No
No.
No
No
No. There is no state were a felon may own any firearm.
can a convicted felon's wife own a firearm that is not in his home
No.
Yes.
Nowhere in the US
You'd be hard-pressed to find a felon in the military
There are some grey areas here. YOU still have a right to own a firearm. However, it must be done in a manner in which your girlfriend cannot have access to the firearm or ammunition, as a felon is prohibited from purchasing, possessing, or being allowed access to firearms or ammunition. If you're living together and there's a firearm in the residence, that can be considered allowing a felon access to firearms, even if it is in a gun safe.
A felon cannot own or possess a firearm anywhere in the U.S. unless the felons rights have been restored.