The managing partner of the largest criminal defense intensive law firm in Louisiana, Manasseh has represented more than 12,000 clients over a twenty-five year career. In addition to the prolific criminal practice, Manasseh oversees a litigation practice that includes personal injury, wrongful death and environmental law. His practice includes the full array of practice experience include city, state and federal courts; motion, trial, appellate and post-conviction practice; mediation, consultation and counseling. In 1990, Manasseh became one of the youngest attorneys to successfully argue before the United States Supreme Court in Foucha v. Louisiana.