Why did Hangzhou nanny sue the property for arson?

Legal analysis: The reason for the nanny arson in Hangzhou is that the property has the responsibility to protect the owner's house.

Legal basis: Article 285 of the Civil Law of People's Republic of China (PRC), the realty service enterprise or other managers are entrusted by the owners to manage the buildings and their ancillary facilities within the building division in accordance with the provisions of the third part of this law on realty service contracts, accept the supervision of the owners, and promptly answer the owners' inquiries about realty services.