The buildings are located in Fort Point Channel on the waterfront in what is considered the last of the city's development frontiers. Calls to Boston Wharf Co., which is owned by UK-based Peninsular & Oriental Steam Navigation Co., and HDG Mansur were not returned by deadline. Lisa Campoli of Meredith & Grew Inc., who is selling the portfolio, also did not return calls by deadline.

An industry source tells GlobeSt.com that the buildings are going for $92 million. The buildings, which total 386,000 sf, are fully occupied by Thomson Financial. Last year, Thomson gave Boston Wharf back 100,000 sf--rather than subleasing the space. The company also extended its lease, which was due to expire in 2010, another four years.

According to its website, the Indianapolis-based HDG Mansur Capital Group is the holding company for the HDG Mansur Group. The site says that the firm sponsors and develops international real estate investment programs for high net-worth individuals seeking real estate as an asset class in their personal investment portfolios.