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

Louis has represented Cornell University, Clarkson University, New York Chiropractic College and Syracuse University and other higher education institutions in labor and employment matters including NLRB matters, affirmative action plans, OFCCP audits and proceedings, § 504 Rehabilitation matters, all types of employment and student discrimination issues, tenure denial and faculty termination cases. He has lectured to various higher education groups including national College and University personnel and business officer associations. Louis has served as an adjunct professor at Cazenovia College and Syracuse University School of Management.

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.