So far, Mr. Trump has lined up buyers for a bit less than $600 million of condo units and condo-hotel units in a residential market that has virtually seized up. Yet he owes lenders as much as $1 billion when the loans are due, according to public records and several people familiar with the project. He has closed around $200 million in sales so far, with roughly $380 million still in contract. The retail portion of the giant building is for sale, at a time of rising vacancies for retail space in Chicago and one of the worst eras for retailers in years.

...So far, Mr. Trump has lined up buyers for a bit less than $600 million of condo units and condo-hotel units in a residential market that has virtually seized up. Yet he owes lenders as much as $1 billion when the loans are due, according to public records and several people familiar with the project. He has closed around $200 million in sales so far, with roughly $380 million still in contract. The retail portion of the giant building is for sale, at a time of rising vacancies for retail space in Chicago and one of the worst eras for retailers in years.