I've been asking through text message for over a month and a half without an answer and I'm moving out in 2 weeks so I don't have the option to do the crr. I've told him numerous times he has until the 13th but I still haven't gotten a response.
A text message does not constitute proper legal notice to the former roommate. You must put your notice IN WRITING.
Wisconsin law states that you may:
• store it and place a lien on it for the cost of storage. The landlord must notify the tenant within 10 days after storage charges are imposed. Medicine and medical equipment must be promptly restored to the tenant and are not subject to the lien.
• notify the tenant that the he intends to sell or otherwise dispose of the property unless it is claimed within 30 days. The landlord can deduct sale and storage costs from the sale proceeds. The tenant may claim any residual within 60 days after the sale; otherwise the landlord must send it to the Department of Administration.
• store the property without a lien and return it to the tenant.
Those are your options.
If you knew that you were leaving and that the roommate wasn't coming back before you did, then you needed to do more research on what to do with their abandoned property sooner than this. As it stands, it looks like you might have to give them the 30-day written notice by mail and pack up their stuff to go with you. After the 30 days has passed, and the roommate has failed to contact you to collect his property, only then you can sell or dispose of the property as you see fit.