If you're in the dog walking business, you need to keep track of all the laws and rules that every small business needs to know. A dog walking contract should outline the dog walker's major responsibilities and the process for carrying those out.You may legally operate a pet sitting business in Clark County with the correct approvals. Resources to help you create a standard service agreement, create a cancellation policy, and establish operating procedures for your dog walking business. Please take a few minutes to fill out a brief survey, available in English and Spanish. Dog walking requires a volunteer to be 21 years or older. Dogs in heat or puppies under 4 months old are prohibited. Don't let your dog dig holes, fill any holes mistakenly dug. These statutes comprise Nevada's dog laws. In general, dogs must be kept on leashes in Nevada whenever they are out in public.