Siblings ... it took more than 10 years for my wife to get two of her siblings here and she was a citizen at the time of application. It took 5 years for the application to be processed and approved and another 5 years to wait for an “available” immigration number based on yearly quotas.
My wife’s family took fifteen years for all to be naturalized, despite the fact that they are political refugees (from Cuba).
My father-in-law still won’t talk about the bribes he had to pay on both sides of the border.