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Existing home sales have fallen for 10 consecutive months, the longest slump since 1999, according to data from NAR. That's a sign rising rates are weighing on the housing market, with the average rate for a 30-year mortgage surpassing 7% earlier this year. But a dip mortgage rates in recent weeks means demand could soon start to pick up, NAR's chief economist said.Sales of existing homes have now dropped for 10 straight months,...