If it is an un-desputed divorce and he is willing to sign, just send the papers and have him sign before a magistrate or other who can verify the signature, then he should be able to just send the papers back. There should be no need to travel to the UK, unless you would like to visit.
There are many ways one can get a California idea. One can get a California ID by being a citizen of the state of California and visiting a DMV location in California.
You
obviously not
passport
US citizens planning a vacation in England need a passport to take a flight to England. Generally speaking, perhaps another form of ID would help.
A Nigerian citizen, or any citizen for the matter, can travel any place (for the most part) as long as they have the proper paperwork and a way of getting there.
Only if you are a US citizen.
Yes, you can go down to the courthouse and file the correct paperwork.
No, but the Russian may be able to get a green card but might be required to go back home during the paperwork phase.
Call immigration or look online. There is a way to do it, but you may have to get married and your French husband may have to return to France until all the paperwork goes through. That could take time.
California is an American State. So, naturally, anyone born in the state becomes an American citizen.
Once a person from another nation marries a Canadian citizen, he or she becomes a permanent resident. The process takes approximately 50 days for the paperwork.