Nope, I wouldn't give that piece of shit a dime of my money, even if I thought I could get some ROI bucks. Everything he touches is a scam... sorry for your friend, what a waste.
There was a story out today about how he scammed the IRS out of 100 million dollars on his Chicago tower. I know a couple contractors who would gladly be lining up to get their piece of that back.
If it's true, do you think he'll get the Hunter Biden treatment? I highly doubt it. That prick skates on everything.