Catherine Beagan Flood, Canada

Ranked in 3 Practice Areas

Band 3

Dispute Resolution: Class Action (Defence)

Nationwide - Canada

5 Years Ranked

Band 4

Litigation: General Commercial

Ontario

3 Years Ranked

Band 4

Privacy & Data Protection

Nationwide - Canada

2 Years Ranked

About

Provided by Catherine Beagan Flood

Canada

Practice Areas

Cathy is the co-Practice Group Leader of the Toronto Litigation group and also leads Blakes National Cybersecurity Working Group. Cathy has appeared before the Supreme Court of Canada in 18 appeals. Her national litigation practice has involved arguing before the trial courts of every province, in addition to appellate courts across Canada and a wide range of administrative and arbitration tribunals. She litigates complex commercial and regulatory cases and defends class actions with a regulatory component. In particular, she is currently defending clients in multiple privacy, antitrust, product liability and consumer protection class actions. Cathy has also represented the House of Commons before Commissions of Inquiry and has been counsel to and given evidence to provincial and federal legislative committees.

Career

Cathy clerked for the Honourable Antonio Lamer, Chief Justice of Canada from 1997 to 1998. She taught information and privacy law at Osgoode Hall Law School from 2000 to 2008.

Personal

Cathy obtained an LLM from Harvard Law School, an LLB from Osgoode Hall Law School and a BA from the University of Prince Edward Island.

Chambers Review

Provided by Chambers

Canada

Dispute Resolution: Class Action (Defence) - Nationwide - Canada

Band 3

Individual Editorial

Catherine Beagan Flood is well regarded for her representation in product liability and privacy-related class actions. She also has experience in high-stakes antitrust class proceedings.

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Litigation: General Commercial - Ontario

Band 4

Individual Editorial

Catherine Beagan Flood is an experienced litigator who frequently assists clients with a broad range of complex commercial disputes. She is based in Blake, Cassels & Graydon's Toronto office and is noted in particular for her ability to handle contentious matters in the telecommunications and energy sectors.

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Privacy & Data Protection - Nationwide - Canada

Band 4

Individual Editorial

Catherine Beagan Flood is experienced in handling privacy breach class actions and demonstrates additional knowledge assisting clients with responses to ransomware attacks.

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Strengths

Provided by Chambers

Catherine is exceptional as an advocate - she's a legal strategist and appellate lawyer with great skills.

Dispute Resolution: Class Action (Defence) respondent
Canada

She's a spectacular lawyer who has such an incredible level of expert knowledge.

Dispute Resolution: Class Action (Defence) respondent
Canada

Cathy is our go-to litigator for complex files.

Litigation: General Commercial respondent
Canada

Cathy consistently provides timely and well-thought-out advice to our business. She is a valuable asset and great partner for us. She consistently overdelivers in terms of service and sophistication.

Litigation: General Commercial respondent
Canada

Catherine's written work is brilliant. She is a very impressive advocate who delivers persuasive and creative arguments. She sees through the pile of mud to extract the diamond.

Litigation: General Commercial respondent
Canada

Catherine is very knowledgeable and we have great confidence in working with her.

Privacy & Data Protection respondent
Canada

Catherine Beagan Flood is very client-centric and provides advice across all levels of the organisation, giving an appropriate level of detail and thoroughness.

Privacy & Data Protection respondent
Canada

Catherine is exceptional as an advocate - she's a legal strategist and appellate lawyer with great skills.

Dispute Resolution: Class Action (Defence) respondent
Canada

She's a spectacular lawyer who has such an incredible level of expert knowledge.

Dispute Resolution: Class Action (Defence) respondent
Canada

Cathy is our go-to litigator for complex files.

Litigation: General Commercial respondent
Canada

Cathy consistently provides timely and well-thought-out advice to our business. She is a valuable asset and great partner for us. She consistently overdelivers in terms of service and sophistication.

Litigation: General Commercial respondent
Canada

Catherine's written work is brilliant. She is a very impressive advocate who delivers persuasive and creative arguments. She sees through the pile of mud to extract the diamond.

Litigation: General Commercial respondent
Canada

Catherine is very knowledgeable and we have great confidence in working with her.

Privacy & Data Protection respondent
Canada

Catherine Beagan Flood is very client-centric and provides advice across all levels of the organisation, giving an appropriate level of detail and thoroughness.

Privacy & Data Protection respondent
Canada

Filter by

Alberta

Corporate/Commercial

Chad C Schneider

Band 1

Catherine Beagan Flood

Canada Guide 2025

Dispute Resolution: Class Action (Defence) + 2 more rankings

About

Practice Areas

Career

Personal

Chambers Review

Canada

Dispute Resolution: Class Action (Defence) - Nationwide - Canada

Individual Editorial

Litigation: General Commercial - Ontario

Individual Editorial

Privacy & Data Protection - Nationwide - Canada

Individual Editorial

Strengths

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Alberta

British Columbia

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