A New York real estate investor is looking to cash out on seven downtown office towers that could collectively fetch around $1.4 billion, according to a source familiar with the offering.

AmTrust Realty has hired the Chicago office of brokerage Eastdil Secured to sell its entire portfolio of Chicago office buildings, which Eastdil is marketing as the Chicago Legacy Collection.

Among the properties listed for sale are two towers in the Illinois Center complex in the East Loop: the 45-story building at 111 E. Wacker Drive and the 32-story tower at 233 N. Michigan Ave., which AmTrust bought in 2015 for $376 million.

The rest of the 6.3 million-square-foot collection includes 135 S. LaSalle St., a 44-story building that Bank of America will vacate next year when it moves to a new namesake tower at 110 N. Wacker Drive, as well as buildings at 1 E. Wacker Drive, 30 N. LaSalle St., 33 N. Dearborn St. and 33 W. Monroe St. AmTrust spent more than $1 billion acquiring all the properties.

AmTrust aims to sell the buildings as a portfolio but is open to selling them individually, a source said.
Spokesmen for AmTrust and Eastdil Secured couldn’t immediately be reached.

AmTrust is putting the properties up for sale amid strong demand for office space downtown and lots of coastal investors looking to Chicago to find value in office deals. Thanks to companies going on hiring binges and flocking downtown, office vacancy in the central business district has remained static at about 13 percent the past couple years even as big new towers have hit the market.