Fox Business says there are several factors to consider in the housing market this summer.  Mortgage rates are at near record lows, and probably will remain low for the summer unless the economy shows signs of strengthening.  From 2006 to 2010, the number of owner households dropped by 201,000 each year, while renter households increased on the average of 692,000 each year.  If buyers are willing to do remodeling, there are many opportunities of homes available at low prices.  For the first three months of this year, RealtyTrac said bank-owned and properties in foreclosure sold at 27 percent less than those homes not in foreclosure.  The chief economist for the National Association of Realtors, Lawrence Yun, said almost one in three homes sold the first six months of the year across the country was a distressed property.  If rents continue to rise, it may become cheaper to buy than to rent.  Also adjustable rate mortgages (ARMs) are returning to the financial products lineup, as are jumbo mortgages.