Not at all tech related, but my friend and I loan money for mortgages to people who likely wouldn't be able to get one from a bank. Mostly fix and flips, interest only, two year term. Make 12% on each one.
Because we've been living through a lengthy real-estate boom that will likely bust in the coming year or two. I'm sure you've kept that in mind, but that's the reason defaults have been rare.
I like the idea, however. How do you find your flippers?