The obvious problem is the trust issue: legally the property belongs to the coin issuer, (s)he could just run away with the money. But that would be the risk associated with any kind of crowdfunding, wouldn't it ?
Has anyone tried doing it? How did it go? What are the potential or real issues?
That would be a good idea if you do it solely for yourself but if your asking some money to do it then it maybe suspicious act to do since people would provably wait for long time before the real estate properties price will rise and we didn't know on where to reach you up since we didn't know you personally aswell as we didn't know if you really buy some of it. So for this inquiry might better if you think for yourself and don't ask for funds since its not a good idea mate.