None. FEDERAL law prohibits it.
Depends on whether it's a misdemeanor or felony charge. If it's a felony charge, the answer is going to be no. If it's related to a domestic violence matter, the answer will also be no, whether it's a misdemeanor or felony charge.
Will depend on convictions, not charges. If the assault was a conviction of a charge of violence against a domestic partner, you may not buy or possess a firearm anywhere in the US. Period. This is covered under Federal law, not state.
Depends on the misdemeanor, and whether you were convicted or not.
You may purchase a gun regardless of whether a misdemeanor was a expunged or not. That is unless the Misdemeanor was for domestic violence. Anything Domestic Violence bars you from purchasing a firearm.
It doesn't matter what state you're in, the answer is going to be no. Under the Latenburg Amendment - which is a matter of federal law, and applicable to all states and territories of the US - you may not purchase, possess, or be allowed access to firearms if you've been convicted of any domestic violence offense, to include misdemeanor offenses.
It depends on the misdemeanor.
Depends on the misdemeanor. While most are NOT a disqualifier, a misdeameanor conviction for domestic violence or for illegal drug use CAN be a disqualifier.
You need a lawyer for a correct answer.
This is a matter of federal law, not state law. Most misdemeanors won't disqualify you from owning a firearm, but some will. For example, any domestic violence conviction, even if only a misdemeanor, will disqualify you. We'd need to know specifically what the misdemeanor was in order to give an absolute answer.
In Georgia, you cannot purchase a gun if you have been convicted of a misdemeanor crime of domestic violence within the past 5 years. Other types of misdemeanors within the past 5 years should not automatically disqualify you from buying a gun, but the background check performed by the licensed firearms dealer may still impact your eligibility.
Depends specifically on what the misdemeanor is. Most will not prohibit you from owning or purchasing a firearm. Some will. For example, any domestic violence conviction will do it.
Assuming you mean "can a person with a misdemeanor own a handgun," it depends on what the charge is. If the charge is for stalking or domestic violence, no. Most other misdemeanors do not disqualify a person.