By | January 06 2011 3:59 PM

A federal judge in New York has okayed a class action lawsuit that accuses Leucadia National Corp., a financial services firm, the debt-collection law firm Mel S. Harris & Associates, and a Brooklyn-based process serving agency Samserv Inc., of a racketeering scheme that allowed them to fraudulently secure default judgments in New York courts against unwitting consumers around the country.