As long as your visa is in order (assuming you are from another country originally), you should still be able to. The law only prevents unlawful residents from obtaining handguns,...
It honestly depends. You could consider the Pokemon your first encounter, and catch another after the mandatory knockout or ignore it and catch something else when you can get some...
It depends because the bases with good defenses will have a high chance of getting rid of your goblins fast, while if it has poor defenses, it should be quite...