Leonard A. Lauder, the billionaire heir to the Estée Lauder Companies cosmetics fortune, plans to step down from the company’s board of directors in November of this year. Lauder will remain chairman emeritus of the board.
The 90-year-old’s son William P. Lauder currently serves as executive chairman of the board. His other son Gary M. Lauder, the managing director of Lauder Partners LLC, a Silicon Valley-based venture capital firm, plans…