Sullivan Mahoney | Leaders in Law

Over 60 Years as Niagara’s Pre-Eminent Law Firm.


From humble beginnings in a two man office,

the path to the present has witnessed Sullivan Mahoney  emerge as Niagara’s pre-eminent law firm. A firm providing cutting edge legal services through a team of 31 skilled lawyers and 40 legal assistants, law clerks and administrative support staff.

While the names on the doors of the Sullivan Mahoney Law Offices  have changed with time, our commitment to our vision and core values endures.

We are committed to maintaining the tradition of excellence established by those before us. We are firm in our resolve to provide strategic and cost effective advice in our vigorous pursuit to protect and add value to client interests.

The success of any law firm begins with its clients. We are grateful for the strong and long lasting relationships with a diverse group of clients and we are most appreciative of the trust and confidence they have always placed in us.