A dog walking contract should outline the dog walker's major responsibilities and the process for carrying those out. We have created this guide to help get you started with some of the most crucial items to include in your dog walking contract.It's advisable to conduct research and verify if your petsitting services are subject to any potential sales tax implications in Texas. Some dog walker training programs will also provide sample contracts. I am starting a small dog walking business. I'm getting bonded and insured. You DO NOT need to "open a business" to legally sell your services as a pet sitter. Cover every aspect of dog's care, from walks, vet visits, and medication schedules. Each state requires its own form of a pet sitting surety bond. It's also a good idea to consider drawing up a service agreement with your clients to set expectations for services in case anything goes wrong.