After the handover of new and old properties, most of the owner's information is lost, and most of the residents in the community are renters. Is there any way to collect the most comprehensive custom

After the handover of new and old properties, most of the owner's information is lost, and most of the residents in the community are renters. Is there any way to collect the most comprehensive customer information? In fact, at present, we take over a real estate basically like this.

First of all, when real estate companies look for previous properties, because some money will definitely be confiscated, these things have to be paid if they want money.

Check every household, as many households as you can, and let the duty room follow up the investigation in time.

Then according to the survey, if there is no information, a leaflet will be posted at the door to inform.

This is the only way. Sometimes I have to work overtime because I will be at home at night.