LATEST FLORIDA  HOME SALES NEWS:   WHY IS RIGHT NOW THE BEST TIME EVER TO BUY A PROPERTY IN FLORIDA? Florida single family home sales in Florida were up 33% for the month of JANUARY 2010  compared with the prior year, and condo sales gained 91%.  REALTY TIMES reports that Lawrence Yun, chief economist for the National Association of Realtors which conducts the pending sales survey said the swings from month to month are "masking the underlying trend (in housing) which is a broad improvement over year-ago levels."   Yun also predicts that that the two home purchase tax credits -- the extended $8,000 credit and the new $6,500 credit -- will have a significant impact on closed sales in the coming several months.  He forecasts that the two credits combined will stimulate 2.4 million sales in 2010, and most of that activity will be compressed into the first six months of the year. December's pending sales contracts were 11 percent higher than December 2008's.