The firm that recently sold a stalwart Park City hotel still sees the community as an attractive market and said it remains bullish on the area. Chicago-based Singerman Real Estate held the DoubleTree by Hilton Hotel Park City – The Yarrow for more than a decade. That firm transferred the property in mid-December to a business entity called Park City Yarrow Owner LLC. Outbound Hotels lists the DoubleTree by Hilton Hotel Park City – The Yarrow as…