@JF-JR Once you file the IR2 and he enters the US, he becomes a permanent resident. As to paying the fee to the acquire a green card, I’m not too sure about it. Even if he requires a green card, that shouldn’t take more than 90 days to receive. You can get him a passport but the risk is that, if in the future, you are not around, he may have problems renewing the passport because he wouldn’t have anything to prove his citizenship.