BY DEBORA LIMA dlima@MiamiHerald.com Sales of existing Miami-Dade single-family homes and condominiums in the mid-market range have grown by double digits since 2015, despite an overall decrease in residential property sales across the county, the Miami Association of Realtors reported Tuesday. Sales of existing single-family homes in the $200,000 to $600,000 range, which accounted for [...]