Tenant "moved out" but left their personal belongings

[Paul De Luca]

Hey everyone,

I closed on a 3-unit house hack in Chicago early last month and provided one of the MTM tenants notice of non-renewal of their lease. We ultimately both agreed to a move out date of June 11th and I have this all in writing. On June 11th the tenant says they left the key to the front door outside the front door at the property, so I went to go pick that up. When I arrived I collected the key and found the door to the unit unlocked with all of the tenant's personal items still in the unit (and a bit of a mess). I have asked the tenant several times now when they plan on picking up their things, but so far I have not gotten a response despite my texts and calls. If the tenant does not get back to me, what can I do in this situation? The tenant understood and agreed to the move out date plus provided their key but left their furniture behind, so can I assume they do not want those things? 

Note: The tenant is an elderly couple & there is a bit of a language barrier so I have mostly been communicating with them through their daughter. Back in May she expressed that she was in the process of finalizing a move in date at an independent living facility for her parents. I'm not sure if they are following through with that.