Support/Assistance Animals question

[Thor Camargo]

I was renting to tenants earlier this year. This was at the home that I own and live in - it has 2 levels and I set it up so that the downstairs area has private access/entry and also has a fridge kitchenette area.

The tenants at one point brought in a dog without any warning and I found out well after the fact. They claimed they could do this because the dog was a support/service animal.

I found the section below here:https://www.humanesociety.org/... 

Since I don't use a broker to rent my home, and it's my home they're living in, am I correct that they are not protected to keep the animal based on both 1 and 2 exceptions noted below?

Housing covered by the Fair Housing Act

All types of housing, including public housing, are covered by the FHA except: 1. Rental dwellings of four or less units, where one unit is occupied by the owner; 2. Single family homes sold or rented by the owner without the use of a broker; 3. Housing owned by private clubs or religious organizations that restrict occupancy in housing units to their members.

Second item covering their protections: the law states that the landlord needs to make "reasonable accommodations".

I already own 2 small dogs, which puts me at the limit for animals allowed under my HOA. Their dog would have exceeded this limit. Would that have crossed the barrier of "reasonable accommodation"?

Additionally - their animal was much larger than any of ours. If I had a high PTSD disability rating from prior military service, would this also have crossed the barrier of "reasonable accommodation"?