So did i get these four rules/laws right. Is this what a person to person sale entails? Is there anything else? Do you have to give a receipt?
What rules regarding face-to face transfers specifically apply everywhere?
It's really state-dependent. When I lived in California, handgun (and maybe long gun?)transfers except transfers between family members had to go through a dealer.
The same state resident transfer rule is federal, so that applies everywhere.
I don't know the state-by-state requirements specificially for the other rules you mentioned, but I believe almost anywhere you will run afowl of the law if you transfer a gun to anybody who you should have know was not allowed to buy it from you. Certainly if he says, "good thing I don't have to do a backgound check, cuz I'd never pass one of those" you are setting yourself up for a problem.
Remeber that there are laws that you can be arrested and tried for as a criminal, AND you can be sued in civil court by anybody who thinks you did something wrong and hurt them in some way.
If somebody buys a gun from you and does something stupid with it, and, say, he was a felon or psychotic or under a restraining order, it would probably be hard to prosecute you for breaking a law unless he told you all of that stuff. On the other hand, you might have to lawyer up to fight a civil suit against whoever he hurt.
Would you rather fight that case with "I don't know who he was, he paid cash in the parking lot and that's good enough for me." Or, "I met him at his house, he seemed like a very reasonable person, I asked specific questions about if he was allowed to own a gun, he showed me ID to prove that he was who he said he was, and here's the reciept we both signed. What else could I have done?"
In my case, I'd say, "Geez, I didn't know that guy from Adam, so we headed down to the gun shop and I had the guy there do the backgound check and fill out the transfer form. Here's a copy of the reciept." That also keeps me from having to worry about any state or federal laws because the deal is going through an FFL.
-J.