CHICAGO — A partnership between Chicago-based Sterling Bay Cos. and The Deitcher Group has acquired the former Chicago Housing Authority headquarters, an eight-story, 107,977-square-foot building located at 626 W. Jackson Blvd. in Chicago’s West Loop. The new owner plans to complete major capital improvements to the property, which will begin in the second quarter. The property was acquired from the Chicago Housing Authority. Leasing of the property will be handled by The Deitcher Group. The acquisition price was not disclosed.