Yes, it takes a while. I'm told that it usually takes 6 months, but it could happen in 4. So it's a safe enough bet to assume that it will take between 4 and 6 months.
If your family is coming in on a Business Visa in the meanwhile, that will be valid for 3 months. Hence, they have to exit Qatar before the end of 3 months, and re-enter on a new Business Visa.
As far as I know, an individual can have 3 Business Visas per year.
Tinkerbell's explained the rest clearly enough, I think.
Yes, it takes a while. I'm told that it usually takes 6 months, but it could happen in 4. So it's a safe enough bet to assume that it will take between 4 and 6 months.
If your family is coming in on a Business Visa in the meanwhile, that will be valid for 3 months. Hence, they have to exit Qatar before the end of 3 months, and re-enter on a new Business Visa.
As far as I know, an individual can have 3 Business Visas per year.
Tinkerbell's explained the rest clearly enough, I think.