Picky co-op board picks a tenant

Related Companies President Jeff Blau may not have met the standards of the co-op board at 820 Fifth Avenue, but apparently Kenneth Griffin, CEO of Citadel Investment Group, does. Griffin, who has an estimated worth of $3.7 billion and whom Forbes named the 97th richest American, paid just below the fourth-floor unit’s $35 million asking price, the New York Post’s Jennifer Gould Keil reported. The Upper East Side home, once owned by Tommy Hilfiger, is currently owned by home builder Ara Hovnanian.