- Bunge Hamilton Canada v United Food and Commercial Workers Canada, Local 175 (Representing Bunge Hamilton Canada in an arbitration in the matter of a policy grievance objecting to a mandatory vaccine policy)
- Carpenters’ District Council of Ontario, United Brotherhood of Carpenters and Joiners of America v. Construction Demathieu & Bard (CDB) Inc., LIUNA, et al. – OLRB Case No: 1923-18-U, 1924-18-R and 2233-18-U
- Johnson Controls Canada LP v Teamsters Local Union 419, 2022 (ON LRB)
- Ontario Public Service Employees Union v Rouge Valley Health System, 2017 CanLII 35613 (ON LRB)
- I.B.E.W. Construction Council of Ontario v Labour Ready, 2016 CanLII 49532 (ON LRB)
- Canadian Union of Skilled Workers v Labourers’ International Union of North America, 2016 CanLII 46791 (ON LRB)
- Carpenters’ District Council of Ontario, United Brotherhood of Carpenters and Joiners of America v. Brown Daniels Associates Inc., 2016 CanLII 46789 (ON LRB)
- Ontario Public Service Employees Union v St. Elizabeth Health Care and Canadian Mental Health Association, 2016 CanLII 6536 (ON LRB)
Patrick Groom is designated as a Certified Specialist in Labour Law by the Law Society of Ontario. With more than 20 years’ experience in labour relations, he has developed particular expertise in construction labour relations and litigation, and health care restructuring.
Frequently appearing before all levels of court in Ontario, Patrick also represents clients at the Ontario Labour Relations Board, the Ontario Human Rights Tribunal, the Workplace Safety and Insurance Appeals Tribunal, the Nova Scotia Labour Relations Board, and the Newfoundland & Labrador Labour Relations Agency, as well as in private arbitrations across Canada.
Patrick advises on the development of proactive labour relations strategies that promote positive employee engagement, effectively respond to union organizing, institute best practices for occupational health and safety, and resolve of human rights issues in the workplace.
As an advisor with the Law Society of Ontario’s Coach and Advisor Network, Patrick enjoys mentoring and assisting fellow members of the bar.
Expertise
Representative Matters
Speaking Engagements
Navigating Vaccine Mandates Planning, presented to the Association of Consulting Engineering Companies members
March 1, 2022Navigating Vaccine Mandates Planning, presented to the Association of Consulting Engineering Companies members
January 19, 2022Navigating Vaccine Mandates Planning, presented to the Association of Consulting Engineering Companies members
October 5, 2021Responses to Select Questions from the "The Impact of COVID-19 on the Construction Industry: McMillan Answers Your Questions" Webinar
April 3, 2020 DOWNLOAD FILEGovernment Relations Update Ontario Electrical league, 2017 Electrical Industry Conference
May 5, 2018Bill 148, Fair Workplaces, Better Jobs Act, 2017 Ontario Electrical League, 2018 Electrical Industry Conference
April 19, 2018Bill 148, Fair Workplaces, Better Jobs Act, 2017 Ontario Electrical League, Durham Chapter
March 28, 2018Bill 148, Fair Workplaces, Better Jobs Act, 2017 Ontario Electrical League, Ottawa Chapter
February 27, 2018Legalization of Marijuana & Impact on Employers in the Construction Industry Landscape Ontario
February 9, 2018Bill 132: Sexual Violence & Harassment Action Plan Act Ontario General Contractors Association
April 7, 2017Reducing Turnover, Retaining Talent and Performance Management Landscape Ontario
February 21, 2017Drugs and Alcohol in the Workplace Barrie Construction Association
June 21, 2016The Employment Standards Act and Other Legislative Obligations Barrie Construction Association
June 8, 2016News
Media Mentions
- “Collective bargaining amid economic uncertainty: labour lawyer’s perspective,” by Jeffrey R. Smith, Canadian HR Reporter (May 8, 2025)
- “Canada Post workers back on the job by Tuesday,” CTV News (December 16, 2024)
- “Special mediator leading Canada Post negotiations,” CTV News (November 18, 2024)
- “The long reach of LOU-8: Toronto-area union contractors’ masonry agreement stretches across the province,” by Mark Buckshon, Ontario Constuction Report (May 4, 2024)
- “What’s in store for the federal public service in 2024?“, by Catherine Morrison, The Ottawa Citizen (January 3rd, 2024)
- “Supreme Court construction site liability ruling has far-reaching implications,” by Sean Fine, Globe and Mail (November 10, 2023)
- “Top 3 Tonight with Merella Fernandez – Impact of Strike,” CTV News (April 27, 2023)
- “Why work-from-home rules are a red line for the government,” by Ryan Tumilty, National Post (April 27, 2023)
- “Civil servants’ push for remote work has Canadian employers watching anxiously,” by Randy Thanthong-Knight, Bloomberg News (April 26, 2023)
- “Federal workers’ strike reignites remote work debate,” by Global National (April 20, 2023)
- “Tax season could be chaos as strike threatens to bring CRA to ‘standstill‘,” by Christopher Nardi, National Post (March 22, 2023)
- “Dump truck job action extends to third week“, by Don Wall, Daily Commercial News (April 7, 2022)
- “48-hour notice for sick day called unreasonable” by Anita Balakrishnan, Law Times (January 21, 2019)
- “ICI sector preps for open season amid uncertainties“, Daily Commercial News by ConstructConnect (January 31, 2019)
Rankings & Recognition
- Recognized by Best Lawyers in Canada (2025) as a leading lawyer in the area of Labour and Employment Law
- Brad Hodgson Civil Litigation Award, 2006
- Labour & Employment Law Achievement Award, 2006
Directorships & Affiliations
- Advisor, Coach and Advisor Network, Law Society of Ontario
- Member, Thomas Moore Lawyers’ Guild
- Member, Ontario Bar Association, Labour & Employment, Constitutional, Civil Liberties and Human Rights, and Construction Law
Education & Admissions
Publications
- “Don’t blame Doug Ford for using the notwithstanding clause – it was the only logical solution,” The Globe and Mail (November 7, 2022)
- “Mandatory COVID-19 Vaccine Policy Primer for General Contractors,” The Generals, p.27 (Spring/Summer 2021)
- “Sick, Lies, and Questionnaire: Arbitrators Uphold Terminations of Employees Who Breached COVID-19 Safety Protocols,” Employment and Labour Law Reporter, LexisNexis (February 2021)
- “COVID-19: Strange new world of OHS issues at construction sites,” Piling Canada, p.67-70 (September 2020)
- “The Employment Law Review,” 7th Ed., Chapter 8 “Canada” (April 2011)
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