My live-in caregiver has a Canadian work visa for 36 months. We want to take her to the USA with us ( Disney Land) and will apply for a USA tourist visa for her. Can she get back into Canada ok when we re-enter from the USA?
Yes, if your caregiver's TRV (stamped on the passport) is still valid, even if it is a single entry visa.
A single entry visa allows you to enter Canada only once. This visa may also be used for repeated entries into Canada from the USA or St. Pierre and Miquelon provided you do not enter another country. Such entries must occur within the time validated for your stay in Canada. For example, you may be given six months from the date you enter Canada at the port of entry.