My question involves a roommate in the State of: Michigan:

I live in Michigan and my roomate today told me he was moving out tomorrow. I was curious to if there has to be a timed notice before he can up and leave me stuck with bills. We do pay yearly for rent so i will be fine there. But is he required by any law to pay utility bills for any amount of time since he isn't leaving a notice?

Thank you for any detailed responses as i am very unaware on this topic.