I have a guest that booked my place in Chicago for 30 days. I have read that if they book for 30 days or more then they are considered a tenant and have tenant rights (difficulty evicting etc)

I researched Chicago Ordinance and it says 

"Dwelling units in hotels, motels, inns, bed- and-breakfast establishments, roominghouses and boardinghouses, but only until such time as the dwelling unit has been occupied by a tenant for 32 or more continuous days and tenant pays a monthly rent, exclusive of any period of wrongful occupancy contrary to agreement with an owner."

So which is it. 30 or 32 days?