By Blair Kamin
| The developer of Aqua, the boldly undulating Chicago tower that has garnered architectural acclaim, looks to be on the verge of filling a major economic gap inside the 82-story skyscraper.

Jim Loewenberg, the tower’s developer and architect of record, said this morning that a hotel has signed a deal to occupy Aqua’s hotel floors. An announcement will be made by the end of this week or early next week, he said.

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