I am a salesperson in a home improvement company. I want to have a good relationship with the sales department and the real estate agent. Please tell me how to build a good relationship with the people in the sales department.

Nowadays, property management is generally outsourced to professional property companies. You can pretend to be a customer and call the sales department to ask about the house. Ask which company is responsible for the property, and then go directly to that company. Talked to the real estate company. Or when you go to see a model house, tell the person in the sales department or the manager directly how much commission you can share.