Answer: If he gets up to 3 felony he will be deported.
Yes and it most likely will get him deported if it was a felony
Can they be deported? Sure, but probably not just for a misdemeanor, but if the person shows a trend towards accumulating misdemeanors, and/or if a falony is committed following misdemeanors, I don't think they would hesitate to seek a deportation order.
If you're in the US on a green card, and convicted of a felony, you'll be deported.
Yes, it could potentially be done.
Individuals have no say in whether a non-citizen in the United States should be deported such decisions are made by the USCIS. Unless the person who has been granted permanent resident status commits a federal or state crime which constitutes a felony conviction he or she is not in danger of deportation.
Yes to both questions. A felony offense is among the most serious of crimes.
No. If you come back after being deported, but the green card isn't expired yet, you will, again, be deported (which will not look good on your part being deported twice).
NO.
Deported
If you are in the US with a green card and you get into trouble by fighting or anything else, they can retract your green card. If that happens, you will be deported back to your original country.
If you were deported for criminal activity, there is no way you will be readmitted to the U.S. with a green card. I don't know about the possibilities if you marry.
No, the divorce alone is not a reason for deportation.