The overall North Fork housing market was characterized by rising prices, declining sales and inventory and faster marketing time. Median sales price increased 6.8% to  $550,000, and average sales price edged up 1.3% to $691,016 respectively from the year-ago quarter. While condo median sales price declined 6.5% to $322,500, single-family median sales price rose 9.3% respectively over the same period. Since single-family sales…