I have dog sat before but not to be paid, just to let the owner have some away time when needed. I have a chihuahua that I trained myself. She is very playful and loves dogs of any size. I would take your dog out as often as I would mine (so about once every two hours or so) and I would play with them! I am available all day if needed and I am very flexible with whatever works for you as the owner. I'm very gentle with animals big or small. Although I have a tiny dog, I love big dogs as well. I have a roommate that also loves dogs and would be here with me while I was watching your dog or dogs