Tenant with 4 service dogs

[Beshoy Farah]

I have a SFH that is 929 Sqft, 2 beds, 2 baths. I got a tenant with 4 service dogs, I know that by law they're not considered pets but isn't 4 dogs too many for just 2 people

Any suggestions what should I do? What I need to get from them as proof or what would you do if you were in my shoes?

Thanks a lot!