US Immigration from Dominican Republic

My friend's husband has been working for the last 8 months in another country, using a temporary visa he has been diligent about renewing during this time. He is concerned about knowing if he were to take a residential visa there will affect his application for his US residential visa?

This questions is for a friend who is taking care of her grand son in Dom. Rep because the mother of the boy enter to usa with a sb1 after be out of usa for 3 years.

Here is the history: the mother of the boy was in Dom Rep for around 3 years, during that time she had a baby, then applied for a sb1 at the consulate, she left the baby behind with the promise of petition him. The thing is that it is now 4 years and she has not petition the boy and has no came back to see the baby. Her excuse for no go back is that she can not leave to usa, she said she had been ban and can not leave usa.

The grand mother wants that she go back and take care of the boy.

Is that true that if you arrive with a sb1 you can not leave usa for so many years?

I just got approved on march 9, I will like to know if the waiting time depends on what embassy process my case . For example mine will be New Hampshire. ???

Any comments about your expedite requests experiences appreciated here!

I have submitted numerous expedite requests. About (6) so far. The last two have been send and responded with an answer on the same day. They have came back the same day advising they sent my case to consulate and my case cannot be expedited.

Are these automated messages? How can they possibly send my case to consulate and determine it cannot be expedited on the same exact date I send the request?

Recently my husband's birth certificate was rejected. I realize the scan looked more like a copy than an original. I don't know if that's the only issue or if they want the "long" version instead. We submitted the "short version." Can someone who has had their documents accepted by NVC please weigh in, did you submit the long or short version and what was the result??