Karl C. Seman, Esquire, is a founding member of KCS Law, specializing in DWI and criminal defense across Nassau and Suffolk Counties. With over 35 years of experience, Mr. Seman is a seasoned litigator known for his pragmatic approach. His background includes serving as a Felony Trial Assistant District Attorney in Nassau County and extensive experience in criminal and DWI defense. His practice covers a wide range of cases, from traffic violations to serious charges like vehicular manslaughter and murder. Notably, Attorney Seman is well-versed in the scientific principles of chemical testing and has completed a specialized police course on detecting impaired drivers. Beyond criminal defense, he handles corporate and individual white-collar offenses.
A mentor to young lawyers, Mr. Seman is committed to client service and has written and lectured on DWI defense strategies. His unique management experience at Lord and Taylor in NYC has honed his skills in theft-related cases. As former Chairman of the Nassau County Bar Association’s Fee Dispute Committee, he values clear attorney-client communication. Additionally, Mr. Seman manages school-related cases and represents students with special educational needs. Every client receives a detailed engagement letter to ensure transparency and protection.
Sociology Teaching
Professional Associations and Memberships
Nassau County Bar Association, Attorney-Client Fee Dispute Conciliation, Chairman
Nassau County Homicide, Major Felony Defense Panel, Assigned Counsel Plan
New York County Major Felony and Homicide Panel Assigned Counsel Plan
Better Business Bureau, Autoline Arbitration, Lemon Law Claims, Arbitrator
American Arbitration Association, New York, New York
American Judges Association
Nassau County Bar Association
Former Assistant District Attorneys Association
New York State Trial Lawyers Association
New York Association
American Bar Association
New York State Defender Association
Past Employment Positions
District Court, Nassau County, Judicial Arbitrator
Nassau County District Attorney's Office, Assistant District Attorney, January 1, 1984 - January 31, 1987
Abady & Jaffe, Madison Avenue, New York City, Senior Trial Counsel, November 1, 1987 - October 31, 1988
Newman, Schlau, Fitch & Burns, Lower Broadway, New York City, Senior Trial Associate, July 1, 1987 - October 31, 1987
Levine & Robinson, Mitchel Field, NY, Senior Trial Associate, January 1, 1987 - July 31, 1987
United States Attorney's Office, Washington D.C., Felony-Trials Division, Law Student Intern, 1982
Judge Henry F. Greene, Washington D.C. Superior Court, Law Student Intern, August 1, 1981 - December 31, 1981
Massachusetts Attorney General's Office, Civil Rights and Consumer Divisions, Boston, Intern, January 1, 1979 - April 30, 1979
Massachusetts Attorney General's Office, Civil Rights and Consumer Divisions, Boston, Intern, April 1, 1978 - June 30, 1978
Massachusetts Attorney General's Office, Civil Rights and Consumer Divisions, Boston, Intern, January 1, 1977 - April 30, 1977
Massachusetts Attorney General's Office, Civil Rights and Consumer Divisions, Boston, Intern, October 1, 1977 - December 31, 1977
First National Bank of Boston, June 1, 1979 - December 31, 1979
Arlington Massachusetts Police Services, July 1, 1977 - September 30, 1977.
