Some big banks have cut back on doing business with mortgage brokers - and if the trend continues, many mortgage brokers could close down.

That may be bad news for consumers because fewer brokers could lead to a less competitive marketplace and more expensive home loans resulting from consumers not being able to easily comparison-shop rates.

Lenders drop mortgage brokers

Some big banks are cutting out mortgage brokers and having lending generated by their own people. That could be bad for consumers.

"The banks want to get rid of mortgage professionals to reduce competition," said Alan Rosenbaum, founder of GuardHill Financial, a New York City-based brokerage firm. "It's not good for consumers."

A few years ago, according to Rosenbaum, mortgage brokers were responsible for 80% of the mortgage-lending business in America. He said that's probably under 70% now and dropping.

Chase took the step of discontinuing its wholesale lending for two main reasons, according to Kelly. For one, "The best people to originate the loans, we believe, are those working in our bank branches," he said. Secondly, Chase determined that loans originated by brokers defaulted at higher rates than did bank-originated loans.

The brokers scoff at that. "Mortgage brokers don't develop their own products, their own guidelines and parameters," said Savitt. "They take applications; Chase makes all the decisions."

"Mortgage brokers have been blamed for everything from tooth decay to global warming, and it's baloney," added Allen Hardester, a Maryland-based broker.

He pointed out that no mortgage broker ever underwrites a loan, creates a loan program or approves an application. Lenders always have the final say.

And, if the loans from brokers did perform poorly, it's because lenders encouraged, nay prodded, brokers into bringing them more and more poor-quality customers during the boom years. Subprime mortgages were very profitable, before they started to default at higher and higher rates.

"The lenders dangled large carrots in front of brokers," said Rosenbaum. "They told me, 'Unless you give us more subprime business, I can't improve your pricing for your good customers.'"

So far, the other big banks, Wells Fargo (WFC, Fortune 500) and Bank of America (BAC, Fortune 500), have not followed Chase and Citi's leads. "[These] lenders may be looking at this as an opportunity," Savitt said. "They said they were committed to the broker channel and would expand it," he said.

If that's true, it shouldn't affect the market too much even if two big-hitters drop out.

"It will remain a competitive environment," said Courson.

Plus, he said, the there will be a flight to quality. "I think even for banks that continue to take mortgage broker-originated loans, there will be much higher standards."

That includes requiring brokers to show greater stability by demonstrating higher net worth and posting higher surety bonds (a kind of performance guarantee).