BOSTON-Batterymarch Financial Management Inc., an independent subsidiary of Legg Mason Inc., extends its 24,128-sf lease in the John Hancock Tower on a long-term basis. The 60-story tower was put on the market a few months ago along with two other buildings in the Hancock portfolio.

MIAMI-Scott O'Donnell's new position is vice president in Trammell Crow Co.'s Southeast Investment Services group. He was previously a senior associate. He joined Trammell Crow from CB Richard Ellis in April 2000.

WASHINGTON, DC-Some 400 real estate leaders descended on the Grand Hyatt here for RealShare DC, and a look at how the local market is fairing against other, more troubled CBDs.

HARRISBURG, PA-The Columbus, OH-based REIT pays $5.5 million, or about $14.76 per sf, for an outstanding 50% joint-venture interest in the 745,394-sf enclosed regional mall near here. The mall has a $34.3-million mortgage at 7.73% interest, which matures in 2007.