First Potomac Realty Trust (NYSE: FPO) co-founders Doug Donatelli and Nick Smith are back in the commercial real estate business, roughly 18 months after their abrupt departure from the Bethesda-based real estate investment trust they launched two decades ago. Donatelli and Smith registered DSC Partners LLC with the Maryland Department of Assessments and Taxation in January with the aim of seeking out value-add opportunities across Greater Washington. The pair had been under a noncompete clause...