Kicked out with baby! !

Our baby is 8 weeks old and we just got kicked out of our house. There was nothing we could do about it, it was not our fault. The only option we have is to move in with a friend. My worry is his house is very dirty. We are going to try to clean it as best as possible but he has four dogs and the grime is soaked into the floors. I'm so afraid my baby will get sick from these conditions. I'm going to get an air purifier to maybe help. Should I be this worried? Or is there anything I can do to make it better? Please help!