OVERVIEW Although we believe demand for office-industrial space will remain weak over the next 12 to 18 months, we expect Government Properties Income Trust to post relatively stable operating results due to its tenant base of primarily U.S. federal and state government agencies. We assigned our 'BBB-' corporate credit rating to Government Properties Income Trust, an externally advised and managed, publicly held listed REIT. Government Properties Income Trust owns a portfolio of 55 office buildings (totaling roughly 7.0 million sq. ft.). The stable outlook reflects our expectation for this well-leased portfolio to maintain its occupancy and cash flow during the current cycle, and for leverage to remain low. NEW YORK (Standard&Poor's) Sept. 21, 2010--Standard&Poor's Ratings Services
