For dog owners who prefer in home, overnight care, what actually makes you feel comfortable with a sitter in your home?

Dog owners, I want your honest take on overnight sitters. I have been pet sitting in people’s homes for some years now. I bond really well with animals, and I also understand how vulnerable it can feel to leave your dog behind with someone you do not fully know yet. I know boarding works for some families, but I also know not every dog does well with that setup. Some dogs do best staying home with their normal routine and one consistent person.

I want to hear from dog owners so I can be better at what I do. What makes you feel safe with an overnight sitter? What are your dealbreakers? What are your green flags? If you have ever done overnight, in home care before, what made it a great experience, or what made it a bad one?