There was only one qualifying single property office investment sale in the second quarter according to Reis Transaction Analytics, but it was a big one at $110.7 million.* MetLife Inc. sold the 1.05-million-square-foot Fifth Street Towers in Minneapolis to Fifth Street Towers Investors LLC in April for $106 psf. The rolling 12 month cap rate was 8.4% as of the second quarter, down from 8.8% the quarter before but similar to prior readings.