Mark J. Stewart Professional Corporation Mark J. Stewart Professional Corporation Search | Advanced Search | New Members | Coupons and Discounts | All Categories   Business & Professional Services >> Legal Mark J. Stewart Professional Corporation 411 Queen Street, Suite #6Newmarket, ON L3Y 2G9 | View on Google Maps Mark Stewart (905) 836-0088 | fax: (905) 895-0571 Visit Site Law Firm Member Since: 2023 Send a message to: Mark J. Stewart Professional Corporation Your Name: Your Email: Subject: Message: (Date: 10/13/2024) If your business isn't here, contact us today to get listed!