The wide-ranging litigation, alleging fraud, relates to Crown's failed $US250 million ($A240 million) investment in Fontainebleau – a 63-storey Las Vegas "destination casino resort" which filed for bankruptcy in mid 2009.
According to Fontainebleau's lenders, an estimated $US400 million worth of cost overruns was hidden from them in order to keep financing flowing.
Money was drawn against the loan from that date until April 2009 when Bank of America as agent for the lenders declared default under the loan agreement.
Two months later Fontainebleau filed for bankruptcy. The incomplete shell of the 63-storey building remains an eyesore on the Las Vegas skyline.
According to court documents, by mid-2008 Fontainebleau's main principals had allegedly calculated the project was $US300 million over-budget, but did not inform the lenders as they were obliged to do.
Banks who loaned around $US800 million to the failed project have targeted Crown with the allegation that Crown defendants "agreed and conspired with the Fontainebleau defendants to continue to misrepresent the financial status of the project" when Crown allegedly found out about the cost overruns.
The allegations have come to light while Crown's Macau joint venture, Melco Crown, has been embroiled in an investigation by Taiwanese authorities into allegations that a subsidiary illegally circumvented the country's tight foreign-exchange controls to allow high rollers to funnel $170 million of gambling funds to Macau.
The head of a Melco Crown subsidiary, MCE International, has been questioned by prosecutors and was released on bail.
The Victorian casino regulator says it is "actively monitoring" the investigation by Taiwanese authorities while it undertakes a mandatory review, which it conducts every five years, to ascertain if Crown continues to be "a suitable person to continue to hold the casino licence".