André Sasseville

Lawyer, Partner - Montréal

Québec Bar 1979
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André Sasseville has practiced labour and employment law since the beginning of his career. During his many years of practice, he has acted as strategic advisor and spokesperson for a wide variety of employers in negotiating collective agreements and resolving labour disputes. He is an acknowledged expert in crisis management.

He represents clients on a regular basis before specialized labour tribunals and civil law courts, including in class action matters.

André routinely advises businesses on the interpretation of collective agreements and on how to implement changes in human-resources management, including collective layoffs and technological changes. He has extensive experience representing employers before provincial and federal labour relations boards in unionization and union raiding matters, among others.

In cooperation with his network of Quebec, Canadian and North American law practitioners, André is often called upon to advise foreign businesses on transfers, acquisitions and sales of businesses with large numbers of employees. In this regard, he has developed special expertise in the negotiation of facilitating conditions for executives (golden parachutes, bonus plans, etc.) and in designing prevention strategies.

Businesses regularly consult André regarding the negotiation and drafting of employment agreements for their executives, including the development of incentive programs, bonus plans, stock option programs, and supplementary pension plans.

André has appeared on many occasions before all levels of the civil courts, and is thus familiar not only with their official procedures but with their practices and idiosyncrasies. He has taken on many hundreds of cases involving employment practices, pension plans, fiduciary duties and directors’ liability.

André is a certified mediator, and has developed and implemented effective conflict prevention and resolution methods, particularly with respect to interpersonal conflicts and psychological harassment in the workplace. He is a member of a select group of mediators that use “partnering” to resolve conflicts affecting groups of employees. With many years of experience as a lecturer and training instructor, he offers clients made-to-measure business training programs on subjects specific to human resources management, conflict prevention, and labour relations.

In his practice, André advises and represents his clients from a strategic perspective oriented towards resolving disputes and misunderstandings efficiently and advantageously. His extensive experience enables him to act effectively in urgent situations and in cases of critical importance for the organization.

Representative Work

Université McGill
Successfully represented McGill University in the Amoriggi v. McGill University et al., 2017 QCCS 5621, conf. by 2019 QCCA 960, which was concerned with the right of an employer to dismiss an employee whose performance has fallen below the eligibility standards expected for their position.

City of Laval
Since May 2013 André has been advising the City of Laval and its interim commissioners on the employment relationship with certain of its officers whose conduct has come under scrutiny during the hearings of the Charbonneau Commission into corruption in Quebec’s construction industry. He has since been advising the City in connection with various sensitive files concerning City employees and on the adoption of policies to detect and prevent corruption.

Order of Chartered Professional Accountants
Since 2014 he has provided training sessions on human resources management and labour law in connection with the continuing professional education program of the CPA. 

In 2012 and 2013 André represented convenience-store owner Couche-Tard regarding complaints filed by CSN-affiliated unions in connection with a union organizing drive and allegedly related store-closings.

L’Allier Committee
In 2009 and 2010 André served on the L’Allier Committee, which was created by the Quebec Minister of Culture, Communications and the Status of Women to determine whether a consensus could be achieved for the purpose of proposing amendments to legislation affecting the status of artists.

Hapag-Lloyd’s Acquisition of CP Ships
In 2007, André advised Hapag-Lloyd Canada regarding its acquisition of CP Ships and the integration of its human resources.

City of Montréal
In 2007, André was retained as counsel for one of the boroughs of the City of Montréal in the mediation/arbitration of the first agreement on local conditions in respect of the matters referred to in Section 49 of the City’s charter.

Canadian Space Agency
In 2004, André was retained on an urgent basis by the Canadian Space Agency for the resolution of a dispute among the members of the Canadarm team.

Société de Transport de la Communauté Urbaine de Québec
In 2003, André was hired by the S.T.C.U.Q. (now the R.T.C.) regarding a management grievance for the recovery of $1.9 million in losses caused by an illegal union strike.

In 2001, he was retained to advise the S.T.C.U.Q. in connection with its bid to improve its labour relations. As part of this mandate, he also acted as spokesperson for the S.T.C.U.Q. in connection with the renewal of its collective agreement with its employees, and then as counsel in a dispute arbitration prescribed by a special statute.

Department of National Defence
In 2001 André’s services were retained by the Department of National Defence’s 202nd Workshop Depot unit for the negotiation and implementation of a unique human resources reorganization plan with a view to meeting new Government of Canada standards requiring this unit to meet the same performance criteria as the private sector.

Para-public corporation
In 2000, André acted as presenter and trainer in connection with the first “win-win” or “interest-based” negotiation ever undertaken by one of the province’s major para-public corporations.

Bell Canada
In the late 1990s, he served as counsel to the acquirer in connection with Bell Canada’s collective agreement negotiations with its telephone operators, whose services Bell sought to permanently outsource.

Appearances before the Canada Industrial Relations Board
From 1996 to 1999 André was involved in a series of cases before the Canada Industrial Relations Board regarding the change of an employer’s representative in regional collective agreement negotiations with stevedores in the ports of Québec City and Bécancour.

Aéroports de Montréal
During 1994, as counsel to Aéroports de Montréal, he consolidated the federal public service’s 22 bargaining units into the four current bargaining units. He was then mandated by Aéroports de Montréal to establish the objectives and negotiation strategy for the initial collective agreements with those four bargaining units. During the lead-up to the signing of those collective agreements, he served as employer spokesperson at critical times during negotiations with the bargaining units.





Other Publications

2017 – Artificial Intelligence and its Impact on Human Resource Management (in French)

2017 – Georges Samoisette Fournier and André Sasseville, “L’employé sonneur d’alarme dans la lutte contre la corruption: Outil efficace ou obstacle à la Gestion des ressources humaines” (Whistleblower employees in the fight against corruption: effective tool or obstacle for human resources management), Développements récents en droit du travail, Yvon Blais, 2017, 34 pages

2016 – “Rapports collectifs de travail : les disparités de traitement envers les salariés des nouvelles générations” (Collective Labour Relations and New Generations of Employees)

2013 – Robert P. Gagnon, “Le droit du travail du Québec” (Quebec labour law), 7th ed. by Bernard Cliche, Yann Bernard and André Sasseville, Yvon Blais, 932 pages


Langlois Knowledge

External Conferences


2019 – Was invited by the Order of CHRP to speak at their annual convention on “The Scarcity of Labour and its Impacts on Human Resource Management and Employment Law”.

2018 – Invited by the Order of Certified Human Resources Professionals (CHRP) to speak at its annual convention, regarding work-life balance and the right to disconnect.

2017 – Invited to speak at a conference on recent developments in labour law regarding whistleblower employees in the fight against corruption.

2014 – Invited by the Order of Certified Human Resources Professionals (CHRP) to speak at a conference on labour relations, regarding employer communications with employees during a union certification campaign.

2012 – Moderator of a panel discussion on the virtual workplace during the annual convention of the Quebec Order of Certified Human Resources and Industrial Relations Professionals

2011 – “Sharpen your negotiating skills to achieve more effective, efficient and economic management of your disability insurance files”, Canadian Institute, together with Martine Bergeron

2010 – Presentation in connection with the training program of the Quebec Order of Certified Human Resources and Industrial Relations Professionals, entitled “The role of the manager in negotiating collective agreements”

2009 – “New means of communication: useful business tools or an evil to be shunned?”, annual convention of the Quebec Order of Certified Human Resources Professionals, together with Martin Pelletier, CIRC, articling student

2006-2007 – Case law update on psychological harassment for the annual symposium on psychological harassment of the Quebec Order of Certified Human Resources and Industrial Relations Professionals

2005 – “When an accident triggers criminal liability on the part of the company and its management” for the Regroupement des Universités québécoises (association of Quebec universities) and Aon Parizeau Inc.

2005 – “Psychological harassment: definition and application” for the members and staff of the Commission des relations du travail du Québec (Quebec labour relations board)

2005 – “Reasoned negotiation: preferred approaches and role of the employer’s team members” for the Quebec Order of Certified Human Resources and Industrial Relations Professionals

Since 2004 – Lecturer in the continuing education program of the Quebec Order of Certified Human Resources and Industrial Relations Professionals on the following topics: “How to terminate the employment relationship”; “Disciplinary management: loyalty, competence, presenteeism”; “Improve your labour relations through reasoned negotiating”

2004 – “Day-to-day disciplinary management: a proactive and winning approach” for the Quebec Order of Certified Human Resources and Industrial Relations Professionals

2004 – “Pay equity – urgent action required” for the University of Quebec

2004 – “Collective dismissal” for Insight

2004 – “Symposium on psychological harassment in the workplace: rights, obligations and remedies” for the Quebec Order of Certified Human Resources and Industrial Relations Professionals


From 2009 to 2017 – Lecturer in labour law at the Quebec Bar’s professional training school

Since 2007 – Member of the board of directors of Langlois Kronström Desjardins

Since 1999 – Certified Trainer, Société québécoise de la main-d’oeuvre

1993-2003 – Director of credit union Caisse populaire Desjardins Domaine Saint-Sulpice, of which he has been secretary and chair

1981-2001 – Lecturer at the Université de Montréal, successively in collective labour relations law and employment law

Professional Associations

2007-2012 – Member of the board of directors of Langlois Kronström Desjardins

Since 2003 – Member of the Mediation and Arbitration Institute (Institut de médiation et d’arbitrage du Québec)

Since 1984 – Member of the Order of Certified Human Resources (Ordre des conseillers en ressources humaines agréés) (CHRP) of which he was the syndic between 2006 and 2011 and was administrator between 2017 and 2019

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