Maihar'du once lived on Verdimass and was unemployed there until Zek made him his servant. (DS9 - Worlds of Star Trek: Deep Space Nine novel: Ferenginar: Satisfaction is Not Guaranteed) Maihar'du would assist Zek in the day-to-day runnings of the Ferengi Alliance in the Tower of Commerce. (DS9 episode: "Ferengi Love Songs") In 2369, Maihar'du accompanied Zek to Deep Space 9, where Zek was to name his successor. Maihar'du assisted Zek in his plan to fake his death to see if Krax was a suitably person for the title. (DS9 episode: "The Nagus")