Earlier this month, we reported that the U.S. Attorney in the Southern District of New York filed a billion dollar False Claims Act lawsuit against Deutsche Bank and its subsidiary MortgageIT for alleged mortgage fraud during last decade’s housing bubble. (Click here for the prior post.) It appears that a number of state attorneys general may begin to file lawsuits as well. Yesterday, the California Attorney General announced the creation of mortgage fraud strike force, and the Illinois Attorney General expanded her investigation into alleged practices used by banks and other mortgage institutions, including “robosigning.” (Click here for the California AG press release and here for the Illinois AG press release). Last week, the New York Attorney General opened an investigation into mortgage securitization practices. (Click here for the story reported on the WSJ blog.) Illinois, California, and New York all have state false claims acts and the increased attention given by the attorneys general may encourage private litigants to bring qui tam cases.