A permanent resident cannot petition for his/her siblings. Only a United States citizen can file an immigrant visa petition on behalf of a sibling. The process currently takes ten to twelve years due to limited visa availability. Your brother should consider other options like immigration through employment or an employment-based nonimmigrant visa. You can read more about nonimmigrant visas at http://myattorneyusa.com/work-visas.
Answered on Jun 09th, 2016 at 1:51 PM