Yes. A same-sex registered partnership is treated the same as a legal marriage in Germany with respect to Immigration law. The same-sex partner of a German citizen can obtain legal residency and, ultimately, citizenship in Germany.
Check with US Immigration office.
it is illegal
There are not grounds for filing a civil suit in such a situation. In addition, a foreign national whether illegal or not does become a citizen by marrying an American citizen, nor are they guaranteed permanent resident status. United States Citizenship and Immigration Services, http://www.uscis.gov
no
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.
no
no
Yes they should be able to marry. Marriage laws don't generally care about immigration status or misdemeanor crimes. However, the marriage may or may not grant citizenship rights, there's no guarantee of that.
Yes, if his status is brought to the attention of the immigration authorities.
Yes the illegal would be deported and the U.S. citizen who entered into this fraud marriage fined and possibly jailed.
If you marry an illegal immigrate, he or she will automatically become a citizen of the nation you reside in. This, of course, depends on if you are a birth or naturalized citizen of your respective country. If you are only a resident alien, both of you will have to apply for citizenship status in the country.
NONE. Marriage to a US citizen does not in any way automatically confer any change in immigration status. Your US Citizen spouse can now petition to have your immigration status changed, but you will almost certainly have to leave the country and return to your home country to pick up the new visa, and, depending on the case, you may NOT be allowed to return to the US for up to 10 years.