The number of US homeowners swept up in the housing crisis rose further last month, with foreclosure filings up nearly 50 percent compared with a year earlier, a foreclosure listing company said Friday. Across the United States, 261,255 homes received at least one foreclosure-related filing in May, up 48 percent from 176,137 in the same month last year and up 7 percent from April, RealtyTrac Inc. said. One in every 483 US households received a foreclosure filing in May, the highest number since RealtyTrac started the report in 2005 and the second-straight monthly record. Foreclosure filings increased from a year earlier in all but 10 states. Nevada, California, Arizona, Florida and Michigan had the highest statewide foreclosure rates. Lehman Brothers economist Michelle Meyer said in a report Thursday that US home sales are likely to hit bottom at the end of this summer, but said a recovery in sales is likely to be "feeble." Home prices, she wrote, are still expected to fall another 10 percent by the end of 2009.