So you would always want their permission to do so after your purchase. 

. $30K below market that I personally had under contract and my best client wanted it, so I went back to the seller and got permission to have my client replace me in the contract.

Have them collect anything they wish to keep, and get in writing permission for you to dispose (or do whatever) with anything they leave in the house after signing the agreement.

He gave us a written request for permission to make the changes to the toilet, and we are giving him our written permission, on the conditions that he is solely responsible for paying for the work, he uses our approved plumber, and the toilet stays when he leaves.

@MaTaylie Beganovic interesting and I’m guessing you do need permission to post a sign with a commercial intent.

Its the philly area, enough money in the "right" pockets and they could get permission to do anything, anyplace...

If you can't I would go talk to a lawyer because, technically, they signed you into a contract without your permission. 

Gives permission to terminate the contract within 10 days under the earnest money clause.

TRUST ME, the girlfriend will admit that he was living there and will likely even allow him back into the property against orders.But even if not, if he was residing there, with landlord permission or not, lease or not, he is a TENANT, or at the very least an authorized occupant, and as such cannot be prevented from entering his primary dwelling...not by the landlord.

New owner charges the tenant but the tenant claims the previous owner gave them permission.2.