Siona V. Sullivan

Mrs. Sullivan has practised in Ontario since 1985 primarily in the area of Personal Injury Law as a trial lawyer handling work for both plaintiff and defence. She has handled catastrophic injuries such as brain injuries, paraplegic and quadriplegic injuries, fatalities, loss of limb or function and represented minors in personal injury matters.

She has appeared before the Superior Court, the Court of Appeal, Divisional Court, and administrative tribunals such as Financial Services Commission of Ontario, the Motor Vehicle Accident Claims Fund and the Criminal Injuries Compensation Board.

She has worked for major insurers across the province conducting trials in numerous jurisdictions and provided opinions and advice to marketing boards on confidential matters. She has also handled cases in the areas of Administrative Law, Insurance law, General Civil litigation, and Appeals.

Mrs. Sullivan has served on court reform committees, charitable and educational organizations, participated in educational seminars, both as an organizer and as a lecturer, and actively mentors junior lawyers on an ongoing basis.

Siona Sullivan grew up in Guelph, Ontario with her sister and two brothers. She graduated from the University of Waterloo in 1980 with an Honours B.A. in Psychology. After graduating with an LLB from the University of Windsor in 1983, she began her Articles of Clerkship with Sullivan, Festeryga, Lawlor and Arrell in downtown Hamilton, Ontario.

Siona was called to the Ontario Bar in 1985 and joined the firm Harris Barr (which later became Daniel Wilson) in St. Catharines, Ontario.

In 1986, Siona married Joseph Sullivan, another litigation lawyer working mainly in Hamilton, Ontario. In 1995, Siona left Daniel Wilson to raise her three sons, Brendan, Ryan and Sean.

During this time however, Siona was both an Instructor of Civil Litigation and Professional Responsibility (Ethics) for the Bar Admissions Courses at Osgoode Hall (1994 – 2003). Siona also taught nighttime legal courses at Niagara College both at the Welland and St. Catharines Campus.

Along with teaching the law, Siona became a Deputy Judge for the Small Claims Court in Hamilton, Ontario; which she continues to do. (1995 – Present)

Siona Sullivan returned to the regular practice of law with Graves and Associates (now known as Graves Richard Harris) in 2001 in St. Catharines, Ontario.

In 2008, Siona ventured out founding her own firm, Sullivan Injury Law, in downtown St. Catharines and incorporated the firm in 2009.

The name “Siona” is often mispronounced and misspelled. It is Gaelic (Welsh), roughly translates to Janet and pronounced “Show-na” but Mrs. Sullivan will answer to any of the following: Shonna, Shona, Shiobah, Sonia, Sionna, or Showna!