Can I kick out my tenant? Look inside!!

[Mark Redmann]

Ok folks, so heres whats going on here. My parents have a SFR house in Philadelphia.

• Tenant on month to month lease (year lease ran out)
• management company in place with written notice of discontinuing their services, done on march 26)
• Parents would like to sell property
• Tenant not cooperating
• rejected 5 of 6 showings for this weekend 
• Tenant is a slob, house is very cluttered with moving boxes still laying about!

So basically what I want to see (and what my parents want to do) is to give the tenant 30 days notice to vacate so they can clean, repaint, and fix some things.  Is this allowed, legal, or ok to do in Philly?  Does this guy have any rights other than whats stated in the lease?  

He promised to clean and cooperate with the selling of the house.  Not the case so far.  I tried to sell the house last year on a saturday at noon.  I basically WOKE HIM UP when I was banging on the door

Please advise!!