Not long ago while I was in a share house, my small maltese shih tzu found her new friend, a catty. They had a day or two for introductions and then I see them hanging out together and play whenever they can. My dog Victoria always liked dogs her size or smaller than her size so she can play with.
I always liked animals and I understand as an owner that we need someone trust worthy to treat our pets right when we are gone for holiday etc. You are welcome to examine the place I live in and let the animals meet in public grounds. I'll pay attention to your pet as well as mine to make sure they are all happy as well as some other requirement if needed.
I'm living in a unit with a small backyard too :)...