New mortgage crisis coming?

WSJ: Commercial real estate could knock out the recovering economy:

Federal Reserve and Treasury officials are scrambling to prevent the commercial-real-estate sector from delivering a roundhouse punch to the U.S. economy just as it struggles to get up off the mat.

Their efforts could be undermined by a surge in foreclosures of commercial property carrying mortgages that were packaged and sold by Wall Street as bonds. ... The $700 billion of commercial-mortgage-backed securities outstanding are being tested for the first time by a massive downturn, and the outcome so far hasn't been pretty.

The CMBS sector is suffering two kinds of pain.... In the era of looser credit, Wall Street's CMBS machine lent owners money on the assumption that occupancy and rents of their office buildings, hotels, stores or other commercial property would keep rising. In fact, the opposite has happened. The result is that a growing number of properties aren't generating enough cash to make principal and interest payments.

The other kind of hurt is coming from the inability of property owners to refinance loans bundled into CMBS when these loans mature. By the end of 2012, some $153 billion in loans that make up CMBS are coming due, and close to $100 billion of that will face difficulty getting refinanced, according to Deutsche Bank. Even though the cash flows of these properties are enough to pay interest and principal on the debt, their values have fallen so far that borrowers won't be able to extend existing mortgages or replace them with new debt. ...

CMBS, of course, aren't the only kind of commercial-real-estate debt suffering higher defaults. Banks hold $1.7 trillion of commercial mortgages and construction loans, and delinquencies on this debt already have played a role in the increase in bank failures this year. But banks' losses from commercial mortgages have the potential to mount sharply, and the high foreclosure rate in the CMBS market could play a role in this. ...

Mounting foreclosures in the CMBS sector would likely depress values even further as property is dumped on the market.