The residential property stipulates that battery cars are not allowed to enter the door. Is the property liable after a traffic accident?

We have the responsibility of neglecting management. Our residential property is indifferent to garage residents. When the owner backed the car, he injured the tenant. At the same time, the owner compensated the injured and sued the property management company. It's not a matter of time, but a rule to follow. What do you want the property management company to do? This is the rule of being a man and doing things. Rules are two-way and equal.