If a tenant wishes to have a pet in a rental property, they should request and sign a Pet Addendum with the landlord before bringing the pet onto the premises. See the most common pet addendum examples to include in a rental lease agreement.Here's a sample Pet Agreement for renters with guidelines for requirements, responsibilities and how to manage issues. A one time Pet Fee and monthly Pet Rent, are non refundable. A Pet Deposit IS refundable. Landlords have the right to include provisions related to pet ownership, such as breed restrictions, weight limits, or additional pet deposits. 5) Tenants agree to clean up after their pet and to dispose of their pet's waste properly and quickly. 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). A pet addendum is a legal document that outlines a landlord's terms and conditions on having pets, ESA, and service animals on the property.