Dog walker available - large breeds OK - (Sherrills Ford, NC)

I am a devoted dog lover and cannot be without one. I have always had large dogs but had to 'switch' once my last dog died - I now have a small lap-type dog, due to the more expensive costs of owning a large breed. I am physically fit, and currently walk 3 mis a day. If your larger dog is walkable on a leash (has experienced being leashed) there would be no issues.