I didn't need to look for impropriety at American Home Mortgage to guess that it should be considered if you were to make an investment in their defaulted paper. They appointed Stephen Cooper CEO. Stephen Cooper is who you appoint when you do not want the bankruptcy management looking at your past. See my last post. The Wall Street Journal has however beaten me to the story. In an article about two Bear Stearns executives that face indictment is this little throw-away: Federal prosecutors in Brooklyn are investigating whether the Swiss bank UBS AG improperly valued its holdings and whether the collapsed mortgage lender American Home Mortgage Investment Corp. of Melville, N.Y., engaged in accounting fraud, people familiar with the matters have said. Prosecutors in Manhattan and Los Angeles are respectively probing whether mortgage lender Countrywide Financial Corp. engaged in securities fraud or loan fraud. None ...