You’re not investing into property on a “slapped up website”, but you are buying RE through them as asset managers. Your name is on the deed and the money is flowing through notaries and lawyers and everything that’s stipulated in CH. Their ultimate business is management of the buildings forever, plus the initial honors and revenue of getting the deal done.
If you as a co-ownership collective don’t like foxstone, you can vote to kick them out on the first annual gathering.