One chief concern: Warehouse borrowing covenants have been breached.

"Our expectation remains that the next quarter will be amongst the toughest the industry has seen in the last 15 years," said Matt Scurlock, a managing director and chief financial officer at Texas Capital Bank.

Comerica's exit is Wintrust's opportunity...

Over the past year, a handful of banks have exited the warehouse finance sector, including Comerica and Fifth Third.

According to the lawsuit, Hometown Lenders owes Flagstar Bank roughly $21 million from unpaid warehouse lines.

Mortgage insurance linked notes will be exempt from a rule the SEC issued Monday on conflicts of interest in securitizations.

Peter Koh, an SVP at BoH, pinned the bank's exit from mortgage lending on market conditions.

Volume up, margins down.

There's an interplay between how the proposal would impact larger banks and the effects on nonbank mortgage companies.

Among those hanging up their warehouse spurs: Comerica Bank, which has been in the business for several decades...