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Litigation law, mediation law, and arbitrage law thought leadership, articles, podcasts, videos and webinars from expert sources across the legal world. Explore insights covering civil law, class actions, dispute resolution, libel and defamation and more in relation to litigation, mediation and arbitration.

Tax Court Of Canada Clarifies Role Of Parties' Intentions In Worker Classification

In Insurance Institute of Ontario v. M.N.R., 2020 TCC 69, the Tax Court of Canada clarified that where a payor and a worker share a common intention regarding the nature of their relationship, that intention may prevail —

RS

Rotfleisch & Samulovitch P.C.

Appeals To The Supreme Court Of Canada: 2025 Year In Review

A few weeks ago, we shared an overview of trends in the Supreme Court of Canada's leave decisions in 2025. In this post, we follow that up with...

Canada Litigation

LS

Lenczner Slaght LLP

Developments In Class Action Law: Highlights From Q4 2025

The final quarter of 2025 marked significant developments in Canadian class action law, with courts refining the boundaries of certification and leave across securities, consumer protection and privacy class actions.

Canada Litigation

AB

Aird & Berlis LLP

The Power Of Mentorship At Lerners: Celebrating National Mentoring Month

This National Mentoring Month, we're proud to shine a light on the articling students who show up every day with curiosity, courage, and an authentic commitment to learning...

Canada Litigation

LL

Lerners LLP

Recent Saskatchewan Court Of King's Bench Decision Reaffirms The Broad Application Of The One-year Limitation Period For Suing Municipalities In Saskatchewan

Canada Litigation

CC

CLC (Canadian Litigation Counsel)

The SCC Leave Project: Predictions For January 29, 2026

Canada Litigation

LS

Lenczner Slaght LLP

Proposed Changes To The Rules For Expert Witnesses: Cooperation, Conferencing, & Consequences

Canada Litigation

LS

Lenczner Slaght LLP

Ontario Court Grants Anti-suit Injunction To Enjoin Foreign Arbitration In Ongoing Crypto Litigation

Canada Litigation

OH

Osler, Hoskin & Harcourt LLP

Life Sciences In Canada: Year In Review 2025

GW

Gowling WLG

Open-court Principle Takes Back Seat To Serious Risk Of Defendant's Reputational Loss (S.L.K. v. A.B.)

Canada Litigation

GR

Gardiner Roberts LLP

Alberta Court Of Appeal Recalibrates Cost Awards In Professional Disciplinary Proceedings

Canada Litigation

MA

MLT Aikins LLP

Freedom Convoy: Federal Court Of Appeal Upholds Finding Of No Emergency

Canada Litigation

LS

Lenczner Slaght LLP

Que faut-il pour exprimer une intention testamentaire ferme et définitive? Leçons tirées de l'affaire Paige v Noel, 2025 BCCA 358 (« Paige »)

MT

Miller Thomson LLP

BC Supreme Court Dismisses Dormant Lien Action — Security Released After Five Years

Canada Real Estate

CW

Clark Wilson LLP

Regulatory Incentives For Ontario Distributors To Encourage DER Integration Through Non-wires Solutions

TL

Torys LLP

Dispute Resolution Clauses Matter More Than You Think: Avoiding Costly Mistakes In Commercial Contracts

Canada Commercial

MT

Miller Thomson LLP

When Is Enough, Enough? HRTO's Guidance On Accommodation In Cillis v. Hamilton - Wentworth District School Board.

Canada Employment

PH

Piccolo Heath

Expropriation Law: Important Notice For Homeowners

Canada Real Estate

M

McQuarrie

Sneaky Trusts: The Legal Plot Twist With Gratuitous Property Transfers

Canada Real Estate

AH

Alexander Holburn Beaudin + Lang LLP

What Businesses Need To Know About Expanding Minister Of National Revenue Powers During Reassessments Under Income Tax Act, Subsection 152(9) – Perspective From Canadian Tax Lawyer

Canadian tax law evolves constantly, with Tax Court of Canada rulings playing a pivotal role in clarifying the Minister of National Revenue's authority over reassessments.

RS

Rotfleisch & Samulovitch P.C.

Lawyer Ordered To Pay Personal Costs For Using Fake AI-generated Case Law (Reddy v Saroya)

In an avoidable yet perhaps inevitable decision, a Canadian court has imposed personal costs against a lawyer for using AI-generated submissions in materials filed with the court: Reddy v Saroya, 2026 ABCA 20 (CanLII).

Canada Technology

GR

Gardiner Roberts LLP

Court Of Appeal Summaries (January 19 – 23, 2026)

Torts, Defamation, Civil Procedure, Anti-SLAPP, Damages, Costs, Self-Represented Litigants, Full Indemnity, Courts of Justice Act, R.S.O. 1990, c.C.43, s. 136.1, Human Rights...

Canada Litigation

BM

Blaney McMurtry LLP

Good Faith In M&A Deals At The Supreme Court Of Delaware: A Canadian Perspective

The January 12, 2026 decision of the Supreme Court of Delaware in Johnson & Johnson v. Fortis Advisors LLC, File No. 490, 2024 offers Canadian lawyers a fascinating window into how contractual duties of good faith...

Canada Commercial

MT

McCarthy Tétrault LLP

Spoliation de la preuve : La Cour suprême du Canada s'apprête à fournir des indications

Canada Litigation

BC

Blake, Cassels & Graydon LLP

Understanding How Statutory Deductibles And Thresholds Impact Your Vehicle Accident Claim

Canada Insurance

GP

Gluckstein Lawyers

A New Era For Civil Litigation In Ontario: Highlights From The Civil Rules Review Final Report

Canada Litigation

BL

Borden Ladner Gervais LLP

Can An Entire Agreement Clause Bar Reliance On The Surrounding Circumstances? ONCA Says "No".

Canada Strategy

TL

Torys LLP

Ontario's Approach To Enforcing Foreign Judgments In The Face Of Arbitration Clauses

Canada Litigation

MT

McCarthy Tétrault LLP

Federal Courts Publish The 2024-2025 Global Review Of The Federal Courts Rules

C

Cassels

U.S. Supreme Court May Rule U.S. Tariffs On Some Canadian Goods Illegal

Canada International

MA

MLT Aikins LLP

Federal Court Of Appeal Reaffirms That Tax Efficiency Alone Does Not Equate To Abuse Under GAAR: Canada v. Quebecor Inc., 2025 FCA 207

RS

Rotfleisch & Samulovitch P.C.

Details Matter: Court Of Appeal Of Alberta Upholds Decision That Royalty Was Not An Interest In Land In Invico Diversified Income Limited Partnership v. Newgrange Energy Inc.

Canada Insolvency

TL

Torys LLP

Health Professionals Must Report Criminal Charges: A Regulatory Risk That Cannot Be Ignored

Canada Criminal

RS

Rosen Sunshine LLP

What Businesses Need To Know About Expanding Minister Of National Revenue Powers During Reassessments Under Income Tax Act, Subsection 152(9) – Perspective From Canadian Tax Lawyer

Canadian tax law evolves constantly, with Tax Court of Canada rulings playing a pivotal role in clarifying the Minister of National Revenue's authority over reassessments.

RS

Rotfleisch & Samulovitch P.C.

Federal Court Of Appeal Reaffirms That Tax Efficiency Alone Does Not Equate To Abuse Under GAAR: Canada v. Quebecor Inc., 2025 FCA 207

In Canada v. Quebecor Inc., the Federal Court of Appeal affirmed the Tax Court of Canada's decision that a complex series of intra-group transactions undertaken by Quebecor Inc. did not constitute abusive tax avoidance under GAAR in section 245 of the Income Tax Act.

RS

Rotfleisch & Samulovitch P.C.

Details Matter: Court Of Appeal Of Alberta Upholds Decision That Royalty Was Not An Interest In Land In Invico Diversified Income Limited Partnership v. Newgrange Energy Inc.

Structuring royalties as interests in land can provide significant protection in subsequent insolvency proceedings, but a recent decision from the Court of Appeal of Alberta underscores...

Canada Insolvency

TL

Torys LLP

Health Professionals Must Report Criminal Charges: A Regulatory Risk That Cannot Be Ignored

Health professionals must promptly disclose to their Colleges any criminal charges that have been made against them.

Canada Criminal

RS

Rosen Sunshine LLP

UR Pride Case: Saskatchewan Court Of Appeal Weighs In On Pre-emptive Use Of The Notwithstanding Clause

Canada Government

L,

Langlois Lawyers, LLP

When Is An Accountant's Work Privileged In Canada: Protecting Accountants' Work In Tax Matters, Including Litigation

The British Columbia Supreme Court decision in Lewis v. WestJet Airlines Ltd. (2025 BCSC 1565) clarifies the circumstances under which accountants' work may be protected by legal privilege.

RS

Rotfleisch & Samulovitch P.C.

Court Of Appeal Summaries (January 12 – 16, 2026)

Good afternoon. Following are our summaries of the civil decisions of the Court of Appeal for Ontario from January 12, 2026 to January 16, 2026.

Canada Litigation

BM

Blaney McMurtry LLP

Canadian Patent Law 2025: A Year In Review

2025 saw a significant statutory change and the long-awaited Supreme Court of Canada hearing of an appeal regarding the patentability of methods of medical treatment.

SB

Smart & Biggar

Federal Court Of Appeal Confirms "New Owner Jurisprudence" In Section 45 Proceedings

Businesses acquiring Canadian trademarks that may have fallen into disuse should take note: in Comité interprofessionnel du vin de champagne v. Coors Brewing Company...

OW

Oyen Wiggs Green & Mutala LLP

Royalties Are Not Always King: Alberta Court Of Appeal Upholds Decision To Vest Off Gross Overriding Royalty

Canada Insolvency

F

Fasken

Canadian Tax Litigation Insights: How The Jennings-Clyde (Vivatas, Inc.) Decision Protects Canadian Taxpayers' Rights In Federal Court Of Appeal

RS

Rotfleisch & Samulovitch P.C.

Setting The Precedent: 2025's Legal Landmarks And The Path Ahead

Canada Litigation

DW

Davies Ward Phillips & Vineberg

Top 5 Need-to-Know Canadian GST/HST Cases From 2025

MT

McCarthy Tétrault LLP

Private Practice, Public Operating Rooms, And Hospital Privileges: The Ontario Court Of Appeal Clarifies Section 44 Of The Public Hospitals Act

Canada Healthcare

LS

Lenczner Slaght LLP

Jennings-Clyde v. Canada (Attorney General), 2025 FCA 225 – When The CRA Denies Taxpayer Relief, It Must Explain Clear Reasons Why

RS

Rotfleisch & Samulovitch P.C.

The Competition Tribunal's First Word On The New "Public Interest" Leave Test

Canada Anti-trust

LS

Lenczner Slaght LLP

Forseed Haro Holdings Ltd. v. Bank Of Montreal: BCSC Provides Clarity On Security Interest In Cash Collateral Invested In GICs

Canada Real Estate

MT

McCarthy Tétrault LLP

Ontario's Top Court Finds School Board Not Liable In Bullying Claim

Canada Litigation

BL

Borden Ladner Gervais LLP

Service Of Process: More Than A Formality

Canada Litigation

C

Cassels

When Is An Accountant's Work Privileged In Canada: Protecting Accountants' Work In Tax Matters, Including Litigation

RS

Rotfleisch & Samulovitch P.C.

Blake v. Ahmed (2025 BCCA 384) – The Court Of Appeal Reaffirms Limits On Taxpayer Claims And Pseudo-Legal Arguments

RS

Rotfleisch & Samulovitch P.C.

Disclosing The Definition Of A "Material Change": Lundin Mining Corporation v. Markowich, 2025 SCC 39

Canada Commercial

MT

Miller Titerle + Company

Ontario Court Of Appeal Upholds Enforcement Of German Judgment Despite Arbitration Clause

Canada Litigation

AG

Affleck Greene McMurtry LLP

ONCA Affirms Denial Of Claim For Earn-Out Acceleration

Canada Litigation

BJ

Bennett Jones LLP

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Highlighted Content

What Businesses Need To Know About Expanding Minister Of National Revenue Powers During Reassessments Under Income Tax Act, Subsection 152(9) – Perspective From Canadian Tax Lawyer

RS

Rotfleisch & Samulovitch P.C.

When Is An Accountant's Work Privileged In Canada: Protecting Accountants' Work In Tax Matters, Including Litigation

RS

Rotfleisch & Samulovitch P.C.

Blake v. Ahmed (2025 BCCA 384) – The Court Of Appeal Reaffirms Limits On Taxpayer Claims And Pseudo-Legal Arguments

RS

Rotfleisch & Samulovitch P.C.

How Are Professional Poker Winnings Taxed In Canada? Taxable Business Income And Non-Taxable Hobbies: Fournier-Giguère V. Canada Et. Al., 2025 FCA 112

RS

Rotfleisch & Samulovitch P.C.

When The CRA Says, "No": Exploring Judicial Review For Denied Taxpayer Relief From Penalties, Interest Payments On Tax Debt

RS

Rotfleisch & Samulovitch P.C.

Tax Evasion Penalties: Canadian Tax Evasion Versus U.S. Tax Evasion, A Canadian Tax Lawyer Explains The Differences

RS

Rotfleisch & Samulovitch P.C.

Are "Hybrid Sales" Of Private Businesses Still A Viable Tax Planning Tool For Business Owners? A Case Comment On Foix V His Majesty The King, 2023 FCA 38

RS

Rotfleisch & Samulovitch P.C.

Year In Review: 7 Things You Need To Know About Canadian Immigration Law In 2023

Canada Immigration

Gs

Green and Spiegel

Strikes And Picketing In The Living Room: Anti-scab Provisions In The Age Of Telework

Canada Employment

SE

Stikeman Elliott LLP

Ontario Superior Court Reviews The Factors Applied In Determining Independent / Dependant Contractor Status

Canada Employment

SE

Stikeman Elliott LLP

Latest Videos

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Appealing Briefs – Episode 24: Kosicki: Adverse Possession, Statutory Interpretation, And The Common Law (Podcast)

MT

McCarthy Tétrault LLP

Consent To Judgment In Ontario Debt Matters Explained (Video)

DS

Devry Smith Frank LLP

Understanding Estate Litigation In BC: How Proper Preparation Can Prevent Legal Battles (Video)

FH

FH&P Lawyers

Class Actions In Canada: Hot Topics Shaping Tech Litigation (Video)

F

Fasken

Les actions collectives au Canada : les sujets d'actualité qui façonnent les litiges dans le secteur des technologies (Video)

FF

Fasken (French)

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