These were the deals, trends and moments that shaped and defined commercial real estate in 2019.: Commercial real estate saw many dramatic twists and turns in 2019, many driven by the burgeoning sharing economy and ecommerce sectors. The year started out with a lot of hand-wringing about when the recession would come, but it turned out to be another prosperous 12 months for the industry. Nevertheless, some warnings signs are again flashing as we enter 2020. Read on for our roundup of the top commercial property stories of 2019.