With the surge of return to work policies cropping up through out the US, we have received an uptick of landlord inquiries about pets and animals in leased spaces. While it is a landlord's prerogative to prohibit pets in their leases, not all animals are pets. In this article, we discuss the process for distinguishing pets from assistive animals (as defined below) and provide an in-depth guide for landlords on addressing the presence of assistive animals in leased spaces.