What should be included in a dog walking contract? Some dog walker training programs will also provide sample contracts.We have created this guide to help get you started with some of the most crucial items to include in your dog walking contract. Where can I get an example contract? There are many great example contracts available for professional pet sitters and dog walkers. In addition, you will need to obtain general liability insurance to protect you against injury to your clients' pets or damage to other people or property. Contractor shall complete the following general requirements before beginning work: Complete Form W-9. Provide Dog Adventures Northwest a copy of car insurance.