There is a leak upstairs. How can I write an official letter with the property?

First of all, it depends on whether it is the scope of property management.

As far as my own experience is concerned, generally speaking, if there is no leakage from the supervisor who enters the house, then the property can be directly repaired. As for writing official letters? There seems to be no special need.

Under normal circumstances, you can call the property service center directly if you have maintenance problems, or you can go to the property service center for maintenance if you are not at ease. The property management company will have a maintenance report, and they will fill it out for the owner to confirm. So I don't need any trouble.

And if the upstairs residents leak, you can only find the upstairs residents and urge them to repair as soon as possible. If losses are caused, they can be handled through consultation.