It means you missed filling in an area on the I-130. You now have to submit an I-824 to move the case to NVC. Otherwise, it will remain at USCIS. This will cause a significant delay.
Notice date and received dates are different, but the difference means very little. It isn't worth worrying about it. Just sit back, stay busy, and know that each day is a little closer to the next milestone in this long process.
1. You have to wait until the case has been created at NVC. Until then, there will be no DOS case number assigned.
2. After the case is at NVC, you must contact the NVC and new consulate and ask for the change.
Sounds like they will have a ban if they leave the US. Overstay > 6 months = 3 year ban. If they overstay for a year, then the ban will increase to 10 years.
If you didn't withdraw the I-864 before Adjustment of Status was approved, you are stuck. Now, it is in your best interest that he becomes a citizen as soon as possible. Divorce, let go, and seek happiness for yourself.
There MIGHT be a waiver available. If there is no waiver available for your offense, I see no recourse, except to live outside the US.
This 212(h) immigrant waiver is only available if the violation relates to a single offense of simple possession of marijuana in the amount of 30 grams or less.
Why would it be treated differently? Hawaii is part of the United States. It is no different from Colorado or New Mexico....or any other state in the Union....
The reason you are going to the US is not important. Convincing CBP that you will return after your visit IS VERY IMPORTANT. Short, infrequent visits are fine, but you need to be prepared to show ties to your country. Otherwise, don't be surprised if you are denied entry.