Sullivan Mahoney | Leaders in Law

We are Niagara’s largest pre-eminent law firm.

Our Firm has established a tradition of integrity, skill and professionalism in all that we do. Our Lawyers have earned a reputation for excellent service, dedication, commitment and results. We firmly believe in professional development and strive to continually learn and grow to better serve you, our clients. Sullivan Mahoney LLP is also dedicated to public involvement. Our men and women contribute to our communities through donations, sponsorships and participation on volunteer organizations and committees.

Explore our site to learn more about who we are and how we can help you.


Any information contained on this website should not be taken or construed as legal advice. Please contact one of our lawyers directly and establish a retainer with them if you wish to obtain legal advice.  Please do not send any confidential information by e-mail or otherwise unless a retainer with the firm has been established and confirmed by us.  All of the lawyers in our firm are licensed to practice law only in the Province of Ontario, Canada (unless otherwise specifically stated), and not in any other jurisdictions.