首先我不知道你在哪里,所以你要清楚联邦和州法律覆盖不一样。
联邦法律禁止你歧视残疾人,包括残疾人需要的service animal。身体有病的人(physical illness),算是暂时残疾,只要医生证明有physical illness需要service animal,你就不能拒绝。
很多人说他们要emotional support animal。这个不是physical illness,联邦法律不保护。但是,你的州法可能对emotional support animal有规定。我把概念讲清楚,你自己去研究。
Review
1. Does the doctor's note specify a physical illness that requires the animal?
If Yes, you have to allow. You probably cannot even charge pet fees. The End.你自认倒霉,人家已经住进去了。
If No. see 2
2. Does the doctor's note saying it's "emotional support" need?
If No, tell her to follow the lease, no pet.
If it's for emotional support, see #3
3. Does your state law have regulation on emotional support animal in landlord/tenant law?
Do your research and follow the state law.