Urban Market of Sugar Hill is opening a store at 700 St. Nicholas Avenue in Harlem. Three new supermarkets are about to expand where Harlemites can shop for groceries. Fine Fare is taking over the old Rite Aid location at 2170 Frederick Douglass Boulevard and 117th Street, and has a "Now hiring" sign in front of the still-under-construction space. A worker on site last week said doors would open on September 1. A hiring sign at Fine Fare Supermarket at 2170 Frederick Douglass