Hi, i applied for a Visitor Visa for my sister who is bed ridden due to stroke. I narrated the entire story in my application and identified that in my home country there are no specialized rehab facilities available and that i will bear all financial cost. Her application was declined citing "lack of evidence that they will return in 6mos.". I am a Canadian citizen, my sister is in her mid 50's and single. My mother has been granted a Super Visa but we are in a quandary as i do not have any other sibling or family member who can take care of her. My concern is that i want my sister to regain mobility by accessing rehab/medical facilities designed for that purpose. What options are available to me at this stage to successfully argue my case with immigration? Thanks