We accept cash, credit, check at any time of the month, for any period of time.  

You don't have a grace period in that lease and I don't believe PA requires a grace period.

UPDATE: Connected with an RE attorney friend and he said Sub2 is not a thing anymore in DE.

Here's an overview of the periods they should consider:Monthly Leases - 15 days of notice.Leases That Last a Year or Less - 15 days of notice.Leases Without a Specified Period - 15 days of notice.Leases That Last Over a Year - 30 days of notice.If you've met the requirement of giving notice, then you can legally require them to leave by a specific date/time and change the locks the second they are out.

Great tools that get updated regularly.I am on the lending side of things and would be happy to hop on a call with you anytime to discuss financial strategies and help answer any questions you may have about nearly any loan product available to help you on your journey, even if they are not products my capital partners offer.

Almost all contracts have a due diligence period, are subject to financing, subject to inspection report, and anything else the buyer or his attorney can throw in.  

Distressed homes are hard to find, and I am learning that I don't have the fortitude to withstand the rehab process.My goal continues to be finding residential and commercial (office/conference space) property for rental purposes over a one- to five-year period.

I would wait until expiration and then sign the new updated version.

Maybe I do 2 months, and then have the 3rd month broken up over a period of time. 

I'm looking to see what others ask in terms of programs the tenant is on, details of voucher, waiting/inspection periods or any other pertinent questions?