Paramount Group has officially parted way with Waterview, the 24-story, 647,000-square-foot office tower overlooking the Key Bridge in Rosslyn. New York-based Paramount, which acquired the prime office property at 1919 N. Lynn St. in 2007 for $413 million, according to Arlington tax records, sold it off for $460 million in cash, per a release. The buyer, while not disclosed, was previously reported to be Morgan Stanley Real Estate. The latest sale amounts to about $711 per square foot, which is...