Do unto others. They allow the dollar to get in the way of what's right. It may be need rather than greed. The dollar obscures what is right and wrong. If you are a new agent, it is more painful to lose a commission in a dispute.
Most situations arise more from lack of knowledge than maliciousness.
Have an open ear to the other party, and sit down and talk it out. Be familiar with the code. Be active on the board. Be meticulous in business dealings. It is really basic stuff.