Overall Palm Beach sales activity and inventory slipped from year ago levels. There were 77 total sales in the third quarter, 1.3% below the year ago level, of which condo sales expanded 7.8% and single family sales fell 18.5%. Overall listing inventory declined 11.7% to 339 of which condo listings fell 18.6% and single family listings increased 9.6%. The net result was a faster moving condo market and a slower moving single family market…