ATLANTA-After scouting sites in Houston, Baltimore and Pensacola, FL, the Mariner Healthcare Management Co. has expanded its corporate headquarters and consolidated its locations into One Ravinia, an 18-year-old, 376,538-sf office complex in Perimeter Center.

OAK BROOK, IL-Des Moines-based Principal Life Insurance Co. has acquired the two-building, 294,000-sf office complex on 15 acres just east of Oakbrook Center for $188 per sf. McDonald's Corp. leases all 79,820 sf of one of the buildings.

SAN FRANCISCO-The 10-story building at 550 Kearny St. in San Francisco's North Financial District is 98% leased. The seller was the Cahill Family, of Cahill Construction. The buyer is Bay Pacific Corp., an undisclosed Bay Area family trust.

HOUSTON-The portfolio will get its jumpstart with three office acquisitions: two in New York City and one in Washington, DC. The marriage is intended to be long lasting, with Hines in the driver's seat for property management and leasing after the deals close.