Profile
Niagara’s Premier Full-Service Law Firm
Sullivan Mahoney LLP is one of the largest and most established law firms in the Niagara Region, with a history dating back to 1953. For over seven decades, we have been a pillar of the St. Catharines legal community, providing sophisticated and pragmatic legal advice to individuals, businesses, and institutions. Our firm is built on the legacy of our founders, Philip H. Sullivan and C. Hugh Mahoney, who believed in hard work, integrity, and an uncompromising commitment to clients. With a team of over 30 skilled lawyers and a large support staff, we offer the depth of expertise typically found in large metropolitan firms, combined with the personalized attention and cost-effectiveness of a local practice. Whether you are a multinational corporation or an individual seeking personal legal guidance, we have the specialized knowledge to assist you.
Business and Commercial Law
We are a trusted partner for businesses across Niagara. Our business law group advises on all stages of the corporate lifecycle, from Business Formation and incorporation to mergers, acquisitions, and succession planning. We assist with contract negotiation, shareholder agreements, and commercial real estate transactions, ensuring that your business interests are secured. If disputes arise, our Civil Litigation team is prepared to advocate for you in court, handling complex commercial disputes, construction liens, and employment matters.
Personal Legal Services
Sullivan Mahoney LLP is deeply committed to serving the personal legal needs of our community. Our comprehensive services include:
- Family Law: Providing compassionate representation in divorce, custody, and support matters, with a focus on achieving fair resolutions.
- Wills and Estates: Helping clients preserve their legacy through careful estate planning, trust formation, and estate administration.
- Personal Injury: Advocating for victims of accidents to ensure they receive fair compensation for their injuries and losses.
- Criminal Defence: Protecting the rights of individuals facing criminal charges with vigorous and strategic defence.
A Tradition of Excellence
Our firm’s longevity is a testament to the trust we have earned from generations of clients. We believe in a multidisciplinary approach, where lawyers from different practice areas collaborate to provide holistic solutions. If you need to hire a lawyer who can handle every aspect of your legal life, Sullivan Mahoney LLP is the clear choice. We are conveniently located in the heart of downtown St. Catharines and are ready to put our experience to work for you. Contact us today to schedule a consultation with one of our specialists.
Specializing In
Corporate Law, Civil Litigation, Family Law, Real Estate, Criminal Defence
Address & Location
40 Queen St, St. Catharines, ON L2R 5G3
Building Location
The firm occupies a prominent, historic standalone building in Downtown St. Catharines. It is located on Queen Street, between King Street and St. Paul Street, directly in the financial and legal district. The building is easily potentially recognizable by its classic architecture and firm signage.
Suite Access
The firm occupies the entire building or main floors. The main entrance is directly off Queen Street. The reception area is on the ground floor, and the building is fully accessible.
Parking Details
There is limited client parking available at the rear of the building. Additional public parking is available at the nearby Garden Park lot or metered street parking along Queen Street.
Public Transit
Located steps from the main St. Catharines Transit Downtown Terminal, providing immediate access to all city bus routes. The St. Paul Street corridor is also well-served by transit.
Photos
Sullivan Mahoney LLP – St. Catharines, ON
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