Also consider that many people are allergic to dogs or cats, and that may lead to negative experiences in the future. it also depends if you just have a rustic wooden cabin versus something with wall-to-wall carpets and fabric furniture.

A lot of people are sensitive or allergic to scents or perfumes, so you are going to have unhappy customers. 

If someone in the group home is allergic to animals, the request for an emotional support animal may not be a reasonable accommodation since it would negatively affect the health of someone else.

I’m extremely allergic, so it was a good test.

I do not outline profit and overhead unless it's a commercial job because I agree...people are allergic to me making a profit. 

An allergic reaction severe enough to cause a facial rash is the very definition of a health hazard. 

For example, what if you are allergic to dogs? 

She has always had issues during cedar fever season and now is going to be tested this week to find out which other allergens are causing her current severe allergic reactions. 

If I was going to double down it would be on the tenant that has been there 3 years, has an immaculate apartment, allergic to pets and smoke, has a 10 year history at the same company, volunteers in the neighborhood and has never missed a payment.

Second and most important, I'm severely allergic to cats and since I'm the owner/operator it could pose serious health risks.If you end up renting to the Beagle people, you need to charge a ~$250 pet fee and an additional $20/25 pet rent per month.