@Isabel3255 : Ellie has every right to allow whoever she wants into HER house, and turn away who she wants.
Why should her family's health & the health of other future guests suffer, because some silly, selfish, entitled little girl piece of scum CHOSE to break the 'No pets' rule by bringing a PET (not a service animal) when the rules said NOT?
The host can NOT get sued; her state laws support her reasonable actions.
The issue is that the silly little immature child of a guest BROKE the rules by booking when she'd been asked not to. - No one wants a disrespectful little BRAT on their premises, who has shown they can't be trusted and has no respect.
Nor should a host suffer because of a SYSTEM error.
Yes, this forum is public. At least hosts reading this now know not to take YOU as a guest, with attitudes like yours!