Security deposit for pet (ESA)

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Can we charge tenants Pet security deposit and monthly pet fees if it is Emotional Support Animal (Companion Animal).

I did some research I saw that Fair Housing Act does not apply to people that renting out a SFH and own total of 3 or fewer rental property. So that means I can deny their application. But what if I choose to accept their application, can I charge them Pet security deposit and monthly pet fees??