The federal government says longtime Donald Trump confidant Roger Stone owes $2 million in unpaid taxes. And while the Department of Justice is taking Stone to court in a civil suit with no criminal charges, at the center of its case is a curious transaction: a $400,000 mortgage loan for a condo.

The government’s complaint lays out a complicated scheme. It describes the condo purchase as an overt act of fraud, and claims a right to seize the property. Essentially, prosecutors say, Stone and his wife Nydia used $140,000 from a private company they already held (Drake Ventures) for a down payment on a condo. Picking up the rest of the tab—almost exactly $400,000—was a mortgage lender.

That lender, a private individual who would only talk to The Daily Beast on the condition that we not print his name, said he had been misled and likely wouldn’t have granted the loan if he had known the full picture.