Attorneys for disenfranchised GSE shareholders have already filed a notice to appeal this week’s surprise dismissal by a Washington, DC, federal judge of the lawsuits challenging the Treasury Department’s 2012 “net-worth sweep” of nearly all profits generated by Fannie Mae and Freddie Mac. However, a legal expert notes that the ruling by Judge Royce Lamberth of the U.S. District Court for the District of Columbia makes a tall order even taller for investors taking on the government.