For Theresa Sanchez, "It was my first home, second marriage. I thought everything would be nice moving in." At least, it should be. First-time homebuyer Lorie Williams recalls, "I was happy... at first." The Sanchez, Williams and Jones families are among the many who watched and anxiously waited as the walls went up on their Beazer homes in the Colton Ranch neighborhood in North Las Vegas. Then, that sinking feeling set in. "I don't know what to do," said homeowner Arthur Jones. "I'm just lost. I haven't even been living here for two years yet. Every room in this house...