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With more than a decade of private practice experience, Louis has built an enviable reputation thanks to his extensive knowledge of all aspects of family law, which he will not hesitate to draw on in order to resolve your case.
Whatever issues are at stake, e.g. international child abduction, complex disputes between spouses involving alimony or child support, allocation of assets belonging to trusts or private companies, Louis will find a pragmatic solution to help you achieve a settlement or devise a litigation strategy to optimize your representation in the courtroom.
In addition to his family law practice, Louis has significant experience in the areas of trust and estate litigation. He has spoken at various conferences, including at the AMFP, where he discussed the impact of trusts in connection with family law litigation.
Widely recognized in the family law community, Louis was presented with the “Family Law Leaders of Tomorrow” award by the Montréal Junior Bar Association (Jeune Barreau de Montréal) in 2012. He also served on the Barreau de Montréal’s Family Law Superior Court Liaison Committee from 2015 to 2018.
Louis regularly appears before Québec’s Superior Court and the Court of Appeal and has also pleaded before the Supreme Court of Canada.
Media recognition and expertise
Une fiducie n’est pas échappatoire La Presse+
Héritier de sa conjointe qu’il a tuée Isabelle Richer, Radio-Canada
Une ex-policière accusée d’avoir incité une amie à se suicider pour toucher un héritage Isabelle Richer, Radio-Canada
Bachelor of Law (LL.B) Université de Sherbrooke
D.E.S.S. in Tax Université de Sherbrooke
Juris Doctor in Common Law Université de Sherbrooke
2010
Whatever the issues at stake, Stéphanie will represent you with tenacity, rigour and determination.
A seasoned family law lawyer and experienced litigator, Stéphanie focuses her practice on complex disputes involving both parenting time and financial issues. She has extensive experience in high-conflict cases and is particularly skilled at quickly mastering complex situations, identifying the issues that truly matter and developing a strategy tailored to each case.
While Stéphanie is an experienced and determined litigator, she firmly believes that the best outcome is not always achieved in a courtroom. Whenever circumstances allow, she is equally committed to resolving disputes through negotiation. A skilled and pragmatic negotiator, she knows when to push, when to compromise and, most importantly, how to structure settlements that protect her clients’ interests and provide lasting solutions. Her approach is always driven by the same objective: achieving the best possible result for her client, whether through a negotiated settlement or litigation.
A significant part of Stéphanie’s practice is devoted to disputes involving parenting time and major decisions concerning children. She regularly acts in particularly contentious cases involving difficult interpersonal dynamics, serious allegations, psychosocial assessments, relocation issues and school choice. She has extensive experience in cases where the parties’ positions are highly polarized and where a rigorous and measured strategy is essential.
Her experience with high-conflict personalities and dynamics is not limited to disputes concerning children. Throughout her career, Stéphanie has represented clients in cases where the level of conflict itself becomes a significant aspect of the litigation. She knows how to navigate these dynamics without losing sight of the determinative legal issues and her clients’ long-term objectives.
Stéphanie also has significant expertise in cases involving complex financial issues. She regularly represents professionals, entrepreneurs and business owners in disputes involving, among other things, income determination, privately held corporations, holding companies, trusts and substantial family wealth.
Her experience allows her to handle cases requiring knowledge that extends beyond the traditional boundaries of family law, particularly in the areas of corporate and tax law. She regularly works with forensic accountants, tax specialists, notaries and other professionals to analyze complex financial structures and develop a comprehensive strategy, both in negotiations and before the courts.
Stéphanie also has particular experience with extraordinary remedies, including Mareva injunctions, both in seeking and defending against such relief.
Before founding Dessureault Herbert, Stéphanie practised for more than ten years at a highly regarded boutique law firm, where she became a partner, as well as at a national law firm that maintained a family law department at the time.
Recognized by her peers, Stéphanie has been named to Best Lawyers in the area of Family Law in both 2025 and 2026.
Stéphanie also practises estate litigation and has delivered numerous conferences and presentations, including to financial institutions and various professional orders.
Bachelor’s in Political Science Concordia University
Bachelor of Law (LL.B) Université de Québec à Montréal
2013
Drawing on over a decade of experience in family and estate law, Jillian will help you regain control in the midst of conflict.
Jillian focuses on what truly matters, cutting through distraction and emotion so her clients can move forward with confidence, no longer reacting to conflict but actively shaping the path ahead. She is skilled in managing cases involving complex psychological dynamics such as narcissistic personality disorder and borderline personality disorder.
Jillian has represented clients at every level of court in Québec. While she is a persuasive and composed presence in the courtroom, many of her clients benefit from her ability to resolve matters outside of it. Known for her strategic and measured approach, she is a skilled negotiator who works to secure meaningful, lasting outcomes. Her focus is always on achieving results that reflect her clients’ priorities while reducing unnecessary tensions and cost.
Her practice includes complex financial issues such as income determination for professionals and business owners, as well as matters involving parental time, child support, school choice, relocation, international child abduction and spousal support. Jillian also handles estate litigation and is adept at navigating the intersection of family and succession law.
In addition to her practice, Jillian volunteers as an advocate at women’s centres for victims of domestic violence.
Before studying law, she earned a Bachelor of Commerce from McGill University’s Desautels Faculty of Management.
Jillian is bilingual and practices in both English and French.
Bachelor of Commerce McGill University
Bachelor of Laws (LL.B) University of Montreal
Juris Doctor (J.D.) University of Montreal
2014
Camille is a brilliant, effective and dedicated lawyer; she is also fearless. She will be your ally of choice in any legal dispute.
After her illustrious academic career, including a bachelor’s degree in civil law, a Juris Doctor from McGill University’s Faculty of Law in 2020 and a master’s in human rights law and humanitarian action from Sciences Po University in Paris, France, Camille launched her legal career at a well-known family law firm, where she articled for a Superior Court judge and then for Stéphanie Herbert.
Ms. Lustière subsequently decided to take on a new challenge by joining Louis and Stéphanie at Dessureault Herbert.
Camille’s practice touches on all aspects of family law, including youth protection. She also practices civil law and has worked on estate litigation cases with Stéphanie, some of which involved international issues.
Camille has already pleaded a number of cases before the Court of Québec (youth chamber), the Superior Court and the Court of Appeal.
2012-2015: Bachelor’s Degree in Human and Social Sciences
2015-2017: Master’s Degree in Human Rights and Humanitarian Action (Paris School of International Affairs)
2017-2020: JD/BCL at McGill University
2022
Flore stands out for her professionalism, meticulousness, and human approach, skillfully blending empathy with precision.
Flore has a bachelor’s degree in law from the University of Quebec in Montreal (UQAM) and continued her training at the Quebec Bar School before embarking on her career as a lawyer. Throughout her journey, she has acquired valuable expertise at two specialized firms, where she refined her skills in family law and civil law. Her experience spans various areas, including divorce, child custody, and contractual disputes, in which she has consistently demonstrated efficiency and expertise, even when dealing with complex issues.
Flore then chose to embark on a new professional adventure by joining the team at Dessureault Herbert Avocats.
Passionate about law, Flore is recognized for her expertise in case preparation, particularly in research, drafting legal documents, and organizing files for hearings. Thanks to her meticulousness and dedication, she provides essential support to trial lawyers, ensuring that every detail is carefully addressed in the development of effective and tailored legal strategies.
Flore distinguishes herself as a trusted collaborator due to her meticulous approach, unwavering integrity, and her ability to understand the human dimensions inherent in each case, especially in a field where these skills are particularly valued.
2017-2019: College diploma in Humanities, Justice & Law Jean-de-Bréboeuf College
2019-2022: Bachelor of Laws University of Quebec in Montreal
2024
Driven by a genuine desire to help people move forward and to find practical, lasting solutions, William joined Dessureault Herbert to practice law in a manner that reflects the firm’s human and client-centered values. He is committed to building relationships of trust and to providing legal support that is both rigorous and approachable.
William holds a Bachelor of Laws from the Université de Montréal. He began his legal career as an intern with the CNESST, where he appeared on multiple occasions before the Administrative Labour Tribunal and the Court of Québec. These early experiences allowed him to develop strong courtroom instincts and a thoughtful, strategic approach to litigation.
Prior to joining the firm, William also worked in legal research alongside an emeritus professor specializing in contract law. In that capacity, he contributed to the drafting of a doctrinal chapter addressing legal capacity. This academic discipline, combined with hands-on advocacy experience, now informs and strengthens his practice in family and civil law.
William approaches each mandate with empathy, structure, and clarity. He recognizes the emotional complexity that often accompanies family matters and strives to guide clients with attentiveness, transparency, and respect. Whether advocating before the courts, negotiating settlements, or providing strategic advice, he remains focused on protecting his clients’ interests with professionalism, diligence, and care.
2019–2021: College Diploma in Social Sciences: Justice, Culture and Societies with Mathematics, Collège Montmorency
2021–2024: Bachelor of Laws, Université de Montréal
2025
Our legal professionals are recognized specialists in the fields of family and estate litigation. To defend your interests, they strive at all times to ensure that their work meets the very highest standards of competence and ethics. Our approach involves using all our legal skills and knowledge to find creative and comprehensive solutions designed to be of assistance to you.
