That's barely different than lottery schemes I've seen run trying to sell houses (typically illegal). Apparently this is acceptable though, because it's a "contest"?
/eyeroll
There are lots of ways to own property, but I wouldn't go looking for rare one-offs like the above.
It just seems that, if your income is modest, it is tough to get past those first 3 or so rentals.
I think the opposite, personally... 1-3 is hardest, but if you have the discipline to save up to buy those, and if you've bought them right, then the savings habits + the income from those snowball into more, and more, and more. :)