Your asking about committing fraud in the application which is a crime. CIC/IRCC has many many ways of finding out. We aren't going to help you commit fraud.for Manitoba option , I can operate my business there and get property and all utility bills under my name ,
How would CIC know I am staying in Toronto or Manitoba ?
How do they check ?
If you go down this path, assume you'll be caught and there will be a finding of misrepresentation. This will result in the application being refused and your brother being banned from Canada for 5 years.
Either physically move to Manitoba or forget this route.