My dad worked as a security guard in a property management company and was beaten. Should the property bear the responsibility?

First, see if your father has retired. If he doesn't retire, it depends on who he signed the labor contract with.

If a labor contract is signed with the property, the property shall be responsible for it; If it is a labor dispatch, the labor dispatch company is responsible.

This is a work-related injury. If you don't give work-related injury treatment, you can find labor inspection or direct labor arbitration.

If your father retires, it's a labor contract. If it is a labor contract, the property manager and the alcoholic are required to be responsible.

If the other party does not pay compensation, it can be handled directly through litigation.

In addition, I wish the patient a speedy recovery.