The eviction of tenants of a house to be purchased
I found a house I loved and am planning on buying it. The problem is, I found this house 2 months ago towards the beginning of July. While I was first looking at the house, the realtor told me the tenants were being evicted. I submitted an offer on the house, and it was accepted. 2 days after the offer was accepted, I was called and told that the tenants weren't being evicted now, and that their lease was still good until the end of September. 3 times since then my realtors called me and said the landlords were going to evict them, and then at the last second, decided not to. The last time this happened they did this, they had taken the tenants to court to evict them, but the tenants had come up with some money at the last second. So although these tenants let their dogs poop all over the floor in the basement and they don't take care of the house AT ALL, they still get to live there and damage the house for another month while I have to wait. And I was told by their landlord that I don't get their deposit money to fix the house either, and that he's going to need it to pay for his "court costs" and isn't going to even use it for the house. Is this fair?