A: If they had her file a Form I 407 and turn in her green card, she will have to reapply for her LPR status. Even if they did not take the card, it is very likely that she may be in the system as having abandoned her status, which would mean she has to reapply. An experience immigration lawyer will be able to review her case in more detail and discuss a strategy with you.
A: When you submit your affidavit of support it will ask for the past 3 years of your income. You will need to submit evidence showing that this year you are earning significantly more despite only having earned $8,000.00 on your prior return. A qualified immigration lawyer can assist you in this process.