Secret Money: How Trump Made Millions Selling Condos To Unknown Buyers.
A BuzzFeed News review of every sale of a Trump-branded condominium in the United States provides the first comprehensive look at how many went to unidentified buyers who paid cash, an indication of possible money laundering.
BuzzFeed did a good article outlining money made by Trump but gave no proof of money laundering.
https://www.buzzfeed.com/thomasfrank/secret-money-how-trump-made-millions-selling-condos-to