Lucas E. Lung
Partner
Lucas has a broad commercial litigation practice, with a deep understanding of the mechanics of how businesses operate. He is known for his adaptability across courts, tribunals, and alternative dispute resolution.
Areas of Expertise
Business And Contractual Disputes
Shareholder Disputes
Defamation
Professional Negligence And Discipline
Administrative And Public Law
Securities Investment Dealer, Financial Advisor Negligence, And Discipline
Employment Disputes
Bankruptcy, Insolvency And Creditor Remedies
Constitutional And Charter Challenges And Remedies
Education
Admitted to the Ontario Bar (2006)
Juris Doctor, University of Toronto, Faculty of Law (2005)
Bachelor of Arts (First Class Honours), Simon Fraser University (2002)
Education
Admitted to the Ontario Bar (2006)
Juris Doctor, University of Toronto, Faculty of Law (2005)
Bachelor of Arts (First Class Honours), Simon Fraser University (2002)
Education
Admitted to the Ontario Bar (2006)
Juris Doctor, University of Toronto, Faculty of Law (2005)
Bachelor of Arts (First Class Honours), Simon Fraser University (2002)
Awards and Recognition
Selected by peers for inclusion in Best Lawyers in Canada for Administrative and Public Law, Appellate Practice, and Corporate and Commercial Litigation
Selected by peers for inclusion in Canadian Legal Lexpert Directory for Litigation – Corporate Commercial (2021-2022, 2025); Professional Liability (2023, 2025);
Litigator to Watch – 2012 Lexpert Guide to the Leading US/Canada Cross-Border Litigation Lawyers in Canada
Lexpert Rising Stars, Leading Lawyers Under 40 (2011)
Arleen Goss Young Advocates’ Award (2011)
Awards and Recognition
Selected by peers for inclusion in Best Lawyers in Canada for Administrative and Public Law, Appellate Practice, and Corporate and Commercial Litigation
Selected by peers for inclusion in Canadian Legal Lexpert Directory for Litigation – Corporate Commercial (2021-2022, 2025); Professional Liability (2023, 2025);
Litigator to Watch – 2012 Lexpert Guide to the Leading US/Canada Cross-Border Litigation Lawyers in Canada
Lexpert Rising Stars, Leading Lawyers Under 40 (2011)
Arleen Goss Young Advocates’ Award (2011)
Awards and Recognition
Selected by peers for inclusion in Best Lawyers in Canada for Administrative and Public Law, Appellate Practice, and Corporate and Commercial Litigation
Selected by peers for inclusion in Canadian Legal Lexpert Directory for Litigation – Corporate Commercial (2021-2022, 2025); Professional Liability (2023, 2025);
Litigator to Watch – 2012 Lexpert Guide to the Leading US/Canada Cross-Border Litigation Lawyers in Canada
Lexpert Rising Stars, Leading Lawyers Under 40 (2011)
Arleen Goss Young Advocates’ Award (2011)
Selected Presentations/Publications
Co-Chair and Speaker, Tips from the Bench for Litigators, Law Society of Ontario (May 14, 2019)
Chair, Professionalism and Practice Management Issues in Administrative Law, Law Society of Upper Canada (September 29, 2016)
Chair and Speaker, Professionalism and Practice Management Issues for Administrative Lawyers, Law Society of Upper Canada (October 1, 2015)
Panelist, “Paving the Way: Top 10 Networking Tips”, 9th Annual Federation of Asian Canadian Lawyers Conference (September 26, 2015)
Panelist, Litigation Panel, 10th Annual Asian Canadian Law Students’ Conference (February 22, 2014)
Presenter, “Recent Developments in Procedural Fairness: Bias and Independence”, Top Cases in Regulatory and Administrative Law (The Advocates’ Society: January 21, 2014)
Panelist, A Day in the Life: Asian Canadian Litigators, 7th Annual Federation of Asian Canadian Lawyers Conference (November 16, 2013)
Panelist, Recent Developments in Procedural Fairness, Osgoode Professional Development’s 9th Annual National Forum, Administrative Law and Practice (October 23, 2013)
Co-author, “Cut to the Case: The American Litigator’s Quick Guide to Dispute Resolution in Canada” (Lexpert/American Lawyer Guide to the Leading 500 Lawyers in Canada, 2013)
Panelist, Caveat Emptor: Duties of full disclosure, from Facebook shares, to false advertising, and other “buyer beware” tales (Federation of Asian Canadian Lawyers Fall Conference 2012) (November 10, 2012)
Panelist, Dealing with Costs: When Are They Available and Best Practices for Written Materials (Thunder Bay Fall CLE 2012) (October 26, 2012)
Panelist, Special Issues for the Pro Bono Lawyer, (Pro Bono Law Ontario) (November 3, 2011)
Panelist, Keeping Your Board Motivated, Ontario Non-Profit Housing Association Annual Conference, 2011 (October 29, 2011)
Guest Speaker: “Update on Procedural Fairness”, The 7th Annual National Forum Administrative Law & Practice, Osgoode Hall Law School (October 17, 2011)
Guest Speaker: Search Warrants, Chartered Accountants Professional Development Consortium (September 13, 2011)
“Enforcement of Family Class Sponsorship Debts” with Amanda Dodge, Ontario Bar Association, Citizenship and Immigration Newsletter (Vol. 1, No. 1: April 2009)
“Payment Card Class Actions in Canada: An Overview” with F.P. Morrison and J. Koziebrocki, 3rd National Symposium on Class Actions: Class Actions without Borders (Toronto: Osgoode Hall Law School, April 2006)
Selected Presentations/Publications
Co-Chair and Speaker, Tips from the Bench for Litigators, Law Society of Ontario (May 14, 2019)
Chair, Professionalism and Practice Management Issues in Administrative Law, Law Society of Upper Canada (September 29, 2016)
Chair and Speaker, Professionalism and Practice Management Issues for Administrative Lawyers, Law Society of Upper Canada (October 1, 2015)
Panelist, “Paving the Way: Top 10 Networking Tips”, 9th Annual Federation of Asian Canadian Lawyers Conference (September 26, 2015)
Panelist, Litigation Panel, 10th Annual Asian Canadian Law Students’ Conference (February 22, 2014)
Presenter, “Recent Developments in Procedural Fairness: Bias and Independence”, Top Cases in Regulatory and Administrative Law (The Advocates’ Society: January 21, 2014)
Panelist, A Day in the Life: Asian Canadian Litigators, 7th Annual Federation of Asian Canadian Lawyers Conference (November 16, 2013)
Panelist, Recent Developments in Procedural Fairness, Osgoode Professional Development’s 9th Annual National Forum, Administrative Law and Practice (October 23, 2013)
Co-author, “Cut to the Case: The American Litigator’s Quick Guide to Dispute Resolution in Canada” (Lexpert/American Lawyer Guide to the Leading 500 Lawyers in Canada, 2013)
Panelist, Caveat Emptor: Duties of full disclosure, from Facebook shares, to false advertising, and other “buyer beware” tales (Federation of Asian Canadian Lawyers Fall Conference 2012) (November 10, 2012)
Panelist, Dealing with Costs: When Are They Available and Best Practices for Written Materials (Thunder Bay Fall CLE 2012) (October 26, 2012)
Panelist, Special Issues for the Pro Bono Lawyer, (Pro Bono Law Ontario) (November 3, 2011)
Panelist, Keeping Your Board Motivated, Ontario Non-Profit Housing Association Annual Conference, 2011 (October 29, 2011)
Guest Speaker: “Update on Procedural Fairness”, The 7th Annual National Forum Administrative Law & Practice, Osgoode Hall Law School (October 17, 2011)
Guest Speaker: Search Warrants, Chartered Accountants Professional Development Consortium (September 13, 2011)
“Enforcement of Family Class Sponsorship Debts” with Amanda Dodge, Ontario Bar Association, Citizenship and Immigration Newsletter (Vol. 1, No. 1: April 2009)
“Payment Card Class Actions in Canada: An Overview” with F.P. Morrison and J. Koziebrocki, 3rd National Symposium on Class Actions: Class Actions without Borders (Toronto: Osgoode Hall Law School, April 2006)
Selected Presentations/Publications
Co-Chair and Speaker, Tips from the Bench for Litigators, Law Society of Ontario (May 14, 2019)
Chair, Professionalism and Practice Management Issues in Administrative Law, Law Society of Upper Canada (September 29, 2016)
Chair and Speaker, Professionalism and Practice Management Issues for Administrative Lawyers, Law Society of Upper Canada (October 1, 2015)
Panelist, “Paving the Way: Top 10 Networking Tips”, 9th Annual Federation of Asian Canadian Lawyers Conference (September 26, 2015)
Panelist, Litigation Panel, 10th Annual Asian Canadian Law Students’ Conference (February 22, 2014)
Presenter, “Recent Developments in Procedural Fairness: Bias and Independence”, Top Cases in Regulatory and Administrative Law (The Advocates’ Society: January 21, 2014)
Panelist, A Day in the Life: Asian Canadian Litigators, 7th Annual Federation of Asian Canadian Lawyers Conference (November 16, 2013)
Panelist, Recent Developments in Procedural Fairness, Osgoode Professional Development’s 9th Annual National Forum, Administrative Law and Practice (October 23, 2013)
Co-author, “Cut to the Case: The American Litigator’s Quick Guide to Dispute Resolution in Canada” (Lexpert/American Lawyer Guide to the Leading 500 Lawyers in Canada, 2013)
Panelist, Caveat Emptor: Duties of full disclosure, from Facebook shares, to false advertising, and other “buyer beware” tales (Federation of Asian Canadian Lawyers Fall Conference 2012) (November 10, 2012)
Panelist, Dealing with Costs: When Are They Available and Best Practices for Written Materials (Thunder Bay Fall CLE 2012) (October 26, 2012)
Panelist, Special Issues for the Pro Bono Lawyer, (Pro Bono Law Ontario) (November 3, 2011)
Panelist, Keeping Your Board Motivated, Ontario Non-Profit Housing Association Annual Conference, 2011 (October 29, 2011)
Guest Speaker: “Update on Procedural Fairness”, The 7th Annual National Forum Administrative Law & Practice, Osgoode Hall Law School (October 17, 2011)
Guest Speaker: Search Warrants, Chartered Accountants Professional Development Consortium (September 13, 2011)
“Enforcement of Family Class Sponsorship Debts” with Amanda Dodge, Ontario Bar Association, Citizenship and Immigration Newsletter (Vol. 1, No. 1: April 2009)
“Payment Card Class Actions in Canada: An Overview” with F.P. Morrison and J. Koziebrocki, 3rd National Symposium on Class Actions: Class Actions without Borders (Toronto: Osgoode Hall Law School, April 2006)
Representative Matters
Acting for a short seller who was one of a number of defendants sued by a private equity fund for defamation arising from an article in the Wall Street Journal. The action was dismissed as a strategic lawsuit against public participation (SLAPP).
Acting for an applicant in proceedings to enforce judgments of a United States court in Ontario relating to a property in Ontario, including the appointment of a receiver to take possession of and to sell the property.
Acting for a shareholder in a closely-held company in which the value of her equity interest was diluted as a result of the actions of the controlling shareholder. The court determined that the controlling shareholder’s actions were oppressive and set aside the impugned transactions.
Acting in a confidential arbitration involving a dispute between three shareholders of a family-owned company in which one shareholder alleged that the other two shareholders were acting in an oppressive manner. The arbitrator found in favour of Lerners’ clients.
Acting for the manager of a closed-end investment trust that was sued by a unitholder for entering into a transaction that had the effect of diluting the net asset value per unit of certain unitholders. The action was dismissed by the trial judge.
Acting for a large group of plaintiffs in an action in Ontario for the recognition and enforcement of a judgment of the United States District Court against the Islamic Republic of Iran and the Islamic Revolutionary Guard Corps for providing material support to a group that was responsible for a terrorist attack on the living quarters of members of the US armed forces in Saudi Arabia in 1996. The plaintiffs are victims or family members of victims of that attack.
Acting for an individual in a statutory appeal of a decision of the Registrar under the Indian Act to deny her status under the Indian Act on the basis that her grandfather withdrew from treaty and took scrip in the 1880s.
Acting for a credit union in a statutory appeal of a decision by the provincial regulator to appoint an administrator to manage the operations and affairs of the credit union.
Regularly acting for domestic and foreign companies in contract and commercial leasing disputes.
Regularly acting for a variety of professionals and their firms in actions alleging professional negligence.
Regularly acting for accounting and law firms in responding to summonses for information and documentation from the Ontario Securities Commission pursuant to s. 13 of the Securities Act.
Representative Matters
Acting for a short seller who was one of a number of defendants sued by a private equity fund for defamation arising from an article in the Wall Street Journal. The action was dismissed as a strategic lawsuit against public participation (SLAPP).
Acting for an applicant in proceedings to enforce judgments of a United States court in Ontario relating to a property in Ontario, including the appointment of a receiver to take possession of and to sell the property.
Acting for a shareholder in a closely-held company in which the value of her equity interest was diluted as a result of the actions of the controlling shareholder. The court determined that the controlling shareholder’s actions were oppressive and set aside the impugned transactions.
Acting in a confidential arbitration involving a dispute between three shareholders of a family-owned company in which one shareholder alleged that the other two shareholders were acting in an oppressive manner. The arbitrator found in favour of Lerners’ clients.
Acting for the manager of a closed-end investment trust that was sued by a unitholder for entering into a transaction that had the effect of diluting the net asset value per unit of certain unitholders. The action was dismissed by the trial judge.
Acting for a large group of plaintiffs in an action in Ontario for the recognition and enforcement of a judgment of the United States District Court against the Islamic Republic of Iran and the Islamic Revolutionary Guard Corps for providing material support to a group that was responsible for a terrorist attack on the living quarters of members of the US armed forces in Saudi Arabia in 1996. The plaintiffs are victims or family members of victims of that attack.
Acting for an individual in a statutory appeal of a decision of the Registrar under the Indian Act to deny her status under the Indian Act on the basis that her grandfather withdrew from treaty and took scrip in the 1880s.
Acting for a credit union in a statutory appeal of a decision by the provincial regulator to appoint an administrator to manage the operations and affairs of the credit union.
Regularly acting for domestic and foreign companies in contract and commercial leasing disputes.
Regularly acting for a variety of professionals and their firms in actions alleging professional negligence.
Regularly acting for accounting and law firms in responding to summonses for information and documentation from the Ontario Securities Commission pursuant to s. 13 of the Securities Act.
Representative Matters
Acting for a short seller who was one of a number of defendants sued by a private equity fund for defamation arising from an article in the Wall Street Journal. The action was dismissed as a strategic lawsuit against public participation (SLAPP).
Acting for an applicant in proceedings to enforce judgments of a United States court in Ontario relating to a property in Ontario, including the appointment of a receiver to take possession of and to sell the property.
Acting for a shareholder in a closely-held company in which the value of her equity interest was diluted as a result of the actions of the controlling shareholder. The court determined that the controlling shareholder’s actions were oppressive and set aside the impugned transactions.
Acting in a confidential arbitration involving a dispute between three shareholders of a family-owned company in which one shareholder alleged that the other two shareholders were acting in an oppressive manner. The arbitrator found in favour of Lerners’ clients.
Acting for the manager of a closed-end investment trust that was sued by a unitholder for entering into a transaction that had the effect of diluting the net asset value per unit of certain unitholders. The action was dismissed by the trial judge.
Acting for a large group of plaintiffs in an action in Ontario for the recognition and enforcement of a judgment of the United States District Court against the Islamic Republic of Iran and the Islamic Revolutionary Guard Corps for providing material support to a group that was responsible for a terrorist attack on the living quarters of members of the US armed forces in Saudi Arabia in 1996. The plaintiffs are victims or family members of victims of that attack.
Acting for an individual in a statutory appeal of a decision of the Registrar under the Indian Act to deny her status under the Indian Act on the basis that her grandfather withdrew from treaty and took scrip in the 1880s.
Acting for a credit union in a statutory appeal of a decision by the provincial regulator to appoint an administrator to manage the operations and affairs of the credit union.
Regularly acting for domestic and foreign companies in contract and commercial leasing disputes.
Regularly acting for a variety of professionals and their firms in actions alleging professional negligence.
Regularly acting for accounting and law firms in responding to summonses for information and documentation from the Ontario Securities Commission pursuant to s. 13 of the Securities Act.
Memberships
Ontario Bar Association
The Advocates’ Society
Federation of Asian Canadian Lawyers
National Asian Pacific American Bar Association
Memberships
Ontario Bar Association
The Advocates’ Society
Federation of Asian Canadian Lawyers
National Asian Pacific American Bar Association
Memberships
Ontario Bar Association
The Advocates’ Society
Federation of Asian Canadian Lawyers
National Asian Pacific American Bar Association
Understanding Business Priorities
Lucas Lung is a partner in Lerners’ Toronto office and a member of the Dispute Resolution and Advocacy, Professional Regulation, Appeals, Defence Class Actions and Plaintiff Class Actions practice groups.
Lucas regularly acts on matters involving businesses of all sizes in a wide range of sectors. This broad focus and his many years in practice have given him a deep understanding of the mechanics of how businesses operate.
With a broad commercial litigation practice, Lucas offers expertise in a variety of areas, including contract, shareholder, and other
“The practice of litigation today is far more than courtroom advocacy,” explains Lucas. “Our clients are involved in proceedings before a variety of administrative tribunals and private alternative dispute resolution processes. To represent them effectively, we must be flexible
Lucas regularly speaks at conferences before legal and non-legal audiences on a variety of topics including civil litigation, professional regulation and diversity in the legal profession. Lucas mentors the firm’s articling students and associate lawyers.
He also sits on the board of directors of Community Legal Education Ontario, an organization providing legal information to people who face barriers accessing the justice system.
Lucas Lung is a partner in Lerners’ Toronto office and a member of the Dispute Resolution and Advocacy, Professional Regulation, Appeals, Defence Class Actions and Plaintiff Class Actions practice groups.
Lucas regularly acts on matters involving businesses of all sizes in a wide range of sectors. This broad focus and his many years in practice have given him a deep understanding of the mechanics of how businesses operate.
With a broad commercial litigation practice, Lucas offers expertise in a variety of areas, including contract, shareholder, and other commercial disputes. He also acts in matters involving defamation, and allegations of negligence against accountants and other professionals. In the area of public law, Lucas acts in matters before administrative decision-makers and when such decisions are challenged in court.
“The practice of litigation today is far more than courtroom advocacy,” explains Lucas. “Our clients are involved in proceedings before a variety of administrative tribunals and private alternative dispute resolution processes. To represent them effectively, we must be flexible and adaptable to any forum. These are two of our greatest strengths.”
Lucas regularly speaks at conferences before legal and non-legal audiences on a variety of topics including civil litigation, professional regulation and diversity in the legal profession. Lucas mentors the firm’s articling students and associate lawyers.
He also sits on the board of directors of Community Legal Education Ontario, an organization providing legal information to people who face barriers accessing the justice system.
Lucas Lung is a partner in Lerners’ Toronto office and a member of the Dispute Resolution and Advocacy, Professional Regulation, Appeals, Defence Class Actions and Plaintiff Class Actions practice groups.
Lucas regularly acts on matters involving businesses of all sizes in a wide range of sectors. This broad focus and his many years in practice have given him a deep understanding of the mechanics of how businesses operate.
With a broad commercial litigation practice, Lucas offers expertise in a variety of areas, including contract, shareholder, and other commercial disputes. He also acts in matters involving defamation, and allegations of negligence against accountants and other professionals. In the area of public law, Lucas acts in matters before administrative decision-makers and when such decisions are challenged in court.
“The practice of litigation today is far more than courtroom advocacy,” explains Lucas. “Our clients are involved in proceedings before a variety of administrative tribunals and private alternative dispute resolution processes. To represent them effectively, we must be flexible and adaptable to any forum. These are two of our greatest strengths.”
Lucas regularly speaks at conferences before legal and non-legal audiences on a variety of topics including civil litigation, professional regulation and diversity in the legal profession. Lucas mentors the firm’s articling students and associate lawyers.
He also sits on the board of directors of Community Legal Education Ontario, an organization providing legal information to people who face barriers accessing the justice system.
Latest Insights
Latest Insights
Latest Insights
Reach Out
Everyone at Lerners is committed to ensuring your matters are addressed with the attention and care you expect.
Reach Out
Everyone at Lerners is committed to ensuring your matters are addressed with the attention and care you expect.
Reach Out
Everyone at Lerners is committed to ensuring your matters are addressed with the attention and care you expect.