My parents were sponsored by my sister and her husband. They are now Canadian Citizens. A couple of months ago my father had a blond clot and needed brain surgery. Although he is now mentally awake and is aware of things, he needs full mobility assistance and currently in long term rehab. There is a lot of out-of-pocket expense for the rehab and long term care. My sister's husband insisted that they go back to their country of origin so he will not be responsible for their expense. But he is unable to move on his own and it will be extremely difficult for him to travel 23 - 30 hrs of flight with a couple of connections. Now my sister husband has lied and told the social workers that my parents are wealthy and should be responsible for their medical expense. The social workers believing his lies are asking my parents about it. Are my parents responsible for their medical expense even though they haven't had any income in Canada?