A billionaire's life is on the auction block. The fire sale includes a Gilded Age mansion and a 15-room NYC penthouse.

Miles Guo in his NYC apartment in 2017

TIMOTHY A. CLARY/AFP via Getty Images

• Miles Guo's homes, luxury cars, and private jets are being sold off in bankruptcy court.
• The former billionaire, meanwhile, is awaiting sentencing on fraud and racketeering conspiracy.
• Guo's properties included a superyacht and high-end real estate in NYC, New Jersey, and Connecticut.

Miles Guo's home these days is a federal jail in Brooklyn. His life was once dizzyingly more fabulous.