On Grant Cardone, he owns a few newer apartment complexes where I live in PCB. They all have signs that say ".... a cordone capital property...." and/or are named "10x Living at ...." I can't imagine those names attract residents?!
It's all public record in Florida, and I did look up the sales when he first purchased here which at the time seemed like crazy high prices. I can't remember details, but it looked like he would buy in one LLC and sell to another that was his syndication for quite the markup. Those transactions, along with his management fees, and poor payout structure for his investors lead me to believe he makes a ton off of real estate. Probaby more than the 'education' seminars which are probably expensive to put on plus all the fees for his high profile guests.
Funny to note that I recently overheard one of his tenants complain about rent increases when picking up my mail, and this tenant told me that Cardone frequently leaves fliers outside their doors fishing for investors. I thought that was pretty tasteless, plus it leads me to belive he makes his money on the backs of the small investor that doesn't know they are in a subpar investment.