Joseph Sullivan was born and raised in Hamilton, and called to the Ontario Bar in 1984. He founded his own firm in 1989, and was accredited as a Law Society of Ontario Certified Specialist in Civil Litigation in 1992-present (annually updated ).

Past President , Hamilton Law Association ,Hamilton Medical Legal Society ; past  Bencher ( Elected Board of  Governors ) Law Society of Ontario. Past Member Law Society Tribunal ( discipline ).

Joseph's mediation practice focused on bodily injury tort, accident benefits' disputes, long & short term disability claims,  bad faith insurance litigation, slip and fall cases, municipal claims, sexual assault claims ,historical abuse cases ,coverage issues, contractual disputes in commercial cases. property, lien,estate ,real estate  ,employment matters and professional liability - a wide variety of civil litigation matters .

Past extensive  jury trial experience as  counsel  including personal injury and insurance, bad faith insurance litigation, malpractice (medical, dental and legal) real estate litigation, tribunal advocacy, and commercial arbitrations. Practice before Financial Services Commission of Ontario (formerly Ontario Insurance Commission) and Courts at all levels.

Past defence practice  extensively dealt with  first and third party insurance litigation claims, including fire, property and life claims (1984-2017).

 Past  Retainer by The Law Society of Upper Canada to complete a Final Review of the Licensing Process Review Materials for Licensing Examinations (Bar Admission Course Materials for Civil Procedure)

Past member of the Law Society’s Civil Litigation Specialty Committee, a committee that made accreditation recommendations for new Certified Specialists to the Law Society of Upper Canada