Those raw sales numbers give only a glimpse of the state of the ...Home sales in the city of Detroit are up more than 30 percent from last year, a cheery number that has inspired upbeat headlines and flickers of optimism among would-be home sellers. This is also perhaps why mortgage brokers charge high for closing fees. A percentage of the closing fee you pay on a mortgage goes to the mortgage broker's personal funds. This, along with a few more fees, stands as their salary.