in China. Some of them bring Chinese condos to sell in the U.S..
In east and west coasts, some brokers are being laid off from Fortune companies and become brokers. Many brokers have multiple master degrees, some have PHD. By the way, in west coast, you can pick out several Chinese PHD in one apartment complex. They are all working as bees in the United States.
Some of the brokers owe several houses. Think of the net worth of several houses in west coast.
Take example of a top Chinese broker leads a team of people, selling say 50 million dollar houses a year. 50 * 0.03 = 1.5 million ( maybe even over 2 million depends on who handles the deal).
How much does an engineer earn?
How much does a struggling business earn?