How should a real estate salesman make a watch when running a property?

I just worked as a salesman in a real estate company. What we mainly do here is the third-class market, generally second-hand housing rental. Buy, sell and lease some office buildings. The manager told me to be familiar with the real estate market. I simply analyzed some places that I need to run, hoping that my predecessors or experienced people would give me some valuable suggestions. What I may need to run is: name, address, developer, property management company, property management fee, parking fee, community, building number, how many households are there in one staircase? Huxing, area, market rent, and the surrounding facilities of the community. In fact, the manager probably means that I just run first, and the location of each building should match the surrounding areas, but I want to do it perfectly at once. Another important question is. Dear seniors, how can I master this information and ask for it myself? So who are you going to ask? Can't catch the householder everywhere? I hope you can give me some advice. Thank you. Thank you very much.