Is the neighbor's leaking property responsible?

1, the roof leaks, and the property is of course responsible; The upstairs neighbor leaks water, and the property is not responsible.

2, because there is only a property service contract relationship between the property management company and the owner, if it involves maintenance responsibility, it only involves the maintenance responsibility of public properties and facilities.

3. The upstairs owner is responsible for water leakage, but the property is not.