Corcoran Group real estate broker Mark Martov on why Africans are buying luxury real estate in New York. : Wealthy Africans are spending millions of dollars every year buying up property overseas. Their usual destinations of choice are London, Los Angeles, Miami, Marbella and recently, New York. Mark Martov, a licensed American Real Estate salesperson with the Corcoran Group, has sold tens of millions of dollars worth of New York luxury real estate to tens of wealthy African and Asian clients recently.