Apartment REITs in coastal markets might benefit from the side effects of 2017 tax reform. : With rent growth climbing and demand hitting its highest level in eight years, 2018 proved to be a good year for the multifamily sector. But what’s on tap for 2019? This year could be a mixed bag for the sector. According to the 2019 Multifamily Outlook from commercial real estate company CBRE, multifamily completions will remain high this year, but construction starts will fall.