I recently served my brother with a 30 day notice to move out of my mothers house (she's deceased). He moved his stuff out of the house except a 2 broken dressers (empty) and he's got a non-working car in the driveway. He hasn't lived or occupied the house since 1 day after notice was given. Can I change the locks on the house or am I required to wait until he moves his car? The house is located in California. He hasn't paid any rent for the month and is not on the park lease.