Rabbi Eliezer Lazi ben Joseph ben Lazi Heilbut (1740 – 1814) served as a dayan in Posen, then as Rosh Beth Din (Chief Justice) of the AHU (an acronym for the threesome kehilla of Altona, Hamburg, and Wandsbek).
In his teens he studied in the yeshiva of Rabbi David Tebele Scheuer in Bamberg.
He married Beila, the daughter of Tauderes Munk, a respected member of the kehilla in Posen.
In 1799, after Cohen left his position as rabbi of AHU, Heilbut was appointed as chief justice of the kehila.
He died in Hamburg in 1814 (1 Shevat 5574 on the Hebrew calendar) and because of the siege on the city he was buried on the grounds of the synagogue there.