NEW YORK CITY — Lee & Associates has brokered the $18.4 million sale of an 18,000-rentable-square-foot, 14th floor office condominium at 420 Fifth Ave. in Midtown Manhattan. Lee & Associates represented the buyer, Marist College, and the seller, A.M. Property Holding Corp., in the transaction. The space will serve as an alumni information center for Marist College in New York City. The private, liberal arts college is located in Poughkeepsie. The 28-story office building was completed in 1989 and is located near Bryant Park. Marist College will take occupancy of the space in December 2018.