Legality of renting 1 br apartment to single mom with 2 kids - PA

[Matthew Conner]

Hi,

I'm in a new situation to me. I have a 1 bedroom apartment in Pennsylvania I'm renting out and a potential applicant that is a single mom with 2 kids under 2. Qualifications aside, is it legal to rent to her? I know most places have policies that limit occupancy to 2 "heartbeats" per bedroom. As far as i can tell i cant find a law preventing this, just that most organizations have a 2 per bedroom policy.  Thanks in advance.