Sidney M. Horn
About Sidney M. Horn
Sidney M. Horn is a lawyer based in Montréal, QC and has been recognized in The Best Lawyers in Canada™ since 2006. Sidney M. Horn is recognized in the following practice areas:
- Montréal, Quebec
- Corporate Law
- Mergers and Acquisitions Law
- Securities Law
Current Firm: Stikeman Elliott LLP
Location: Montréal, QC
It takes just a few minutes to optimize your profile for clients looking to engage and lawyers who are ready to refer.
Activate your profile and highlight why your peers recognized in Best Lawyers today.
Nearby Lawyers
François Giroux is a top attorney recognized by Best Lawyers in the practice area(s) of Trusts and Estates. François, who practices law in Montréal, Quebec, has been recognized since 2023. This recognition is based on an exhaustive peer-review survey, reflecting the high esteem in which François is held by other top lawyers in the same geographic and legal practice area.
Misha Benjamin is a top attorney recognized by Best Lawyers in the practice area(s) of Information Technology Law and Technology Law. Misha, who practices law in Montréal, Quebec, has been recognized since 2026. This recognition is based on an exhaustive peer-review survey, reflecting the high esteem in which Misha is held by other top lawyers in the same geographic and legal practice area.
A leader in banking law and finance, Martin Sills specialises in Canadian and cross-border financing transactions. He regularly represents chartered banks, asset-based lenders, and other Canadian and foreign financial institutions, as well as corporate borrowers dealing with complex financing transactions. From drafting legal documentation on asset-based lending to syndicated loans, automotive financing, leasing, real estate transactions, and inter-creditor relations, he perfectly masters the...
Camille Janvier-Langis is a top attorney recognized by Best Lawyers in the practice area(s) of Tax Law. Camille, who practices law in Montréal, Quebec, has been recognized since 2025. This recognition is based on an exhaustive peer-review survey, reflecting the high esteem in which Camille is held by other top lawyers in the same geographic and legal practice area.
Geneviève Cloutier is a top attorney recognized by Best Lawyers in the practice area(s) of Insolvency and Financial Restructuring Law. Geneviève, who practices law in Montréal, Quebec, has been recognized since 2021. This recognition is based on an exhaustive peer-review survey, reflecting the high esteem in which Geneviève is held by other top lawyers in the same geographic and legal practice area.
Mr. Joanisse’s clients include corporations such as Xerox Canada, Garda and Neptune Technologies, as well as public entities such as the city of Saint-Eustache and the Agence Métropolitaine de transport, Greater Montreal’s public transit commission. Mr. Joanisse has represented his clients in the following capacities: Representing majority and minority shareholders in numerous oppression remedy actions before Quebec courts. Defending several corporations against oppres...
Ronald Toledano is a top attorney recognized by Best Lawyers in the practice area(s) of Information Technology Law. Ronald, who practices law in Montréal, Quebec, has been recognized since 2025. This recognition is based on an exhaustive peer-review survey, reflecting the high esteem in which Ronald is held by other top lawyers in the same geographic and legal practice area.
Éric Marquette is a top attorney recognized by Best Lawyers in the practice area(s) of Family Law. Éric, who practices law in Laval, Quebec, has been recognized since 2025. This recognition is based on an exhaustive peer-review survey, reflecting the high esteem in which Éric is held by other top lawyers in the same geographic and legal practice area.
Marcel Naud is a top attorney recognized by Best Lawyers in the practice area(s) of Intellectual Property Law and Privacy and Data Security Law. Marcel, who practices law in Montréal, Quebec, has been recognized since 2025. This recognition is based on an exhaustive peer-review survey, reflecting the high esteem in which Marcel is held by other top lawyers in the same geographic and legal practice area.
Bruno Floriani is a top attorney recognized by Best Lawyers in the practice area(s) of Technology Law. Bruno, who practices law in Montréal, Quebec, has been recognized since 2008. This recognition is based on an exhaustive peer-review survey, reflecting the high esteem in which Bruno is held by other top lawyers in the same geographic and legal practice area.
Explore and Learn
Recognizing Legal Leaders: The 2027 Best Lawyers Awards in Australia, Japan and Singapore
by Jamilla Tabbara
Market drivers, diversity trends and the elite practitioners shaping the legal landscape.
What AI Visibility Means for Lawyers
by Bryan Driscoll and Josh Rupall
AI tools increasingly interpret lawyers public information. Clear, consistent and credible sources help ensure they describe legal expertise accurately.
Musk v. Altman: The Lawyers Behind the Case
by Jamilla Tabbara
Meet the Trial Lawyers Shaping One of AI's Biggest Legal Disputes.
Can You Go to Jail at an Arraignment?
by Bryan Driscoll
Understanding What Happens at Your First Court Appearance.
The Best Lawyers in France 2027: Peer-Reviewed Excellence
by Jamilla Tabbara
Seventeen editions of peer trust, a growing profession and a dynamic legal market.
Announcing the 2027 Best Lawyers Awards: Austria, Germany and Switzerland
by Jamilla Tabbara
Celebrating the legal professionals throughout Central Europe.
When Is It Too Late to Stop Foreclosure?
by Bryan Driscoll
Understanding the foreclosure timeline, critical deadlines and the legal options that may still protect your home.
The Legal Teams Behind the Blake Lively–Justin Baldoni Settlement
by Grace Greer
A closer look at the legal teams and attorneys involved in the Blake Lively–Justin Baldoni litigation and its resolution.
How AI Is Changing the Way Clients Find Lawyers
by Jamilla Tabbara
Best Lawyers CEO Phil Greer explains how AI-driven search tools are reshaping legal marketing and why credibility markers matter.