Best Business Lawyers near Longueuil, QC
3 of these firms are based in Longueuil; the others serve Longueuil from Montreal (4 km) and Westmount (7 km).
1 open weekends · all 15 rated 4.5+
Data verified October 19, 2026
Leinhos Lalonde
Josiane Villeneuve
ALC Avocat | Droit Des Affaires
Lexstart
Sam Tardif Malek
The 15 firms listed for Longueuil, QC act for businesses on incorporation, agreements between owners, commercial contracts and sales. Everything a firm says about its practice and its billing is taken from its own website, and ratings come from public reviews.

Area overview: Longueuil, QC
The 15 firms on this page are rated from 4.5 to 5.0 across 1,001 reviews; 9 have 50 or more reviews. The topics that come up most in reviews of the firms on this page are "communication", "understanding" and "knowledge". 1 is open on Saturdays. Domain records put 7 websites of the firms on this page at ten or more years old; the oldest dates from 1999. We have a website on file for all 15 of the firms on this page; 7 publish a contact page; 10 list a public email and 2 take bookings online. We count these figures across the firms on this page; distances are straight-line, and hours and prices change, so confirm the details with the firm before you book a consultation.
Why are business law firms outside Longueuil listed on this page?
3 of the 15 firms sit at an address in Longueuil, and the rest come from other towns. Deal work travels well, so the province a lawyer is called in counts for more than the distance.