President Obama late last week signed a continuing resolution that includes language to extend the $729,750 conforming loan limit for FHA, Fannie Mae and Freddie Mac mortgages. Without the extension, the conforming loan limit would have dropped to $625,000 on Jan. 1, 2010. The number of mortgages made between $625,000 and $729,750 is relatively small. The Federal Reserve said that only about...