An Apartment Complex Teeters

" Investors who bought into the deal were confident that real-estate manager Tishman Speyer would be able to greatly boost profits by raising rents in Manhattan's sizzling apartment market. But today, the 56-building, 11,000-apartment property is suffering from a slowing New York economy, a lawsuit that has hindered the owner's ability to convert rent-controlled units to market rentals, and the debt load."