I am a decoration company engaged in the market. I don't know how to deal with the developer's property. I don't even know how to get the phone number of the person in charge in the early stage.

You can ask, say that the company is considering advertising in the community, ask who is in charge, and others will tell you. Talk about advertisements and exhibitions when we meet, and finally reply that the company thinks the price is too high or something. Unwilling to come. In the process, you will get to know each other. No problem asking for a business card. If you think he can help, invite him to dinner or something and give him an introduction fee. But if you are a part-time job, it is estimated that it is difficult to come up with the referral fee, because you don't get much commission yourself. So no one will introduce you. If you are a boss or a contractor, there will be no problem. If it is a big deal, you will earn less. It is impossible to introduce people without paying. You give less, and others don't like it. How much money to give depends on who the other party is. When you speak, you should give a general idea to show your generosity and strength. Ordinary property clerks are unable to introduce you.