Home foreclosure filings accelerated in Nevada in June, suggesting further trouble for the state's real estate market. RealtyTrac, an Irvine, Calif., company that tracks foreclosure activity, today reported 8,726 notices of default were filed in Nevada in June. Total filings, including notices of default and notices of intent to auction, reached 18,764 in Nevada in June -- up 9.37 percent from May, RealtyTrac said.