Case-Shiller’s National Home Price Index showed 3.20 percent national home price growth in September, which was 0.10 percent higher than August’s reading of 3.10 percent. The 20-City Home Price Index showed the continued impact of exorbitant home prices on both coasts as home price growth slowed in high-cost areas and smaller markets experienced upward pressure on home prices as home buyers were seeking affordable homes. Phoenix, Arizona led the 20-City Home Price Index with 6.00 percent year-over-year growth in September. Charlotte, North Caroline had 4.60 percent growth in home prices and Tampa, Florida rounded out the three cities with highest…