The partnership behind the failed Foxwoods Casino project in South Philadelphia filed Monday for bankruptcy court protection, citing claims of $23.6 million from 14 creditors, Philly.com reported today. In addition, Citizens Bank, the largest creditor, is owed an unspecified amount, according to the court petition. The partnership last week sold its largest asset, a vacant 16.5-acre lot on South Columbus Boulevard between Tasker and Reed Streets. The property was transferred to developer Bart Blatstein for $13 million. Of the proceeds, $8 million went to the City of Philadelphia to settle a tax bill.