I don't get your point. First you ask a question and then you say not the obvious answer. Bitcoin and other cryptocurrencies are themselves and investment options how do you intend to invest in real estate in the world of cryptocurrencies one way to do that is to buy any company which takes investments in cryptocurrencies and further invests in real estate but these are ICO and cryptocurrency project. If there is a business which uses cryptocurrency there is no way SEC is going to give it approval to be listed or even the registrar of Companies wouldn't allow such transaction. Coming top donations I think it's best to donate to this forum itself as this is where every big brain in crypto meets. You can know more about it here https://bitcointalk.org/donate.html