Thomas H. Marshall, Q.C. (Retired)

Practice Areas

Family Law ~ Wrongful Dismissal ~ General Litigation ~ Wills & Estates ~ Real Estate


A highly respected Oakville litigation lawyer with over 50 years experience, Mr. Marshall’s practice focuses on family law, wrongful dismissal, general litigation, real estate, wills and estates.

He has litigated many complex cases, and has represented clients in all levels of Courts, including the Ontario Court of Justice, Ontario Superior Court of Justice and the Ontario Court of Appeal. Mr. Marshall has also represented clients as counsel in other jurisdictions throughout Canada.

Mr. Marshall is newly remarried and has three adult children, namely, his son Geoff, who has two children and is a successful Investment Counsellor, his daughter Ginny, who has one daughter and is a computer software expert and his daughter Doctor Alison, who has two children and who is a Professor of Chinese Culture and Chinese Philosophy at Brandon University in Manitoba.

Community Services

A highly regarded member of the legal community, Mr. Marshall was awarded the Queen’s Royal Jubilee medal for volunteerism in 2002 and he has served as:

  • Warden of St. Jude’s Church
  • Board Member of the Oakville Golf Club
  • Board Member of the Canadian National Sportsman Show
  • Former President and Board Member of the Royal Military College Foundation
  • Board Member of the Royal Military College Club
  • Former President and Board Member of the Oakville Optimist Club

Education, Bar Admission & Associations

University of Toronto, BASc (Civil)
Queens University, LL.B.
Called to the Ontario Bar in 1970
Appointed Q.C. in 1981

Member of the Canadian Bar Association

Member of the Ontario Bar Association

Member of the Halton Law Association

Member of the Oakville Chamber of Commerce

Extra-Curricular Activities

Mr. Marshall has a great interest in traveling in Latin America and has traveled extensively through Mexico and has visited Costa Rica and Cuba. He is currently living in Toronto, skiis with the High Park Ski Club and sings bass in the Islington United Church Choir.

Mr. Marshall golfed quite extensively and played tennis competitively. After a tennis pro suggested that further fitness was required, Mr. Marshall became an ultra-marathoner across North America and ran 50-mile races, achieving a good fitness level. He also participated in cross-country and downhill skiing. During his single years, he enjoyed camping, hiking, and bicycling in Algonquin Park, his favourite spot.

While at the U of T in 1960-61, Mr. Marshall sang with the Hart House chorus. He has participated in many cabarets across Canada with the Engineering Institute while in Calgary in 1962 and at the Oakville Club.

Military & Engineering Career

Prior to his call to the Ontario Bar, Mr. Marshall received a Civil Engineering degree at RMC and then went onto the University of Toronto for one year and obtained his BASc (Civil). He started his military career with the Armoured Corps during two summers of phase training before he transferred to RCAF as a pilot and took pilot training for two years. Mr. Marshall was then posted to the RCAF Station in Calgary as a CE officer in the Construction Engineering Branch doing engineering design and supervision of isolated construction across Canada. He spent eight months at RCAF Station Cold Lake, AB, constructing runway barriers for the CF-105, and bombing ranges at the Primrose Lake location. He had three camps where various ranges were being constructed. He then spent a further six months at RCAF Station North Bay doing construction on the NORAD underground headquarters. He also travelled to remote places in Canada such as Holberg, BC; Pagwa River, ON; Puntzi Mountain, BC; Beaverlodge, AB; Churchill, MB, Beausejour, AB; and other lesser known high spots. He received his P.Eng. from Alberta and Ontario.

After returning to civilian life in 1963, Mr. Marshall worked as a Design Engineer with James F. Maclaren Consulting Engineers in London, ON. In the fall of 1965, Mr. Marshall left the field of engineering and entered law school.

After an illustrious career spanning more than six decades, Mr. Marshall retired from the practice of law on April 30, 2021.

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