I do carry Pet sitting liability insurance of my own. Rover also has insurance.I have a large dog door and I go out with the dogs if they don’t know how to use it . I keep the dog door closed for small dogs, for medium or larger. I just leave it open. It’s always closed at night.I take them outside frequently when home. if I have to go away for an extended period in the day up to five hours. They should be able to be OK in the house or be use to crate. I do crate them if it’s OK with the owner I have a large dog crate .If they are good dogs I can just leave them in the house. After I am with them a few days I usually know if they will be ok outside kennel. The goal is the safety of your pet and I want thrm to be happy so a lot of times it depends on the dog and what the owner wants. We can go for walk or to dog park or hike at mountain preserve on walks I stay away from other dogs. If They can sleep on the bed with me or in their own bed.I am not gone long usually.The gates to my yard all have locks on them. The front door goes to a gated side yard. So if the dog got out the front door, he would still be safe.Small dogs I am always with them when they are in back yard. I do not watch aggressive breeds. Will not watch pit bulls , or pit mixes. I can do a mellow large dog. It would be determined on meet and greet.Would like you to be honest about the dog’s disposition and any problems it has. I can watch two dogs in a household or if it’s agreeable, I can watch one dog from one household and one dog from another household if they both agree to it and the dogs get along well with other dogs. But usually I watch one dog at a time.