E-Discovery Execs Name Top EDD Law Firms; 75% of AmLaw 200 Not Qualified to Handle Complex EDD Matters. "However, when asked, "What percentage of AmLaw 200 firms has the requisite knowledge and experience to professionally handle a complex EDD matter?" there was broad consensus that the answer was not more than 25%. The research also provided benchmarks for prosecutorial and judicial EDD expertise. . . . "