Wall St. Journal:  The current economy has caused many homeowners who relocate or buy another home to rent their old homes because they cannot sell it.

Hard data are scant on how many homeowners are renting out their homes, but anecdotal evidence suggests numbers are up. In one indication of the trend: More homeowners are converting their homeowners insurance to landlord policies that cover the additional risks of leasing out a home. Allstate Corp., the second largest home insurer in the U.S., reported a 27% increase in conversions in the first quarter from the previous year.