Luis F. Llach-Zúñiga

Practice Areas

  • Labor and Employment
  • Civil Litigation
  • Appellate Practice


  • Commonwealth of Puerto Rico
  • U. S. Court of Appeals for the First Circuit
  • U. S. District Court for the District of Puerto Rico


  • Federal Bar Association


  • Bachelor of Science in Biology (2001), from the University of Virginia (UVA)
  • Juris Doctor (2004), from the University of Puerto Rico, School of Law

Mr. Luis F. Llach-Zúñiga, Esq. is an Attorney at Casillas, Santiago & Torres, LLC, where he serves as an attorney specializing in labor and employment counseling and litigation, in addition to civil and commercial litigation. Prior to joining the firm, Mr. Llach-Zúñiga spent several years working as an attorney at large law firms in San Juan, Puerto Rico, including McConnell Valdés, LLC and Fiddler, Gonzalez & Rodriguez, PSC, where he sharpened his litigation and counseling skills in specialized employment law matters. While at law school, Mr. Llach-Zúñiga served as a law clerk for Hon. Daniel R. Domínguez, United States District Judge.

Through the years, Mr. Llach-Zúñiga has extensively counseled and represented management in litigation in a broad array of employment and labor matters, ranging from compliance with federal and state employment laws, human resources compliance issues and policy matters spanning the entire employment life cycle, employee terminations, reductions in force, reorganizations, leave and accommodation requests under local and federal statutes, non-compete/solicitation issues, to complex discrimination, retaliation and sexual harassment cases. Mr. Llach-Zúñiga has successfully represented employers in litigation before federal and Puerto Rico courts, as well as administrative litigation before the Equal Employment Opportunity Commission (EEOC) and the Puerto Rico Department of Labor and Human Resources (PR-DOL).

Supreme Court of Puerto Rico

Pablo Meléndez v. CFSE 2016 TSPR 64 (195 DPR ___)

United States District Court, Puerto Rico

Vélez v. Universal Insurance Co., U.S. Dist. LEXIS 66454 (D.P.R.2014)

González v. Spirit Airlines, 922 F.Supp.2d 178 (D.P.R.2013)

Tormos-Pol v. University of Puerto Rico, Civil No. 10-1935 (D.P.R.2011)

Cardona-Román v. University of Puerto Rico, — F.Supp.2d –, 2011 WL 3204837 (D.P.R.2011)

Rodríguez v. IPR

Pharmaceuticals, Inc., Civil No. 08-2107 (USDC-PR)

Matías- Cardona v. Verizon-Wireless, 610 F.Supp.2d 157 (D.P.R.2009)

Mr. Llach-Zúñiga has also served as speaker in seminars and webcasts on matters including the Americans with Disabilities Act (ADA), recent developments and compliance with labor and employment legislation in Puerto Rico, handling disciplinary process, employee terminations and leaves of absence policies in the workplace, complying with Puerto Rico’s Unjust Dismissal Act in matters involving plant closings, reorganizations and reductions-in-force, and safety and security matters affecting employers in the hospitality industry.