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Overview

Tyler McDonough advises clients on large-scale commercial disputes. Organized, strategic and efficient, Tyler provides thoughtful advice to companies navigating complex disputes and works hard to achieve targeted and cost-effective outcomes.

With deep experience in "bet-the-company" litigation, Tyler has prepared for and acted in multiple months-long trials with hundreds of millions of dollars at stake. Tyler represents clients across industries and has particular experience advising energy and natural resources companies on dispute risk and resolution strategy. 

Tyler regularly appears before all levels of court in Alberta and has represented clients before the Supreme Court of Canada. In addition to his commercial litigation practice, Tyler has experience in utilities litigation, the law of policing and professional negligence and has appeared before multiple administrative tribunals.

In his spare time, Tyler enjoys travelling, spending time outside and running marathons.

Client Work

AdhMor, an oilfield waste management company, in its successful defense of a statutory appeal before the Alberta Court Appeal which upheld the Alberta Energy Regulator's decision that a First Nation lacked standing to request regulatory appeals of approvals issued for an oilfield waste management facility: Fort McMurray 468 First Nation v Alberta Energy Regulator, 2026 ABCA 197
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 812023 ABKB 214; 2025 ABKB 5372026 ABKB 147; 2026 ABKB 1272025 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 152Su & 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

Recognitions & Awards

Best Lawyers in Canada

Ones to Watch, Corporate and Commercial Litigation

Education & Bar Admissions

Education

  • University of Calgary, BSc, 2013
  • University of Alberta, JD, 2017, with distinction

Bar Admissions

  • Alberta, 2018