ABQB 861; 2021 ABQB 81; 2023 ABKB 214; 2025 ABKB 537; 2026 ABKB 147; 2026 ABKB 127; 2025 ABKB 537
Representing the Chief of Police of the Calgary Police Service in many proceedings involving member discipline, fatality inquiries, and general litigation, including: Cheever v Alberta (Law Enforcement Review Board), 2022 ABCA 152, Su & Huang v Calgary (Police Service), 2024 ABLERB 01, and Barton v Calgary (Police Service), 2022 ABLERB 15
Successful in application for summary dismissal of claim for professional negligence: Van Grinsven v Kortbeek, 2022 ABQB 138
Successfully opposed application for summary judgment on behalf of a developer in a multimillion-dollar pre-construction condominium dispute: Schmidt Family Trust v Hon Towers Ltd., 2020 ABQB 150
Recognitions & Awards
Best Lawyers in Canada
Ones to Watch, Corporate and Commercial Litigation
Related Services
Education & Bar Admissions
Education
- University of Calgary, BSc, 2013
- University of Alberta, JD, 2017, with distinction
Bar Admissions
- Alberta, 2018
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