My question involves an eviction in the state of: Wisconsin
I gave tenants a non renewal of month to month rental agreement. They have not been staying at the premises since March 17, 2013. We live on site so I can verify this. I hired a property manager to show the apartment on March 17, 2013 and the tenant left a note on the 21st of March saying I broke our contract because I was present during the showing.
My main concern is if they have not been occupying the apartment since the 17th and have not vacated the premises at end of contract, can we change the locks at 12:00 a.m. April 1, 2013? How do we prove that they have abandoned the premises (all of their belongings are still on site)? Do we have to start an eviction process and which process would be the best?
Also, when I was in the apartment, the heat was set to 48 degrees. Do tenants have to keep the heat set to a minimum temperature during heating season like landlords have to?
Thank you!

