Go to the local INS office and explain and fill in the paperwork. It is easier than doing online.
Not unless they themselves are registered in court as an American citizen.
Yes they retain citizenship.
No.
Yes they can apply - there will be tough questions though.
I believe that you're guaranteed a citizenship when you marry a citizen, but being an illegal complicates the matter.
Your status is "married." You are still a citizen of this country. There is no special status.
It is legal in the United States for an illegal immigrant to marry a US citizen. Once the marriage is legal, the illegal immigrant becomes a legal immigrant and can stay in the US for the course of the marriage.
Yes, you can.
Being married would not change the fact she is an illegal alien. She could still be sent back to her country of origin.
No he cannot
=An immigrant is NOT an alien.==The immigrant would still be legal because they were married to a US citizen.=
It's not illegal.