Lexpert Ranked Law Firm

Langlois lawyers, LLP is a full-service firm at the cutting edge of the law, focused on what is truly essential: legal services of the highest quality, passion for the profession, and superlative client service. It is one of the largest law firms in Québec, with over 150 professionals working in Montréal and Québec City. Our team offers a complete range of highly regarded legal services in civil and commercial litigation, business and real estate law, employment & labour law, maritime law, administrative law, environmental and energy law, and governance and ethics.



Class Actions: Because class actions are often national or international in scope, we take preemptive action to minimize risk. With extensive experience in complex litigation, our professionals are on the cutting edge of developments in this area. We represent clients in class proceedings involving insurance, financial products, pharmaceuticals, manufacturers and pension plans.

Commercial Litigation: Because corporations today are faced with a larger and stricter set of management standards, Langlois lawyers provides critical guidance for its clients. Dealing with such issues as shareholder disputes, directors’ liability and corporate governance, we have mastered the art of managing large-scale complex litigation files.

Competition Litigation: We represent businesses that operate both locally and globally in the airline, automobile, transportation, retail and e-commerce industries. Our professionals have expertise in lawsuits and class actions involving allegations of anti-competitive behaviour, and keep up to date on investigations and proceedings launched by the Competition Bureau of Canada.

Construction Law: Our construction experts act for plaintiffs and defendants in matters such as design and construction defects, additional work, claims, surety bonds, calls for tenders, BSDQ (depository for bids) and statutory liens. At any given stage of a project, our lawyers are able to offer outstanding guidance to professionals in the construction sector.

Extraordinary Measures: Our team of litigators is often called upon to act in urgent situations and to apply for extraordinary remedies such as injunctions, seizures, Anton Piller and Norwich-type orders, and Mareva injunctions. Our expertise in this field is often sought out by other law firms, for whom we act as independent supervising lawyers, and even by the courts, where we act as amicus curiae.

Insurance Litigation: Our insurance law team is highly regarded in litigation matters involving insurance products and their distribution and registration. Higher solvency requirements in this industry and a more demanding regulatory framework make our strategic legal advice highly sought after. We leverage our industry knowledge to uphold our clients’ interests effectively.

Securities Litigation: Our litigation team represents clients in all matters involving the investment sector. We frequently appear before the Québec Securities Commission (AMP), the Investment Industry Regulatory Organization of Canada (IIROC), the Canadian Association of Mutual Fund Dealers and all levels of the courts, including the Québec Court of Appeal, the Federal Court of Appeal and the Supreme Court of Canada.

Technology Litigation: The lawyers and trademark agents in our technology law group are specialists in the areas of IT governance and regulatory compliance. Our group advises its clientele on e-commerce and the development and implementation of computer systems and applications pursuant to licences or service contracts.

Administrative Law: We provide representation before civil and administrative tribunals and public service boards in matters involving the Canadian and Québec human rights charters, judicial review of administrative action, and legal and constitutional challenges to laws and regulations, injunctions and writs of mandamus.

Business Law: We cover all legal aspects of the activities of small, medium and large businesses in the private, public and para-public sectors, including the organization, dissolution and liquidation of corporations, mergers & acquisitions, banking & finance, public offerings of securities, and international business transactions. The firm has particular expertise in financial restructuring and insolvency related matters.

Employment & Labour Law: Our team of over 30 professionals is the largest employment & labour law group in Québec and is active in all aspects of this area of the law, including employment contracts, collective bargaining, dismissals and disciplinary measures, occupational health & safety, pensions & benefits, and labour disputes.

Maritime Law: We have 80 years’ experience in this field, including ship acquisition, operation and financing, hull and P&I insurance, collision, salvage, general average, and virtually all other aspects of admiralty law. We have also been involved in marine environmental issues and in the energy sector, including the supply and marine transportation of oil and gas.

Public and Private Real Estate Law: Our expertise in this area includes urban planning, construction, environmental law, real estate assessment, municipal taxation and expropriation.

Cannabis Law: We have deep expertise in the core areas of law impacted by the legalization of recreational cannabis. We understand not only the process of legislation, but the commercial, professional and political dynamics at play. We provide services and expertise designed to enhance outcomes for our cannabis clients through a multitude of issues.

Environmental Law: Our team understands and incorporates the environmental legislative and regulatory framework governing corporations, projects, lenders and public bodies in order to protecting the legacy left for future generations.

Energy & Natural Resources Law: Our Energy & Natural Resources group is respected for the depth and breadth of its members’ knowledge of the industry, particularly in connection with renewable energy production and the extraction and transformation of natural resources. Our expertise in this area includes business-related or regulatory matters, and whether it relates to a major energy project, an exploration or production company, a services provider or a government.

Education Law: For many years, our team has provided guidance to managers in this sphere who work in both public and private systems at every level of instruction (school boards, private colleges, CEGEPs and universities). Our professionals are involved in providing legal counsel to our clients as well as representing them before arbitration boards, administrative tribunals, and courts of law.


1250 René-Lévesque Blvd W, Fl 20
Montréal, QC, Canada, H3B 4W8
Phone: (514) 842-9512
Fax: (514) 845-6573

Québec City

2820 Laurier Blvd, Fl 13, Complexe Jules-Dallaire, T3
Québec City, QC, Canada, G1V 0C1
Phone: (418) 650-7000
Fax: (418) 650-7075

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Mentioned in Lexpert Publications

Langlois lawyers, LLP is a Lexpert-Ranked Firm in the following practice areas
Construction Law Montréal, Québec Repeatedly Recommended
Construction Law Québec City, Québec Repeatedly Recommended
Insolvency & Financial Restructuring Québec City, Québec Repeatedly Recommended
Labour Relations Québec City, Québec Repeatedly Recommended
Litigation - Commercial Insurance Montréal, Québec Repeatedly Recommended
Litigation - Commercial Insurance Québec City, Québec Repeatedly Recommended
Litigation - Corporate Commercial Montréal, Québec Repeatedly Recommended
Litigation - Corporate Commercial Québec City, Québec Consistently Recommended
Professional Liability Montréal, Québec Repeatedly Recommended
Professional Liability Québec City, Québec Repeatedly Recommended
Shipping & Maritime Law Québec City, Québec Consistently Recommended
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