I lived in Baltimore in the mid 1990's. Following an attempted home invasion (during which I was warned not to shoot the intruders), I asked about getting a permit. I was stonewalled the entire way and finally had to ask a lawyer exactly where to get the paperwork.
I filed the forms, paid my money, showed need and qualification and waited. Four months later, I was told I was denied for lack of justification. My understanding is that they simply will not issue one to anyone without significant political connections.
If at all possible, try to get residence in PA.
In the depth of winter I finally learned that there was in me an invincible summer.