Question about eviction process with expired lease ?

[Kenneth Burke]

One of my SFR's had tenants living with an expired lease, mother and son. The lease expired August 31, 2019, the lease does not state that it automatically renews upon expiration. This was my first property and the tenants have been there for the last 4 years with no issues. When I didn't receive the rent for April I reached out to the mother who had been my only contact, she notified me that she moved out and it's just her son staying at the house.  I contacted the son who gave me the run around for a while and was not staying in contact with me. I told him I needed to get him into a current lease, to which there was no response. I served a 10 day notice to quit and immediately started getting complaints from the son about issues that have allegedly been neglected at the house. He made threats about falling and said there was mold. I am in the process of making any repairs and I am waiting to file the landlord tenant complaint until the courts open up in June. My question is can I name the mother in the eviction complaint as well as the son ? The house is located in Albrightsville, PA. I contacted the local District Magistrates office and they said I should just put her on, it's easier to take someone off then add them, but the person I spoke to didn't seem too knowledgeable. They told me the lease automatically goes month to month after expiration, but I'm reading things online that say otherwise. Any guidance in this matter would be greatly appreciated.