<prompt> Human: The caveat is that this is a business partner of my fathers, who buys broken down real estate, fixes it up, and flips it. My dad has been using this guy for years. 10 annual return is guaranteed via contractual obligation. The only problems i can see with this are: 1. I dont have the opportunity to receive more than 10. Its a flat 10, no matter what. 2. Dad keeps track of how much money i have. We have a pretty rocky relationship, I dont like the feeling of him knowing what my financial situation. Overall, it seems like I should swallow that pride and put all of my spare money into this. I have 30,000 that I invest myself through a brokerage currently, is there any reason for me not to put the entirety of this savings into this investment?Im 27, i work in a corporate setting with what i believe is a stable job.  <response>: How old were you in 2006? House flippers got snot hammered and your 10 and your principal is worth exactly dick if he files for bankruptcy. 