What do you mean by "four in one" and "four in one" property personnel?

Four Enters and Four Enters of Property Personnel are mainly about entering the countryside, the community, the grassroots, the network, the grassroots cadres, the grassroots people, the customers and the netizens, so as to build the brand of Lian Xin projects. According to the relevant public information of the query, it shows that the control of key personnel is accurate. Set up a 142 supervision team composed of community cadres, * * * construction units, property management companies and grid workers, and establish a four-in-one working mechanism. The supervision team enters the grid, the community, the building and the unit every day to verify whether the key personnel are under control.