Lease expired - tenants refuse to move out

[Bret Davis]

Hi all,

Got a sticky situation in PA that I haven't had to deal with before.  I tried searching for answers, but there are conflicting posts so here goes.  I have a tenant in one of my rentals under a 1 year lease (4/1/2018-3/31/2019).  They are now refusing to leave and said as much in a text message 2 days ago.  They said they can't find a landlord to rent to them and can't move.  It's no surprise as getting payments from them is a headache and a half - we've filled an eviction claim in court 3 times during their year lease.  Back in Feb 2019, we posted a lease termination notice on the door indicating the lease won't be renewed and they need to leave the property by 3/31/2019.  My question is do I still need to post/send another notice to quit or was that requirement satisfied by the letter we gave them back in Feb?  Some posts say a notice to quit is needed, other posts say the original letter is all that is necessary.  Any info would be appreciated.