CAMBRIDGE, MA-Lexecon leases 21,550 sf at Charles Square, 20 University Rd. The economic consulting firm signed a four-year lease for space in the Harvard Square building, which is owned by Carpenter & Co.

BOSTON-The Greater Boston Real Estate Board appoints Thaddeus Jankowski as its new CEO. Jankowski is replacing Edwin Shanahan, who left the position at the end of the year to start his own lobbying firm.

CAMBRIDGE, MA-Viacell Inc., a cellular therapy company, signs a long-term lease for 42,944 sf at Cambridge Science Center at 245 First St. The building is in the process of being converted to biotech use.

CHELSEA, MA-Corinthian Colleges leases 30,527 sf of space at 70 Everett Ave. The 108,000-sf office building was recently built by ACS Development Corp. and is the final addition to the three-building Harbour Pointe Park.

AYER, MA-Resource Alliance relocates from 20 Authority Dr. in nearby Fitchburg to One Sculley Rd. with its lease for 24,450 sf. The building is part of a three-building, 81,000-sf complex.

CAMBRIDGE, MA-The Bulfinch Square office complex gets a $5.3 million loan. The 26,000-sf building is located at 43-47 Thorndike St. and is currently occupied by fourteen different tenants.

NEWTON, MA-HRPT Properties Trust increases its public offering from 25 million shares to 30 million shares. The locally based REIT priced the offering at $9.89 per share and says it will use the proceeds to pay down debt.

NEWTON, MA-After nearly two years of fighting, Senior Housing Properties Trust and its affiliate, Five Star Quality Care Inc., settle pending litigation with Marriott International Inc. and Sunrise Senior Living Services Inc.