My brother accidentally fell to his death in the hotel. Is it illegal to hang banners in the hotel square?

Personally, I don't think your approach is appropriate. If the hotel fails to fulfill its security obligations, it needs to bear the corresponding liability for compensation. According to the judicial interpretation of the Supreme Court's trial of personal injury compensation cases, the right holder of compensation must bring a lawsuit to the court within one year after the accident, demanding that the compensation obligor bear the personal injury compensation. Because the statute of limitations is only 1 year, if the statute of limitations is exceeded, the defendant's defense of the statute of limitations will not be supported in law and will lose the right to win the case.

The victim's death compensation includes medical expenses, lost time, nursing expenses, transportation expenses, accommodation expenses, hospital food subsidies, necessary nutrition expenses, funeral expenses, death compensation, and other reasonable expenses such as transportation expenses, accommodation expenses and lost time for the victim's relatives to handle the funeral.