Best Criminal Defence Lawyers in Newmarket, ON
15 firms listed · 5 in Newmarket · 4 open 24/7 · 4 open weekends · 14 rated 4.5+
Data verified October 18, 2026
Epstein & Associates
Semyonov Law
Daniella Guido, Barrister & Solicitor
Domenic Manzo
Sondhi Defence Professional Corporation
These 15 firms listed for Newmarket, ON act for people facing criminal charges. What each says about the charges it defends and the courthouses it covers comes from its own website; ratings and quotes come from public reviews.

Area overview: Newmarket, ON
5 of the 15 firms we list are based in Newmarket; the other 10 serve Newmarket from towns including Richmond Hill (21 km), Aurora (6 km) and East Gwillimbury (10 km). The firms on this page are rated from 4.2 to 5.0 across 2,156 reviews; 6 have 50 or more reviews and 14 are rated 4.5 or higher. The topics that come up most in reviews of the firms on this page are "expertise", "results" and "knowledge". 4 are open around the clock and 4 are open on weekends. The practice areas the firms on this page list most often on their websites are civil litigation (3), criminal law (3), bail hearings (2), family law (2) and real estate law (2). 1 shows a licence on its website. Domain records put 5 websites of the firms on this page at ten or more years old; the oldest dates from 2007. 4 offer urgent consultations and 4 offer a free initial consultation. We have a website on file for 12 of the firms on this page; 10 publish a contact page and 8 list a public email. 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 firms outside Newmarket shown on this page?
5 of the 15 firms keep an office in Newmarket itself. The rest come from other towns. Ask whether counsel appears regularly in the courthouse where your matter is listed, because that familiarity is worth more than a short drive.




