Kaeleigh has extensive experience in all aspects of competition and foreign investment law and has successfully advised on many of Canada’s most high profile and complex transactions.
As a trusted advisor, Kaeleigh’s competition law expertise includes mergers and acquisitions, strategic alliances and joint ventures, abuse of dominance, pricing and distribution matters, and marketing and advertising. Kaeleigh has experience in conducting internal investigations and assisting clients in responding in real-time to investigations by the Competition Bureau and other agencies. She also provides strategic advice relating to foreign investment matters, including net benefit and national security reviews under the Investment Canada Act.
Kaeleigh represents clients across a broad range of industries, including energy and mining, manufacturing, entertainment and media, consumer products and retail, transportation, agriculture, technology, telecommunications and real estate.
She is active in the National Competition Law and Foreign Investment Review Section of the Canadian Bar Association. Kaeleigh is a past Chair of the Foreign Investment Review Committee, the Reviewable Matters/Unilateral Conduct Committee, the Mergers Committee, the Legislation and Competition Policy Committee, and the Young Lawyers Committee. She is also a past Chair of the Canadian Bar Association Competition Law Spring Symposium.
Kaeleigh has published articles and spoken on various competition law and foreign investment topics. She is recognized by Chambers Canada, Who’s Who Legal, Best Lawyers in Canada and The Legal 500 publications.
Representative Work
- Medici Technologies Inc.
Medici Technologies Inc. (dba Livewell) in its sale to Hims & Hers
- Laurentian Bank
Laurentian Bank in its sale of its retail and SME banking portfolios to National Bank of Canada and acquisition by Fairstone Bank
- Bird Construction
Bird Construction in its $82.3-million acquisition of Fraser River Pile & Dredge
- Westbrick Energy Ltd.
Westbrick Energy Ltd. in its $1.1-billion acquisition by Vermilion Energy Inc.
- 180 Degree Capital
180 Degree Capital Corp. in its merger with Mount Logan Capital Inc.
- NOVA Chemical Corporation
NOVA Chemicals Corporation in its pricing of a private offering of US$400 million of senior unsecured notes
- Centerbridge Partners
Centerbridge Partners in its acquisition of Precinmac LP
- Chevron Canada Limited
Chevron Canada Limited on the sale of its interest in the Athabasca Oil Sands Project and the Kaybob Duvernay Shale Gas Project to Canadian Natural Resources Limited for US$6.5 billion
- Cents
Cents in its acquisition of Laundroworks
- Chorus Aviation
Chorus Aviation in the sale of its Regional Aircraft Leasing Segment
- Béton Provincial
Béton Provincial in connection with its acquisition of CRH Canada Group Inc.
- Emera
Emera Inc. in the sale of its interest in the Labrador Island Link
- Battery Ventures
Battery Ventures in its $150 million acquisition of TrueContext Corporation
- WT Microelectronics
WT Microelectronics in its acquisition of Future Electronics for US$3.8 billion
- Xos
Xos in its business combination with ElectraMeccanica
- Boart Longyear Company
Boart Longyear in the sale of its shares to American Industrial Partners Capital Fund
- ConocoPhillips
ConocoPhillips in its acquisition of the remaining Surmont interest from TotalEnergies EP Canada Ltd. for approximately $3.7 billion
- GaN Systems Inc.
GaN Systems Inc. in its US$830 million acquisition by Infineon Technologies
- Loopio Inc.
Loopio Inc. in its acquisition of Avnio
- WeCommerce Holdings
WeCommerce in its $962 million business combination with Tiny Capital
- M3-Brigade Acquisition III Corp.
M3-Brigade Acquisition III Corp. in its US$950-million business combination with Greenfire Resources Inc.
- Rocky Mountain Equipment
Rocky Mountain Equipment in its acquisition of Robertson Implements
- Energy Transfer Canada
Energy Transfer Canada in connection with Pembina Pipeline Corporation and KKR’s joint venture to merge Western Canadian processing assets
- Angus Systems
Angus Systems in its acquisition by MRI Software
- Goldman Sachs Asset Management
Goldman Sachs Asset Management in its US$250 million investment in Hydrostor
- Microsoft in its US$68.7 billion acquisition of Activision Blizzard
- Entertainment One in its US$4 billion announced acquisition by Hasbro
- Concert Infrastructure Purchase of Majority Interest in Iqaluit Airport
- Intelex in its $570 million acquisition by Industrial Scientific
- TD Bank in connection with Air Canada’s acquisition of Aimia Canada
- Office Depot Inc. in its US$1 billion acquisition of THL Portfolio Holdings Corp.
- Husky Energy Inc. in its proposed acquisition of MEG Energy Corp. for $6.4 billion
- Mitel in its sale to affiliates of Searchlight Capital Partners for US$2 billion
- Corus Entertainment Inc. in the proposed sale of specialty channels to Bell Media Inc. for approximately $200 million
- Whistler Blackcomb Holdings Inc. in its $1.4 billion acquisition by Vail Resorts
- Constellation Brands, Inc. in the sale of its Canadian wine business to Ontario Teachers’ Pension Plan for approximately $1.03 billion
- ChemChina in connection with its US$43 billion acquisition of Syngenta AG.
- TELUS Corporation in connection with its proposed acquisition of Manitoba assets from Bell upon closing of the Bell-MTS transaction
- iCON Infrastructure in its agreement to acquire Capstone Infrastructure for $480 million
- Procter & Gamble Inc. in its US $12.5 billion agreement to merge part of its fragrances, hair colour and colour cosmetics business with Coty Inc.
- The ADT Corporation in its proposed US $7 billion sale to Apollo
- Canadian Oil Sands Limited in its response to Suncor Energy Inc’s unsolicited takeover bid valued at $6.6 billion
- Apax Partners/Azelis Group in connection with the acquisition of specialty chemical distributor Koda Distribution Group
- Panasonic Healthcare in connection with its proposed US$1.1 billion acquisition of Bayer’s diabetes care business
- TPG Capital L.P. in its acquisition of a majority stake in Cirque du Soleil
- Tim Hortons Inc. in its $12.5 billion merger with Burger King, which will create a new global powerhouse restaurant company based in Canada
- Manulife Financial Corporation in its $4-billion acquisition of the Canadian-based operations of Standard Life plc. The deal combines Manulife, one of the largest insurance companies in the world, and Standard Life Canada, the country’s fifth-largest insurer
- Canadian counsel to JPMorgan Chase & Co. in the sale of its physical commodities business to Mercuria Energy Group Limited, a global energy and commodities trading company, for $3.5 billion
- Devon Canada in the disposition of some of its Canadian conventional assets to Canadian Natural Resources Limited for $3.125 billion
- Entertainment One in its acquisition of Alliance Films
- Canadian Bankers Association in an application by Commissioner of Competition for an order under section 76 of the Competition Act against Visa Canada Corporation and MasterCard International Incorporated
- Chartwell Seniors Housing REIT in its proposed acquisition of a seniors housing portfolio in a 50/50 co-ownership with Health Care REIT
- The London Stock Exchange in its proposed merger with TMX Group
- Winsway Coking Coal Holdings Ltd. and Marubeni Corporation in their proposed $1 billion acquisition of Grande Cache Coal Corp.
- Walter Energy in its proposed $3.3 billion acquisition of Western Coal Corp.
- Canwest Global Communications in connection with the sale of each of its broadcasting businesses and its newspaper and publishing businesses
- ConocoPhillips in the sale of its interest in the Syncrude joint venture to Sinopec
- World Color Press Inc. in its $1.4 billion business combination with Quad/Graphics, Inc.
- NOVA Chemicals Corp. in its US$2.3 billion acquisition by International Petroleum Investment Company (Abu Dhabi)
Medici Technologies Inc. (dba Livewell) in its sale to Hims & Hers
Laurentian Bank in its sale of its retail and SME banking portfolios to National Bank of Canada and acquisition by Fairstone Bank
Bird Construction in its $82.3-million acquisition of Fraser River Pile & Dredge
Westbrick Energy Ltd. in its $1.1-billion acquisition by Vermilion Energy Inc.
180 Degree Capital Corp. in its merger with Mount Logan Capital Inc.
- NOVA Chemical Corporation
NOVA Chemicals Corporation in its pricing of a private offering of US$400 million of senior unsecured notes
- Centerbridge Partners
Centerbridge Partners in its acquisition of Precinmac LP
- Chevron Canada Limited
Chevron Canada Limited on the sale of its interest in the Athabasca Oil Sands Project and the Kaybob Duvernay Shale Gas Project to Canadian Natural Resources Limited for US$6.5 billion
- Cents
Cents in its acquisition of Laundroworks
- Chorus Aviation
Chorus Aviation in the sale of its Regional Aircraft Leasing Segment
- Béton Provincial
Béton Provincial in connection with its acquisition of CRH Canada Group Inc.
- Emera
Emera Inc. in the sale of its interest in the Labrador Island Link
- Battery Ventures
Battery Ventures in its $150 million acquisition of TrueContext Corporation
- WT Microelectronics
WT Microelectronics in its acquisition of Future Electronics for US$3.8 billion
- Xos
Xos in its business combination with ElectraMeccanica
- Boart Longyear Company
Boart Longyear in the sale of its shares to American Industrial Partners Capital Fund
- ConocoPhillips
ConocoPhillips in its acquisition of the remaining Surmont interest from TotalEnergies EP Canada Ltd. for approximately $3.7 billion
- GaN Systems Inc.
GaN Systems Inc. in its US$830 million acquisition by Infineon Technologies
- Loopio Inc.
Loopio Inc. in its acquisition of Avnio
- WeCommerce Holdings
WeCommerce in its $962 million business combination with Tiny Capital
- M3-Brigade Acquisition III Corp.
M3-Brigade Acquisition III Corp. in its US$950-million business combination with Greenfire Resources Inc.
- Rocky Mountain Equipment
Rocky Mountain Equipment in its acquisition of Robertson Implements
- Energy Transfer Canada
Energy Transfer Canada in connection with Pembina Pipeline Corporation and KKR’s joint venture to merge Western Canadian processing assets
- Angus Systems
Angus Systems in its acquisition by MRI Software
- Goldman Sachs Asset Management
Goldman Sachs Asset Management in its US$250 million investment in Hydrostor
- Microsoft in its US$68.7 billion acquisition of Activision Blizzard
- Entertainment One in its US$4 billion announced acquisition by Hasbro
- Concert Infrastructure Purchase of Majority Interest in Iqaluit Airport
- Intelex in its $570 million acquisition by Industrial Scientific
- TD Bank in connection with Air Canada’s acquisition of Aimia Canada
- Office Depot Inc. in its US$1 billion acquisition of THL Portfolio Holdings Corp.
- Husky Energy Inc. in its proposed acquisition of MEG Energy Corp. for $6.4 billion
- Mitel in its sale to affiliates of Searchlight Capital Partners for US$2 billion
- Corus Entertainment Inc. in the proposed sale of specialty channels to Bell Media Inc. for approximately $200 million
- Whistler Blackcomb Holdings Inc. in its $1.4 billion acquisition by Vail Resorts
- Constellation Brands, Inc. in the sale of its Canadian wine business to Ontario Teachers’ Pension Plan for approximately $1.03 billion
- ChemChina in connection with its US$43 billion acquisition of Syngenta AG.
- TELUS Corporation in connection with its proposed acquisition of Manitoba assets from Bell upon closing of the Bell-MTS transaction
- iCON Infrastructure in its agreement to acquire Capstone Infrastructure for $480 million
- Procter & Gamble Inc. in its US $12.5 billion agreement to merge part of its fragrances, hair colour and colour cosmetics business with Coty Inc.
- The ADT Corporation in its proposed US $7 billion sale to Apollo
- Canadian Oil Sands Limited in its response to Suncor Energy Inc’s unsolicited takeover bid valued at $6.6 billion
- Apax Partners/Azelis Group in connection with the acquisition of specialty chemical distributor Koda Distribution Group
- Panasonic Healthcare in connection with its proposed US$1.1 billion acquisition of Bayer’s diabetes care business
- TPG Capital L.P. in its acquisition of a majority stake in Cirque du Soleil
- Tim Hortons Inc. in its $12.5 billion merger with Burger King, which will create a new global powerhouse restaurant company based in Canada
- Manulife Financial Corporation in its $4-billion acquisition of the Canadian-based operations of Standard Life plc. The deal combines Manulife, one of the largest insurance companies in the world, and Standard Life Canada, the country’s fifth-largest insurer
- Canadian counsel to JPMorgan Chase & Co. in the sale of its physical commodities business to Mercuria Energy Group Limited, a global energy and commodities trading company, for $3.5 billion
- Devon Canada in the disposition of some of its Canadian conventional assets to Canadian Natural Resources Limited for $3.125 billion
- Entertainment One in its acquisition of Alliance Films
- Canadian Bankers Association in an application by Commissioner of Competition for an order under section 76 of the Competition Act against Visa Canada Corporation and MasterCard International Incorporated
- Chartwell Seniors Housing REIT in its proposed acquisition of a seniors housing portfolio in a 50/50 co-ownership with Health Care REIT
- The London Stock Exchange in its proposed merger with TMX Group
- Winsway Coking Coal Holdings Ltd. and Marubeni Corporation in their proposed $1 billion acquisition of Grande Cache Coal Corp.
- Walter Energy in its proposed $3.3 billion acquisition of Western Coal Corp.
- Canwest Global Communications in connection with the sale of each of its broadcasting businesses and its newspaper and publishing businesses
- ConocoPhillips in the sale of its interest in the Syncrude joint venture to Sinopec
- World Color Press Inc. in its $1.4 billion business combination with Quad/Graphics, Inc.
- NOVA Chemicals Corp. in its US$2.3 billion acquisition by International Petroleum Investment Company (Abu Dhabi)
Latest Insights
-
Report June 28, 2024
The amended Canadian Competition Act: what businesses need to know
Following a series of high-profile amendments aimed at strengthening Canada’s competition law regime culminating in royal assent for Bill C-59 on...
Read more
-
Osler Update January 22, 2026
Competition Tribunal denies leave in first decision under new public-interest test for private applicants
The decision marks a crucial moment for private competition law enforcement in Canada.
Read more -
Report December 4, 2025
Navigating the new Competition Act: early impacts and emerging challenges
Transformative amendments to the Competition Act have been in force for just over a year and we are already seeing their impact in several areas.
Read more -
Osler Update June 25, 2025
Competition Bureau releases updated guidance on enforcement approach to property controls
The CPC Guidance published by the Competition Bureau advocates that firms use property controls only where justified.
Read more
Awards and Recognition
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Chambers Canada: Canada’s Leading Lawyers for Business: Recognized in Competition/Anti-trust (Nationwide)
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Legal 500: Recognized as a Next Generation Lawyer, Competition and Antitrust
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Best Lawyers in Canada: Recognized in Competition / Antitrust Law
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Canadian Legal Lexpert Directory: Recognized in Competition Law
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Who’s Who Legal: Recognized in Competition; Foreign Investment Control
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Who’s Who Legal Thought Leaders: Global Elite (Competition – Under 45 – Partners)
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Lexpert’s Leading 500 Cross-Border Lawyers: A Guide to Doing Business in Canada: Recognized in Competition
Media Mentions
-
Media Mentions July 2, 2024
Canada’s new greenwashing regulations: what you need to know – ARC Energy Ideas Podcast
On June 20, 2024, significant amendments to the Competition Act came into force, including a number of provisions related to misleading...
Read more -
Osler News December 6, 2022
Nine Osler lawyers recognized as Who’s Who Legal Thought Leaders: Global Elite 2023
Congratulations to nine of our lawyers for being recognized as 2023 Thought Leaders: Global Elite by Who’s Who Legal, in recognition of their...
Read more -
Osler News May 10, 2021
Kaeleigh Kuzma joins Osler’s Calgary office
Osler is pleased to announce that Kaeleigh Kuzma has joined the firm’s Calgary office.
Read more -
Osler News April 22, 2021
143 Osler lawyers recognized in the 2021 Canadian Lexpert Directory
Osler is proud to announce that 143 of our lawyers have been recognized in the 2021 edition of The Canadian Lexpert Directory, including 12 newly...
Read more
Speaking and Writing
Speaking Engagements
Canadian Bar Association Competition Law Online Symposium, “Lessons from Cineplex v. Cineworld – A Case Study”
Read more2022 Antitrust Law Spring Meeting, “Work It! Labour Market Collusion Globally”
Read moreCanadian Bar Association Competition Law Fall Online Symposium, “Competition Law, Policy, and the Digital Economy”
Read moreCanadian Bar Association Competition Law Spring Online Symposium, “Staying Ahead of the Curve: Advanced Topics in Mergers and Joint Ventures”
Read moreICN Annual Conference
Moderator, Unconventional Merger Remedies, May 7, 2025
CBA Competition Law Fall Conference
Speaker, Closing Plenary, October 27, 2023
The Canadian Bar Association: Registering for Settlement: Generic and Biosimilars
Moderator, February 28, 2023
University of Calgary Moot Team Coach for the Adam F. Fanaki Competition Law Moot
Published Work
“The Impact of Private Climate Change Litigation and Recent Competition Act Amendments on the Canadian Energy Sector: Regulatory and Legal Developments Shaping the Path Forward”, Alberta Law Review, Volume 63, Issue 2, November 2025 (Co-authored with Matthew M. Huys, Paula Olexiuk, Ankita Gupta and Logan Aitken)
Fundamentals of Canadian Competition Law (4th Ed), Chapter 15: Powers of Investigation, Canadian Bar Association, 2022, co-authored with Michelle Lally (Osler).
Credentials
Education
- Osgoode Hall Law School, LL.B.
- University of Saskatchewan, B.A. (Hons.)
Languages
- English
Professional Affiliations
- Canadian Bar Association, Competition Law and Foreign Investment Review Section, Chair of the Foreign Investment Review Committee
- Ontario Bar Association
- American Bar Association, Antitrust Section
- International Bar Association, Antitrust Section
- Law Society of Ontario
- Law Society of Alberta
- Women’s White Collar Defense Association
