Probably one year

This is based on what I read from the forum.

Could you tell me how you filled I-824? Part 3 is for "additonal information". It requires information about the principle beneficiary of the original petition or application. I think the petition is I-485 in this case. And you, not your wife are the principal beneficiary of I-485 approval. I don't see any place in the form that wife's information can be filled. So how did INS relate your 485 approval to your wife's follow-to-join case?

Thanks in advance.