The doorknob was stolen before the new house was officially moved in. Is there any responsibility for property management?

1, this thing can only admit that it is unlucky.

Although you didn't decorate and move in, according to your description, it is estimated that the house has been handed over. After handling the handover procedures, the scope of maintenance and warranty of the house is clearly stipulated in your residential instruction manual and quality guarantee. The damage of this door handle is definitely not covered by their warranty.

3, such a problem, at most, can only show that the property management company has joint responsibility, but they can not take full responsibility. It is legal to specify or require them to bear part of the joint liability, but it is basically impossible to implement it in operation. You can't sue them for one thing. For an inappropriate example, things in your home were stolen, and you can't let the property management company compensate you in full. They can at most give you an apology, symbolic compensation or sympathy.

4. I suggest you calm down and contact the manufacturer's warranty unit through the property management company to replace the handle. Because the door is installed by the developer, they must have a fixed contact with the door supplier. Manufacturers will always accept the problems encountered by newly installed doors within a certain period of time, and of course most of them will be charged.