Informed of Service Animal in Unit Shared by College student

[Matt Hendrickson]

Help!

I self manage a few properties, one of which is a house that I rent out to multiple college students by room. I just received this email from a tenant: 

"I just wanted to inform you that I got a service animal and that she’ll be joining me in the room."
 -Brandon

I know this is a hot topic/issue, but this is my first time encountering it. I realize FHA will require that I accommodate this request should he provide doctors note, etc. I'm worried, however, about allergies of other tenants as well as potential damage. What have you done about this issue? I appreciate any help!