no
yes you do need a license to be legally married in Arizona
An illegal resident can not legally get married in the US. In order to obtain an Marriage License, you must be able to prove that you are either a US citizen or here legally.
just a citizen of u.s.a
No, it is not true that they will be able to get a license and a permit. Marriage does not change one's illegal immigration status and they can be deported.
yep
You can marry pretty much anybody you want to - that's not going to make them a citizen however.
Its illegal
No state requires citizenship for obtaining a marriage license. The US citizen presents his US ID to the clerk. The non-US citizen presents his foreign passport. You pay the fee and they issue you the license.
Citizenship does not affect marriage. If the license application was filled out truthfully, it is a legal marriage.
You have to get married in the same state in which you obtained your marriage license. But you can apply for an Arizona marriage license if that is the state in which you have decided to get married. Just because you got a marriage license in one state doesn't mean you can't change your mind and apply to get married in a different state. But when you do get married, you have to have a marriage license in the state in which you get married. The marriage license is not recorded as a "done deal" until after the wedding, so it shouldn't be a problem.
Status of immigration is normally not a factor. You simply apply for the license at the court house.
I am not a lawyer, and as such I am not entitled to give legal counsel, but if the marriage can be proven to be a sham, it can be dissolved and the alien can be deported. This is fairly rare, has happened in few cases, but the other party in such can be held liable for fraud.