My guess is that he is a entrepreneur that has started up rental investment properties opportunities available to the dimwitted enough to not buy a home and put capital management under Grant Cardone.
Paying rent makes some other family rich.
Now I have bought, I have rented and I have been a landlord. Renting is pretty easy because all you have to do is give them money and they take care of everything. Of course the corollary is that you are not allowed to do any number of things. Including decide what kind of window shades you have. The people who think it means you can just leave the rental at any time are forgetting about rental agreements. You are stuck for a year unless you want to pay some pretty stiff penalties.
Owning is more complicated but has greater freedom for personal expression (as long as you stay out of an HOA). You can redesign the entire house if you like so it fits you.
Being a landlord is a pain for the amount of return you get. Because they are just giving you money and all the problems are yours. Property taxes which are quite high, income taxes, repairs and any conflict with neighbors. You are doing all of this and you do not even get the benefit of living in the home.
If you live in the area and you are capable of doing a lot of the repair and maintenance yourself and you are able to get reasonable renters you can get a return of a couple hundred dollars a month from a unit. If you have more then three you will have to accept section 8 with all the headaches that brings. If you have less then three you probably will have a passive income of around $900 a month.
Which is not hay but it is not exactly great.