I agree with the other sitters that expectations and understanding should be discussed during the meet & greet.
My situation is unusual in that my life now revolves around dogs. I rarely leave home when I'm dog sitting and if I do, it's usually for a hour to walk another dog that is not staying in my home. Other than that, I usually plan my other commitments (groceries,etc) around the stays at my home.
Many people will have different expectations as to what it means to "treat their dog like family". For some of my clients that are either retired, work from home, or take their dog to work, the dog is used to being with one or more pet-parents nearly all the time. For other clients, who are away from their dog during long work days and social events, their dog is used to being alone more. Often this is the deciding factor, whether they prefer to have me care for (walk, play, feed, etc.) their dog at their home - often with multiple daily visits... or stay at my place.
I'd suggest discussing routines and preferences regarding the dog's preferred amount of human interaction with detailed information about walking, eating, play, and any applicable medical or other concerns, before the stay to ensure that everyone is satisfied with the arrangement.
Unfortunately the sitter I selected told me they were part time workers and my dog wouldn't be alone for more than 5 hours any given day. It turned out my dog was left home alone for more than 8 hours a day almost the entire week, she became sick and I won't go back to them , they mislead me.