=An immigrant is NOT an alien.==The immigrant would still be legal because they were married to a US citizen.=
yes
He can be arrested as he is a illegal immigrant and he has got married before waiting for a year aftr getting divorced.
You go to immigration and start the paper work.
Send all the info you have to the INS: http://www.uscis.gov/portal/site/uscis
Not unless you are or become a naturalized citizen of that country.
Getting married to an American citizen.
Yes They Can
Check with US Immigration office.
No. You do not need a social security number to get married in California. But you MUST have some sort of identification document, such as your passport, etc., to identify yourself.
My brother married a girl from the Philippines in the Philippines. They were both previously divorced. She is a Philippine citizen. He is a US citizen. I do not know whether this will apply to your situation but it sounds similar. You might want to check with the British consulate there to be sure.
I believe that you're guaranteed a citizenship when you marry a citizen, but being an illegal complicates the matter.
yes