Tranchant, a 40-year-old Haitian-born U.S. citizen, says supervisors prevented him from serving the family during their lengthy stay last month.
He claims the hotel's compliance with the request created a hostile and abusive work environment.
Tranchant's lawyers filed the lawsuit last Tuesday in Florida's Middle District of U.S. Court in Fort Myers and seek damages exceeding $75,000.
A spokesman says the family isn't welcome to return, and the hotel has policies preventing discrimination and harassment.
Tranchant is still working at the Ritz-Carlton.