In Canada, housing laws that protect ESAs can be tricky. The best way to ensure your province provides protection is by looking at how that province's law defines ESAs. You also need to find out whether there is a specific act that protects persons with disabilities that include emotional or mental illnesses or conditions.
Most provinces seem to make room for fair housing for people with disabilities. In provinces where people with mental illnesses are protected by law, a landlord must provide them with reasonable accommodation despite there being a “no-pet” policy in place. The landlord is also not allowed to charge an extra pet fee or deposit. However, according to Canadian law, the owner of an assistance animal is must pay for any damages to the property caused by the animal.