I previously had a Bullmastiff and I can work really well with large dogs, but I also am good with smaller dogs. I am very into walking and playing with dogs because nowadays with everyone's busy schedule, they do not always get the exercise they need. I am available all day during the weekdays for most of the summer and upon request, I can go out running with the dog or I can play with them in my backyard. I can walk or allow the dog to play in my backyard or even go out to the park with them, depending on owner preference. I have been dog sitting/ walking for 5 years. They have all been larger dogs but I have boarded smaller dogs as well, with 0 problems coming about.