New Miami-Dade County commercial property listings on MLS reached one of the highest levels in the past 5 years. The 423 new listings level has only been surpassed a half dozen times in the last 5 1/2 years, and even then by a small margin. Additionally, this level, in the upper end of a new normal today, is almost twice as high as what was considered “normal” in 2010 and 2011.