What are Tenant and Landlord rights in WI?

I have a tenant who voluntary moved out of the rental house because the house was inhabitale. She is now taking me to court. Although last year there was repairs done to the house such as new carpet, painted walls, new cabinets in kitchen and new wood borders placed in. The reason for all this repairs cause the water heater exploded. The house insurance paid for all the repairs total cost was $10K in repairs. About a year later the tenant moved out and trashed the carpet (which now needs a deep cleaning) and dirted the walls. She expects me to give her security deposit back she has taken me to small claims court. She moved out on June 14th its only been a week. She has left her belongings in the garage. I have no idea when is picking up her stuff. I want to send her a letter saying to get rid of her stuff. How many days does she have to remove her things from the property? What are my rights as a landlord?