The act of deportation pertains to those persons who are not US citizens. If an individual who is not a US citizen is convicted of a felony crime he or she serves the imposed sentence, their residence status is revoked and they are deported to their country of origin.
Through Canada
They will be afforded an opportunity to plead their deportation order. The fact that they are a convicted felon does not count in the plus column for them.
No, not legally. If a felon is deported, then he has no right to return to the US. He will usually be put in immigration lockup for a long period (during which he has pretty much zero rights) and then deported again. He might have to serve the entire length of his original charge as well as face new charges.
NO
Obviously, you are responsible until he returns (if ever) from Mexico.
No. The deportation order is forever. You could have a lawyer in the US petition the court to change your status. Don't bet on it.
Yes to both questions. A felony offense is among the most serious of crimes.
If you're in the US on a green card, and convicted of a felony, you'll be deported.
You can always ask for a pardon. Your odds might not look at that great, but all you have to do to ask a pardon is to write a letter.
deported
In the US, you may apply for and be issued a passport. THE question becomes - will the country you wish to travel to allow you to enter with that kind of record.
Sure they can marry, but no felon from a foreign country can gain legal entry into the United States, much less legal status. They are persona non grata.