The issue will have to be rectified before the person can continue with the citizenship process. The possibility of deportation would not be likely nor would being incarcerated unless there is a court order in place mandating the payment of child support. If there is such an order the person will be considered in contempt of court and could be taken into custody and/or other legal remedies such as wage garnishment or seizure of bank account(s). It is possible the judge would give him or her time pay the arrearages and place the person on probation with the stipulation that any failure to comply to the order will result in being jailed.
Yes
When applying for U.S. Citizenship through naturalization, United States Citizenship and Immigration Service (USCIS) does require a Citizenship test to be taken by all applicants. The Citizenship test will be based on the ability of reading, writing and speaking English, knowledge of American history and the government of the United States. After you have filed the US Citizenship Application (form N-400), USCIS will notify you with a date and time for your fingerprinting appointment. The applicant will be advised to appear at the local Application Support Center at the designated time and date. At this interview the applicant will be given the Citizenship test. You will be notified in the mail the results of your test.
An illegal alien would not be taken to court to be sued for child support because he would have no documentation. If he was taken, he would probably be held and perhaps deported.
No.
Welfare
If he was deported back to a country that has an agreement with the US there is no problem, just contact your State's child support agency. If it's a country the US do not have an agreement with you have to apply in his country.
Either scenario is possible.
All you need to do is, petition the court to modify your child support order.
no you cant get deportes cause your a live here and you are a citizen
Individuals do not decide whether or not a non citizen qualifies to be deported. Such concerns should be addressed to the Immigration Customs Enforcement agency. (ICE).
Yes, marriage will most likely stop your boyfriend from getting deported. This is why most illegal aliens find American's to marry.
As a citizen, you should vote and support your country. There is little else you can do