The official charged with rounding up funds for creditors of Scott Rothstein's law firm is suing a close friend of the disgraced former attorney, alleging a four-year history of back-and-forth transfers that helped Rothstein fund his lifestyle and Ponzi scheme, Dow Jones DBR Small Cap reported today. Herbert Stettin, the chapter 11 trustee for Rothstein Rosenfeldt Adler PA, on Thursday launched a lawsuit against Ronnie I. Picou and Southern Grouts & Mortars Inc., the Pompano Beach, Fla., company that has Picou at its helm and, according to Stettin, was tangled in the Florida resident's relationship with Rothstein.