you just ask the green card holder if you can borrow his.
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yes, eventually with all the proper procedures in place.
no
?
yes he will
Yes, regardless of the alien's status. He can adjust his status and apply for citizenship once he or she marries a U.S. citizen.
No.
No. Your second marriage is not legal. In fact, in the United States a married person who knowingly marries again while still married to their first spouse commits bigamy. You need to obtain a legal divorce to dissolve your first marriage.
The resident would need to wait until becoming a US citizen until filing for residency for the illegal alien spouse.
Yes, i believe you can good sir.
Certificate of Authority
They will be just married to the card holder; that will not help the illegal in any way, and could have a bearing on whether the card holder can get citizenship (assisting a person they know to be committing a crime, for example).