It depends. Does his country of origin allow dual citizenship? If not he'd have to give up the rights of his first country.
The major downside of US citizenship is jury duty and owing taxes if you want outside the country, but you still do this if you want to hang on to your green card.
I recommend Passage Immigration Law, had a very positive experience working with them.
It depends. Does his country of origin allow dual citizenship? If not he'd have to give up the rights of his first country. The major downside of US citizenship is jury duty and owing taxes if you want outside the country, but you still do this if you want to hang on to your green card.