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What is the Difference between a Litigation Guardian and Section 3 Counsel?

August 20, 2025 | Rebecca Kennedy, Adair Goldblatt Bieber LLP

When a party is incapable of instructing counsel, or his or her capacity is in question in a proceeding, there are safeguards in place in the Rules of Civil Procedure, R.R.O. 1990, Reg. 194 (the “Rules”), and the Substitute Decisions Act, 1992, S.O. 1992, c. 30 (the “SDA”) to ensure that the incapable party’s interests are protected. The Rules provide for the appointment of a litigation guardian for a party under disability, while the SDA provides for the appointment of “section 3 counsel” when the capacity of a person is in issue in a proceeding under the SDA. While a litigation guardian and section 3 counsel may have a similar purpose, their roles are quite different.

Section 3 counsel is, perhaps unsurprisingly, appointed pursuant to section 3 of the SDA, which provides as follows:

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