Dear clients,

In the midst of the COVID-19 pandemic, our office has taken the necessary precautions to protect our clients, staff and lawyers. We want you to know that our law firm is fully operational and, as always, ready to serve your legal needs.

If you need to contact any of our lawyers, they will respond to you accordingly. If your matter is urgent or time sensitive, we ask that you contact (by phone or text) any one of our three management partners on their cell phones:

Me Consolato Gattuso at 514-815-7635

Me Rémi Bourget at 514-827-7364

Me Dino Mazzone at 514-949-3055

We thank you for your continued patronage and trust you and your family will stay safe and healthy.

Tetiana M.Gerych
Lawyer | Partner
Tetiana M.Gerych
Lawyer | Partner


Tetiana Gerych practices in the areas of employment and labour law, administrative law and civil law. She acts on behalf of both individual employees and employers as well as for professional associations in the broad range of matters that arise in the workplace, including termination of employment, restrictive covenants (e.g. non-competition clauses) and harassment complaints. She pleads regularly before all levels of administrative and civil courts, handling grievance arbitration, applications before the labour courts and pleading of matters before the Superior Court and Court of Appeal, including injunctive relief and judicial review.  


Tetiana’s practice also includes counselling on human resource practices and workplace regulations, advising on legislative compliance, counselling on workplace disputes, managing collective terminations and being regularly involved in mediation, conciliation and other alternate dispute resolution processes. She is an accredited mediator with the Bar of Quebec. Tetiana has considerable experience in negotiation of collective agreements and participates in the process, from developing and advising on negotiation strategies, to acting as spokesperson in negotiation sessions and to drafting proposals and text.


As a highly experienced litigator, Tetiana has also handled complex civil litigation – professional liability, latent defects, Charter rights issues, personal injuries, corporate disputes and product liability, among others. She joined Gattuso Bourget Mazzone in 2013 and is the chair of its litigation department. 


Tetiana Gerych is a member of the Quebec Bar, the Canadian Bar Association, the Ukrainian-Canadian Bar Association and the Lord Reading Society. She serves as director on the board of the Canadian Foundation for Ukrainian Studies, was founding director and president of Music VivaVoce Inc. and is an active volunteer of the Kidney Foundation of Canada, having served as its national vice-president, director of both the national board and the board of the Quebec Division and on the Foundation’s governance committee. Tetiana also sits on the Clinical Ethics Committee and the Research Ethics Board of the Royal Victoria Hospital (MUHC). She has participated as an international election observer on multiple Canadian missions to Ukraine.






German (conversational)


  • Queen Elizabeth II Diamond Jubilee Medal 
  • Kidney Foundation of Canada National, David Ornstein Distinguished Service Award 
  • Kidney Foundation of Canada, Quebec Division, President’s Award