Pearsall Marshall LLP is a full-service Ontario law firm with offices in Windsor, Leamington, Kingsville, Tecumseh, Amherstburg, and Tilbury. Founded in Leamington in 1965 by Spencer Lorne Pearsall, the firm today has 13 lawyers practising corporate and commercial law, real estate, and wills and estates, among other areas, across Windsor and Essex County. It formed through the union of Pearsall Marshall Halliwill and Seaton LLP and Halliwill Seguin LLP.

Good to know

A person using a wheelchairWheelchair accessibleA professional woman in a suit beside a briefcaseWoman-ownedA rainbow pride heartLGBTQ+ friendlyA gold parking sign with a green checkmarkFree parkingA laptop showing a video callVirtual appointmentsA calendar with a checkmark beside a clockBy appointmentAn office interior with a desk and chairsIn-person services

Fees & payment

A clipboard with a speech bubble and a no-charge dollar coinFree consultation

This firm’s lawyers at a glance

Called to the bar
2002–2021 · median 10 years in practice 7 of 14 lawyers
Law schools
University of Windsor (7), University of Windsor Faculty of Law, Western University 9 of 14 lawyers

Offices 6

1222 Lesperance Rd

225 Erie St South

#6 2557 Dougall Avenue

1788 Division St N

61 Richmond St

18 Queen St S

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Listing compiled from the firm’s public website in July 2026. Verify licence status in the Law Society of Ontario directory ↗