Louis has practiced labor and employment law for more than 40 years and is co-managing member of the firm's New York City office and managing member of the Westchester office.

Louis represents employers and management in all aspects of labor and employment law. His areas of experience include collective bargaining, workplace investigations, NLRB proceedings, labor audits, supervisory training, wage and hour issues, arbitration, jury trials in both state and federal courts, wage incentive plans, OFCCP audits and proceedings, employment litigation before the EEOC and the Human Rights Division and alternative dispute resolution techniques. Louis also serves several insurance companies as panel counsel (e.g., AIG and Chubb) with respect to employment litigation matters. From 2002-2004, he served as General Counsel and Secretary to Agway, Inc., a Fortune 500 Company.

Louis co-authored the FDCC Quarterly article entitled Employers' Settlement Agreements with Departing Employees Under Attack, Vol. 57, No. 3, Spring 2007. He also co-authored a complete guide for business managers and HR professionals written in plain English entitled, What Every Business Manager and HR Professional Should Know About ... Federal Labor and Employment Laws and a two volume treatise entitled Corporate Counseling (1988) and was a contributing author to Public Sector Labor Law (1988). Louis is also on the editorial board of the two volume treatise entitled New York Civil Practice Before Trial (2001). He has authored and co-authored numerous articles on various labor and employment law topics. Louis' published articles include: "Enforcing Employer-Employee Arbitration Agreements After Circuit City", 18 Fordham University Law Journal 27 (2001); "Forging a Strategy to Combat Sympathy Strikes", 29 Syracuse Law Review 847 (1978); "Mid Term Bargaining Over Unit Work Transfers", 45 CCH Labor Law Journal No. 7 (1994); "The Growing Menace: Violence in the Workplace", 67 New York State Bar Journal 1 (Jan. 1995); "Civility and Professionalism", 68 New York State Bar Journal No. 1 (Jan. 1996); "Workers' Compensation Discrimination in New York: Is It Really LoDolce Vita?", 32 New York State Bar Journal 220 (June 1982); "Employer Liability for Sexual Harassment After Ellerth and Faragher", 6 Duke University of Gender Law & Policy No. 1 (1999); two articles on Title IX and Intercollegiate Athletics, 6 Journal of College and University Law 61 (1980); "Screening Applicants for a Safer Workplace", HR Magazine, p. 55 (March 1995); "After-Acquired Evidence in Employment Discrimination Cases", 19 New York State Bar Association Labor and Employment Law Newsletter No. 2 (1994); and "Employer's Responsibilities Under 1986 Immigration Act and COBRA", The CPA Journal p. 32 (May 1988). In May of 1996 Louis was interviewed extensively in a Forbes Magazine cover story on Sexual Harassment. In their January 2003 issue, the Corporate Legal Times described him as the "Great Negotiator". He was also featured in the United Educator's video entitled "Sexual Harassment in Academia, No Real Winners", and has been quoted in several publications including Business Week.

Louis has been a key speaker at numerous seminars throughout the United States and other countries on a wide variety of Labor and Employment Law topics. In addition, he has lectured to: various university groups, including the College and University Personnel Association; local, state and national SHRM Conferences; and a number of national and regional business associations.