Thanks. Its case study that I am interested in. I am a Canadian, so it's not my case.
And I know the first point to be correct.
I am advising that they try anyways. They don't have any living relative in Canada.
Without any established connection to Canada it will be very difficult to prove that the disabled brother needs to be in Canada. He has been cared for by the family for decades out of Canada. Has the family been able to secure a TRV? Can the family support themselves without an income for a few years?