Cover every aspect of dog's care, from walks, vet visits, and medication schedules. This page will guide you through the rules and requirements for traveling from the United States to Mexico with your pet.We have created this guide to help get you started with some of the most crucial items to include in your dog walking contract. Sign up clients for your dog walking business with this easy Service Contract package which contains 3 forms. Dog Walking Service exclusive Agreement, Dog Walking Service Agreement Virtual Assistant Services exclusive. A dog walking contract should outline the dog walker's major responsibilities and the process for carrying those out. Guest completing the booking must be 21 or older at the time of sailing.