Atty. William Sproull
Bill graduated from Queens University in 1987 with a B.A. (Hons) in History and Political Science.
Insurance Law Attorney · Serving Toronto, ON
Profile Summary
About William Sproull at a Glance
William Sproull is a insurance attorney based in Toronto, Ontario, practicing at Zarek Taylor Grossman Hanrahan LLP. Recognitions include Best Lawyers in America — Insurance Law (2026). Serves clients in Toronto, ON and the surrounding metropolitan area.
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About William Sproull
- Bill graduated from Queens University in 1987 with a B.A. (Hons) in History and Political Science
- He then did M.A. work at the Norman Paterson School of International Affairs at Carleton University, and after receiving his LL.B. from Dalhousie Law School in 1993, he articled with the boutique insurance firm of Dyson & Kacaba, Bill was called to the Bar in 1995, and he joined the firm in 1997 after doing plaintiff personal injury and general litigation work for two years
- Bill practices insurance defence litigation with a focus on automobile tort and accident benefit claims
- He also handles priority and loss transfer disputes between insurers, and he is a co-chair of this practice group within the firm
- He has regularly represented clients at discoveries, mediation, pre-trials, arbitration pre-hearings and hearings, and appeals since 1995, and he has numerous reported decisions at the Financial Services Commission of Ontario involving entitlement issues, expenses, interim and preliminary motions, special awards and appeals
- Bill also has considerable experience representing clients at all levels of the Ontario Superior Court in both a first-party and a third party context
- Bill handles complex accident benefit and tort matters, and he has recent jury trial experience involving the successful defence of threshold and damages issues
- His current practice areas include the defence of catastrophic impairment claims, appellate advocacy, general liability as well as priority and loss transfer disputes
Practice Areas Explained
William Sproull's Areas of Legal Practice
Each practice area below reflects the types of cases William Sproull handles, with a practical overview of what that area of law involves and how it may apply to your situation in Toronto.
Insurance Law in Toronto
Insurance attorneys for coverage disputes, bad faith claims, denied claims, and policy disputes.
William Sproull is one of 120,903 insurance attorneys indexed nationally. Browse insurance attorneys in Ontario →
Jurisdictional Context
Why Local Counsel Matters in Toronto
Practicing law in Ontario. Legal matters in Ontario are governed by state-specific rules of civil and criminal procedure, statutes of limitations, and substantive law. Cases originating in Toronto are typically filed in the local municipal court or the appropriate Ontario state district court, depending on subject matter and amount in controversy. An attorney licensed in Ontario brings working knowledge of local procedural deadlines, judicial practices in this venue, and the substantive law that applies to cases brought here. Out-of-state attorneys generally cannot represent clients in Ontario courts without local counsel or pro hac vice admission.
Toronto Courts and Legal Process
Choosing a Toronto-based attorney means your counsel already knows the local docketing timelines, preferred filing formats, and how individual judges typically rule on procedural motions — details that only come from practicing in this jurisdiction day after day. That local familiarity can translate to better strategy, faster filings, and fewer costly surprises.
Looking for additional Ontario attorneys? Browse all attorneys in Toronto or all attorneys in Ontario.
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Professional Profile
Why Clients in Toronto Choose William Sproull
Selecting an attorney is one of the most consequential decisions you can make when a legal matter arises. Below are the core qualities that distinguish William Sproull's practice in the field of insurance.
Focused Insurance Practice
Concentrating on insurance means William Sproull's knowledge of relevant statutes, case law, and procedural nuances stays current — unlike generalist practices that spread attention across unrelated fields.
Local Presence in Toronto
A Toronto-based practice means William Sproull attends hearings in the same courthouses, knows the local clerks, and understands the unwritten scheduling norms that affect every case filed here.
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William Sproull's Practice Areas & Specializations
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