If the owner lives in the house, you can give written notice to vacate, but then you have to wait 6 months before filing an ejectment lawsuit if you have a tax certificate.

Then you must wait 6 months before you can file an ejectment lawsuit to legally get them out.

Typically its a space issue in the kitchen, if 100% of the space is used, to get something new you have to eject something old.Hopefully the buyers understand the business and can due diligence this kind of stuff.Good Luck!

requiring full foreclosure to eject the defaulted buyer. in the meantime you have to pay your payment to the person you bought it from and you have to pay the foreclosure fee's and if they squat and dont move this can end up losing you big money very slowly..

When there is no lease you file an ejectment vs UD .

Is it just a gravity system or do you have ejection pumps? 

In PA, I was under contract to buy a house and the occupant was the former owner (had been bank owned for 9+ months) and ejectment (no lease) is much harder than eviction (with lease, not paying / breaking terms).

Depending on property value as well - Pittsburgh is this weird place where $30k and $300k properties might be sharing a wall in certain areas - ejecting someone from a property costs the same (money- and time-wise) regardless of property value.

Have you considered bringing an ejectment action in state Supreme Court?  

If the tax sale investor has not taken lawful possession, then the deed owner is allowed to take possession and keep it until dispossessed by an ejectment order from a court.If the investor files an ejectment lawsuit against the deed owner, the deed owner will be able to redeem but will also have to pay the legal fees.