You're referring to a matter of federal law here - if one is convicted of a felony in any part of the US, they may not purchase, possess, nor have access to firearms, period. Doesn't matter if they're in a state other than where their conviction occurred, or even if they were to move to an unincorporated territory of the US (e.g., American Samoa, US Virgin Islands, Marianas Islands, etc.) - the law applies across the whole of the US, and state law cannot contradict that.
No
No. There is no state were a felon may own any firearm.
no felon can own or purchase a gun
ask your state Attorny General
Yes. The felon cannot have access to the gun.
yes, but the felon may not have access to the gun.
Yes, they do not do a background chek when you order one.
No
It depends on what you mean, but in the U.S. a felon cannot legally own or possess a gun.
Not legally. In the U.S. a felon cannot own or possess a gun.
Yes, a convicted felon can own and airsoft gun and/or a BB gun. It is a real gun that convicted felons cannot own, in which this would be illegal.
If you mean "own" a gun, no. Felons cannot own or possess guns.
The general answer is yes, the spouse of a felon can owna gun as long as the felon has no access to it.