Look at question 4 though.
If it’s a service animal OP is getting, then the landlord cannot legally exclude it. However, therapy animals are specifically not service animals and are not covered by the ADA
Q3. Are emotional support, therapy, comfort, or companion animals considered service animals under the ADA?
A. No. These terms are used to describe animals that provide comfort just by being with a person. Because they have not been trained to perform a specific job or task, they do not qualify as service animals under the ADA. However, some State or local governments have laws that allow people to take emotional support animals into public places. You may check with your State and local government agencies to find out about these laws.
I understand. Maybe see if your insurance can help connect you to resources that can help you navigate this situation. You can’t be the only person who’s landlord said no.