You have been named guardian for an adult family member who cannot manage their own affairs, and now something has gone wrong. Maybe they damaged someone's property, caused an injury, or triggered a financial loss. The question lands hard: can someone sue you personally for what they did?
The short answer is that guardianship alone does not make you vicariously liable for the dependent adult's actions. Canadian law treats dependent adults as individuals with their own legal capacity to be sued, even when a guardian has been appointed to make decisions on their behalf. A guardian's role is to make personal care decisions or manage certain affairs for the adult, not to serve as an insurer against everything that adult does in the world. If a dependent adult commits a tort, the claim runs against the adult's own estate in most cases, not against the guardian's personal assets.
That said, there are circumstances where a guardian can face personal exposure. The most important one is a failure in the duty of care that comes with the guardianship role itself. If a court or a third party can show that you, as guardian, were negligent in how you supervised or arranged care for the dependent adult, and that negligence contributed to the harm, you may be liable for your own breach of duty rather than for the adult's conduct. The distinction matters: this is not vicarious liability, where one person is automatically responsible for another's acts, but direct liability for your own failure to meet the standard of care expected of a guardian. Courts will look at what a reasonable guardian would have done in similar circumstances, taking into account the adult's known behaviours, the resources available, and the foreseeability of the harm.
Provincial guardianship statutes frame the guardian's obligations differently across Canada, but the underlying principle is consistent. The Adult Guardianship and Trusteeship Act in Alberta, the Patients Property Act in British Columbia, and similar legislation elsewhere all impose duties on guardians to act in the adult's best interests and to exercise reasonable care. None of these statutes transform the guardian into a guarantor of the adult's conduct. They create a standard against which the guardian's own actions can be judged if something goes wrong.
One complicating factor is the involvement of a public trustee or public guardian, which exists in every province. Where a public body manages the adult's finances while a private guardian handles personal care, the lines of responsibility can blur in the eyes of a third party seeking compensation. A claimant may name everyone involved, hoping the court sorts out who is liable for what. In that situation, understanding exactly what authority you hold and what duties attach to it becomes critical.
The dependent adult's own estate is usually the first target for any claim. If that estate has assets, those assets can be used to satisfy a judgment. If it does not, or if the adult lacks the mental capacity to be found liable in the first place, the claimant may look elsewhere. That is when the guardian's own conduct comes under scrutiny.
Getting this wrong can cost you years of stress and tens of thousands of dollars defending a lawsuit that hinges on whether you met a standard of care you may not have known applied to you. A business owner who also serves as a family guardian does not need a lawyer on retainer to navigate these obligations, but they do need something that flags when a legal exposure is forming and helps them respond before it spirals. That is the gap Binder exists to fill. If you have been in this situation or have questions about guardian liability, share your thoughts in the comments below.