Navigating Mental Capacity and Guardianship in Ontario’s Estates Law: Lessons from Francois v. Francois, 2025 ONSC 589
By: Maddi Thomas, associate and Sukhman Sangha, articling student Gowling WLG (Canada) LLP Mental capacity continues to be a growing area of focus in estates law. Capacity, defined under the Substitute Decisions Act, 1992 (“SDA”) as the ability to understand and appreciate decision consequences, is assessed through medical and legal evaluations. Declining capacity heightens vulnerability to financial abuse, such as unauthorized transactions or neglect by fiduciaries like guardians unaware….





