He will likely have difficulty obtaining a visa because he overstayed. Consular officials typically will not issue someone a visa when he/she previously overstayed. They suspect the person has immigrant intent, which this person likely does given the amount of time spent in the United States as well as other factors such as lack of ties to his native country. You can read more about visitor visas at http://myattorneyusa.com/travel-visas.
Answered on May 06th, 2016 at 4:06 AM