Nevada Pet Addendum Template. Use our Pet Addendum to let a tenant know the specific rules for having a pet on your property.See the most common pet addendum examples to include in a rental lease agreement. 5) Tenants agree to clean up after their pet and to dispose of their pet's waste properly and quickly. Download a pet addendum to a lease template to allow a tenant to have a pet in a rental property and establish the rules they must follow. A pet addendum gives permission to allow the tenant to have pets on the rental property. It requires the tenant will be responsible for their pet(s). Here's a sample Pet Agreement for renters with guidelines for requirements, responsibilities and how to manage issues. Reviewing Your Lease Agreement. Before taking any action, carefully review your lease agreement for any pet-related clauses.