New tenant claiming cat allergies causing allergic reaction! Help

[Paul F.]

We are first time landlords and our tenant is moving in this week. We already did the walk through inspection and gave her the keys. However, we Just received a text from her that the "cat smell" is causing a severe reaction. We had All carpets professionally steam cleaned the day after we moved out. We did have a cat but moved him out over two weeks ago!  What should we do?! We thoroughly screened our tenant and everything was seemingly going smoothly. In her text she mentioned tiling the floors at her own expense. That seems weird and not normal to me! Help!  Another strange thing as that we spent over an hour in the house during the inspection and she made no mention of the allergic reaction then or when touring the house during the showings, when the cat was still living there. UGH