I wanted to ask about the legal aspect, and I smashed the first floor on the balcony of my house

He will win his case. Of course, if you can prove which family's balcony fell, then you don't have to compensate, only let that one compensate, if you can't prove it, then you are jointly and severally liable, and you can only admit it. However, there is another point, that is, if you can prove that it was not your balcony that fell, you can be exempted from compensation, and the same is true for others, as long as you can prove that it was definitely not your own balcony that fell, you can not be compensated.

But there is one point, that is, it is more difficult to prove, after all, the law is not something that you can say a few words to exempt from liability. Of course, as for whether the construction party cut corners, that is after you compensate, find evidence and let the construction party compensate you. But you have to compensate the café first, this is inevitable.

You can't win because the object of the lawsuit is wrong.

If there is a clear infringer of rights (the one who dropped the cement), the other party cannot take the other 16 households as the target of the lawsuit.

Others who have not lost cement shall not be liable for compensation.

If you can prove that the damage to the first floor was not caused by your balcony, you will be exempt from liability. Also the balcony falls? This can also be identified as a building problem when the balcony was built at that time, or was it something else?

If the quality of the balcony is unqualified due to the construction unit cutting corners and other reasons, then the construction unit will be liable.