What is a court-appointed assessor or visitor's role in an Ontario capacity hearing?

In a guardianship or other capacity-related proceeding, a court can direct that an independent, qualified person visit and assess the individual whose capacity is in question, providing the court with an impartial report on that person's actual functioning and, where relevant, their own expressed wishes about the proceeding. This gives the court information beyond what the parties themselves present, since family members and other parties involved in a contested case may have their own interests in the outcome.

This kind of independent report serves a similar purpose to the Office of the Children's Lawyer's role for minors or the Public Guardian and Trustee's role for incapable adults more generally: making sure the person at the centre of the case, who may not be able to fully participate in the litigation themselves, has their actual situation and wishes properly represented to the court rather than simply inferred from what other parties say about them. Because this kind of independent evidence can significantly influence how a contested capacity proceeding turns out, anyone involved in this kind of case should discuss with their lawyer how an independent report might affect their position.