Hi,My sister's visitor visa got rejected twice reason being she does not have strong ties with her home country.She has a medical history(epilepsy)due to which she is completely dependent on my parents.My parents have a visitor visa but they cannot visit me without my sister.Is medical reason not enough for my sister to get her visitor visa? She has a doctor in India whom she is been visiting since childhood.She will visit Canada with my parents and go back to India with them.Why will she live here if her parents and her doctors are in India?Can anyone please help