Our huge deck has potty pads on them but also has stairs to a lower area which is fenced for them to potty on if they prefer. My small Yorkies do great with dogs when they are in our house but they are annoying (being honest) when we walk or are leashed thinking they are 5 ft tall. We do have lots of space so separating animals is not an issue at all. We have a HUGE basement that is finished and has colored concrete flooring throughout. Our home is very dog friendly. In my client's home you tell me what your babies are accustomed to and I will follow your rules. In my experience I feed your babies twice a day and walk twice a day if needed and play with them while I am in your home before I leave.