By James P. Gannon Real estate sales in Rappahannock County continued at a sluggish pace in this year’s spring quarter, with the number of sales down about 40% from a year-earlier, a tally of recorded property-transfers shows. But in a sign of the times, one portion of the market is picking up: Foreclosure sales. According to county land transfer records, there have been nine foreclosures in the county so far this year, up from just three at this point in 2007. Rappahannock’s real estate mar