Deals & Dealmakers FeaturedHeller sells rental Union Sq. buildingREWAugust 21, 2019August 21, 2019 by REWAugust 21, 2019August 21, 201901157 By Sabina Mollot Slate Property Group and Alcion Ventures have bought a 133-unit rental building in Union Square from Heller Realty for $106.5 million. Completed