COLUMBIA, MD-A nine-asset, 280,000-sf office/flex portfolio in the Baltimore-Washington Corridor has traded for $44.2 million. Columbia-based Oekos Management Corp. has acquired the property from Rivers Center LLC, a group of Howard County-based private investors. Manekin Investment Services Senior Associate Don Schline and Investment Services Associate Liz Martin brokered the transaction.

Situated just off the Rte. 32 /Rte. 29 intersection, the single-story office/R&D buildings are located at 8300, 8310, 8320, 8325 and 8335 Guilford Rd., and 10200, 10220, 10240 and 10260 Old Columbia Rd. The portfolio, called Rivers Corporate Center, is 93% leased to such tenants as United Healthcare, Data Direct Networks, Applied Data Systems, Staples, Celsion Corp., Segami and St. Agnes Healthcare.

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