I find this a very interesting idea. Using Contracts on the STEEM blockchain 0.001 JAHM is needed to send a contract that can never be tampered with.
I know people who pay shittons of monies to do excactly the same, where the middleman runs with a shitton of money just to be a witness of a contract. This is now available for basicly free. There are huge opportunities in that space. Great article about blockchain to seal record contracts using Jahm