Perhaps, if there are no other issues...

Strange idea to emigrate with such a partner. Wouldn't want to move to another country with no one to rely on but a person I'm afraid of...

That's the case not only in America. Immigration without enough money is almost impossible. It doesn't matter where you want to go.

Don't see any sense in that fight. Won't help anyone

Perhaps they got confused by the familyname and thought, she was your wife and not your sister? You should hurry to figure out what the problem is. Hope someone here can help you so that this problem won't prevent your sister from receiving her resident card. good luck to you! [Moderator edit: No ...