Pace Law Firm
March 20th, 2026
When Capacity Is In Question: Personal-Care POAs & Guardianship For Older Adults In Ontario
Families rarely plan for capacity disputes. They emerge in real time: a sudden hospitalization, a dementia diagnosis, a new relationship, unexplained financial or care decisions, or conflict between adult children and clinicians about consent. When capacity is in question, the issue is not simply “who should decide.” It is whether the older adult can still make a specific decision, and if not, which legal authority applies, an existing Power of Attorney (POA), a statutory substitute decision-maker, or a court-appointed guardian.
A useful way to approach these matters is to treat them as evidence-based and time-sensitive.
Ontario law distinguishes between capacity to make treatment decisions and capacity to grant a POA. It also separates personal-care decisions from property decisions. Counsel’s role is to clarify which capacity standard applies, assess whether a POA is valid and effective, prepare for urgent guardianship or Consent and Capacity Board (CCB) proceedings where needed, and structure records to better support decisions if they are reviewed.
Capacity is decision-specific. It is not a single, permanent label.
In Ontario, the question is often whether the person can understand the relevant information and appreciate the reasonably foreseeable consequences of a decision. In practice, a senior may be capable of deciding where to live but not capable of consenting to a complex treatment, or capable in the morning but not later in the day due to delirium or medication effects.
