Can I claim for lost things in a residential area with property management?

You can unite and negotiate with the property first, and expand your momentum first. If the property is neglected, you can take up legal weapons and file a civil lawsuit with the court. On the grounds that the property failed to fulfill its management and protection responsibilities, it filed a lawsuit with the court, requesting the court to decide that the property should be liable for the losses caused by its dereliction of duty, and at the same time requesting the property to strengthen management in the future. Of course, it is impossible for them to make full compensation, but it is possible to compensate most of them.

Of course, if you don't want to go to court, you can also mediate under the auspices of the relevant local administrative departments, and the effect is better; Or if there is a local people's mediation Committee, it is also possible to seek their mediation. But in any case, you must build momentum, because you are in a relatively weak position, and strive to find evidence that the property has not fulfilled its management responsibilities, which is the basis for your victory.