Deals & Dealmakers Exclusive AgenciesAvison to lease new west side offeringREWMarch 6, 2020March 4, 2020 by REWMarch 6, 2020March 4, 202002297 Avison Young has been named the exclusive leasing agent for Six60 Twelfth, a 300,000 s/f mixed-use building currently under construction at 660 12th Avenue on