IMO, this post is not complete without the links (or text) of the Pa. law...
1) Possession
18Pa.C.S.§6105(b) and (c)
is a list of enumerated offenses (b) and other disqualifying criteria (c) that would prohibit you from ownership/possession in Pa.
2) License to Carry Firearms (LTCF)
18Pa.C.S.§6109(e)
lists the prohibiting criteria for LTCF issuance. Notice that as part of the list it refers to and uses the same enumerated offenses as possession, 18Pa.C.S.5105(b)&(c), as well as some other more narrowly defined and open to sheriff interpretation items (such as habitual drunkard).