Called to the Bar

Ontario (2017)

Education

J.D., Osgoode Hall Law School, 2016
MSc, London School of Economics and Political Science, 2008
B.A. (Honours), McGill University, 2006

Affiliations

Canadian Bar Association
Ontario Bar Association
The Advocates' Society
Ontario Expropriation Association

Languages

English
French

Alyssa Armstrong

Associate

Practice Areas

Administrative & Public Law

Litigation & Dispute Resolution

Privacy & Access to Information

Alyssa Armstrong is an Associate in the Municipal, Development and Land Use Planning Practice Group at WeirFoulds. She represents private and public sector clients in a wide array of public law matters, with a particular emphasis on expropriation, municipal and administrative law.

Alyssa provides strategic advice to municipalities and public authorities with respect to expropriation related issues. She also represents landowners from across Ontario in a broad range of expropriation and real property litigation matters. She regularly appears before the Ontario Superior Court and the Ontario Land Tribunal.

Prior to joining WeirFoulds, Alyssa was Counsel at the Crown Law Office Civil, the central civil litigation branch of the Government of Ontario, where she represented government ministries and officials, with a particular focus on expropriation, administrative law and judicial review of government decisions.

Alyssa’s clients benefit from her client-centred approach and her insights gained through substantial practical experience in the realm of communications and public policy. Before she became a lawyer, Alyssa advised public office holders with respect to a broad array of policy issues, including in relation to health, education, infrastructure and transportation projects.

Experience

Ontario College of Social Workers and Social Service Workers v Burden, 2024 ONCSWSSW 3

Ontario College of Social Workers and Social Service Workers v. Finlay, 2023 ONCSWSSW 7

Ontario College of Social Workers and Social Service Workers v. Fraser, 2023 ONCSWSSW 4

Ontario College of Social Workers and Social Service Workers v. Essa Rageh Egal, 2022 ONCSWSSW 8

Royal College of Dental Surgeons of Ontario v. Park, April 12, 2022, October 11, 2022 (RCDSO)

College of Early Childhood Educators v. Cathy Rae-Ann McLean, 2022 ONCECE 1

Denham v. Ontario College of Social Workers, 2021 ONSC 5149 (Div. Ct.)

Royal College of Dental Surgeons of Ontario v Park, April 12, 2021 (RCDSO)

Ontario College of Social Workers and Social Service Workers v Templer Teran, 2021 ONCSWSSW 1

Ontario College of Social Workers and Social Service Workers v Goulard, 2020 ONCSWSSW 6

Ontario College of Social Workers and Social Service Workers v Scott, 2020 ONCSWSSW 5

Yasin v. Ontario, 2018 ONCA 417

R. v. Coutts, 2018 ONSC 974

Catholic Children’s Aid Society of Toronto v. A.T., 2018 ONCJ 720

Stewart v. Ontario, 2018 ONSC 3179

Placeholder to hide

Ontario College of Social Workers and Social Service Workers v Burden, 2024 ONCSWSSW 3

Ontario College of Social Workers and Social Service Workers v. Finlay, 2023 ONCSWSSW 7

Ontario College of Social Workers and Social Service Workers v. Fraser, 2023 ONCSWSSW 4

Ontario College of Social Workers and Social Service Workers v. Essa Rageh Egal, 2022 ONCSWSSW 8

Royal College of Dental Surgeons of Ontario v. Park, April 12, 2022, October 11, 2022 (RCDSO)

College of Early Childhood Educators v. Cathy Rae-Ann McLean, 2022 ONCECE 1

Denham v. Ontario College of Social Workers, 2021 ONSC 5149 (Div. Ct.)

Royal College of Dental Surgeons of Ontario v Park, April 12, 2021 (RCDSO)

Ontario College of Social Workers and Social Service Workers v Templer Teran, 2021 ONCSWSSW 1

Ontario College of Social Workers and Social Service Workers v Goulard, 2020 ONCSWSSW 6

Ontario College of Social Workers and Social Service Workers v Scott, 2020 ONCSWSSW 5

Yasin v. Ontario, 2018 ONCA 417

R. v. Coutts, 2018 ONSC 974

Catholic Children’s Aid Society of Toronto v. A.T., 2018 ONCJ 720

Stewart v. Ontario, 2018 ONSC 3179

Alyssa Armstrong is an Associate in the Municipal, Development and Land Use Planning Practice Group at WeirFoulds. She represents private and public sector clients in a wide array of public law matters, with a particular emphasis on expropriation, municipal and administrative law.

Alyssa provides strategic advice to municipalities and public authorities with respect to expropriation related issues. She also represents landowners from across Ontario in a broad range of expropriation and real property litigation matters. She regularly appears before the Ontario Superior Court and the Ontario Land Tribunal.

Prior to joining WeirFoulds, Alyssa was Counsel at the Crown Law Office Civil, the central civil litigation branch of the Government of Ontario, where she represented government ministries and officials, with a particular focus on expropriation, administrative law and judicial review of government decisions.

Alyssa’s clients benefit from her client-centred approach and her insights gained through substantial practical experience in the realm of communications and public policy. Before she became a lawyer, Alyssa advised public office holders with respect to a broad array of policy issues, including in relation to health, education, infrastructure and transportation projects.

Experience

Ontario College of Social Workers and Social Service Workers v Burden, 2024 ONCSWSSW 3

Ontario College of Social Workers and Social Service Workers v. Finlay, 2023 ONCSWSSW 7

Ontario College of Social Workers and Social Service Workers v. Fraser, 2023 ONCSWSSW 4

Ontario College of Social Workers and Social Service Workers v. Essa Rageh Egal, 2022 ONCSWSSW 8

Royal College of Dental Surgeons of Ontario v. Park, April 12, 2022, October 11, 2022 (RCDSO)

College of Early Childhood Educators v. Cathy Rae-Ann McLean, 2022 ONCECE 1

Denham v. Ontario College of Social Workers, 2021 ONSC 5149 (Div. Ct.)

Royal College of Dental Surgeons of Ontario v Park, April 12, 2021 (RCDSO)

Ontario College of Social Workers and Social Service Workers v Templer Teran, 2021 ONCSWSSW 1

Ontario College of Social Workers and Social Service Workers v Goulard, 2020 ONCSWSSW 6

Ontario College of Social Workers and Social Service Workers v Scott, 2020 ONCSWSSW 5

Yasin v. Ontario, 2018 ONCA 417

R. v. Coutts, 2018 ONSC 974

Catholic Children’s Aid Society of Toronto v. A.T., 2018 ONCJ 720

Stewart v. Ontario, 2018 ONSC 3179

Placeholder to hide

Ontario College of Social Workers and Social Service Workers v Burden, 2024 ONCSWSSW 3

Ontario College of Social Workers and Social Service Workers v. Finlay, 2023 ONCSWSSW 7

Ontario College of Social Workers and Social Service Workers v. Fraser, 2023 ONCSWSSW 4

Ontario College of Social Workers and Social Service Workers v. Essa Rageh Egal, 2022 ONCSWSSW 8

Royal College of Dental Surgeons of Ontario v. Park, April 12, 2022, October 11, 2022 (RCDSO)

College of Early Childhood Educators v. Cathy Rae-Ann McLean, 2022 ONCECE 1

Denham v. Ontario College of Social Workers, 2021 ONSC 5149 (Div. Ct.)

Royal College of Dental Surgeons of Ontario v Park, April 12, 2021 (RCDSO)

Ontario College of Social Workers and Social Service Workers v Templer Teran, 2021 ONCSWSSW 1

Ontario College of Social Workers and Social Service Workers v Goulard, 2020 ONCSWSSW 6

Ontario College of Social Workers and Social Service Workers v Scott, 2020 ONCSWSSW 5

Yasin v. Ontario, 2018 ONCA 417

R. v. Coutts, 2018 ONSC 974

Catholic Children’s Aid Society of Toronto v. A.T., 2018 ONCJ 720

Stewart v. Ontario, 2018 ONSC 3179

Called to the Bar

Ontario (2017)

Education

J.D., Osgoode Hall Law School, 2016
MSc, London School of Economics and Political Science, 2008
B.A. (Honours), McGill University, 2006

Affiliations

Canadian Bar Association
Ontario Bar Association
The Advocates' Society
Ontario Expropriation Association

Languages

English
French

Speaking Engagements

Speaker, “What Leasing Lawyers Need to Know About Expropriation”, ICSC+Canadian Law 2025, Toronto, ON, May 1, 2025
Speaker, “Navigating Current Legal and Regulatory Issues”, PM Springfest 2025, Toronto, ON, April 24, 2025
Speaker, “Off-Duty” Conduct: Where is the Line Between Professional and Personal?”, CNAR Spring Workshops Series, Online, April 20, 2023
Speaker, “What Constitutes an Adequate Investigation: Kastner v. Health Professions Appeal and Review Board,” Ontario Bar Association Health Law Call-in Series, February 15, 2023
Speaker, “Tackling Delays in Administrative Law: Understanding the Impact of Abrametz,” Ontario Bar Association, September 29, 2022
Speaker, “Proceed with Caution! The Criticism of Transparency,” Canadian Network of Agencies for Regulation Annual Conference, Charlottetown, PEI, October 26, 2022
Speaker, “Sexual Abuse Proceedings”, WeirFoulds Professional Self-Regulatory Body industry seminar, Online, March 2021

Latest Insight & News

News

WeirFoulds welcomes three new associates

Mar 4, 2019

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