By Steve Benmor ( August 5, 2025, 2:52 PM EDT) -- In D.F. v. R.W.F., 2025 ONCA 129, the Ontario Court of Appeal tackled the rare but increasingly important question of how family courts should manage decision-making and parenting arrangements for an adult child with a permanent cognitive disability — in this case, a 22-year-old man with Down syndrome who functions at the level of a four-year-old. This decision provides critical guidance to judges, lawyers and family mediator/arbitrators navigating parenting disputes that involve adult children who remain lifelong dependents....