I visited a vacant property this week in order to winterize it for the upcoming cold. If the home is vacant, that means no one is there monitoring things. Since no one is there, you need to proactively winterize in order to prevent a burst pipe, which is a nightmare. Burst pipes can cause sever water damage to the unit. If you're in middle of showing searching for a tenant or you've secured one and you're waiting for their start date, you do not want to walk in to the house for an inspection to that mess.