Two accountants accused of helping R. Allen Stanford swindle investors in a $7 billion Ponzi scheme are set to begin the last criminal trial stemming from the plot, Bloomberg News reported yesterday. Stanford Financial Group Co. Chief Accounting Officer Gilbert Lopez and Global Controller Mark Kuhrt face 10 counts of wire fraud and one count of conspiracy to commit wire fraud, which could send them to prison for more than 20 years if convicted by a jury. The men pleaded not guilty when they were indicted with the Texas financier in June 2009.