Miami-Dade: residential sales in the third quarter rose 15.2 percent, year-over-year, to 6,792 in Miami-Dade County, the highest surge of all three counties. Condo sales increased 16.7 percent to 3,524, and single-family home sales jumped 13.7 percent to 3,268. Sales volume totaled $3.1 billion, up 24 percent from $2.5 billion during the same quarter of last year. The third quarter of 2017 was slow due to the impact of Hurricane Irma, which could explain why sales experienced double-digit growth.The median ...