Grubb & Ellis Co. [NYSE: GBE] lost $5.1 million in the second quarter, joining rivals CB Richard Ellis (NYSE: CBG) and Jones Lang LaSalle (NYSE: JLL) in watching earnings take a hit as a result of the commercial real estate and capital markets slowdown. Grubb & Ellis said the quarterly loss reflects property charges and $4.7 million in integration costs related to its reverse merger last December with NNN Realty Advisors Inc.