Yes, anyone can act as power of attorney.
Yes, as long as someone is willing to have you act in their presence (act as power of attorney).
Yes, the person choosing their agent can choose anyone they would like to act in their best interest.
Not likely. In many states it is necessary to go through the court to validate a POA and a convicted felon would not qualify; in other states it can be done with a simple affidavit that is signed by all parties and notarized. Even in states where only a notarized affidavit is required, it would likely be challenged once the court learned the grantee had a criminal conviction.
If the individual wishing to award them their POA wishes to do so, there is no legal barrier against it.
Probably not. If the only thing restored was voting rights, that doesn't include the right to own a gun. You should probably check with your attorney.
If it is a state charge, it is possible- start by contacting an Arizona attorney. For a Federal charge- no.
check with an Attorney
power of attorney.
You need to consult with a lawyer familiar with firearms law.
Yes, but it depends on the nature of the felony and how long ago it was committed.
Yes! Her son is a convicted, institualized felon