@Spencer Bowen you are correct it is 40%. I calculated it really quickly in my head and got the wrong answer. So, just to be clear, I'm an investor, not a builder/developer. I don't go out looking for deals so I don't spend a lot of time analyzing deals on a daily basis like the other guys that I mentioned do. When they come across good deals they will contact someone like me to help fund it. At that time I will take a look at it and see if it makes sense. If they came to me with the one you mentioned I would turn it down because, like Rich said, it doesn't have enough room for margin for error. BTW they wouldn't offer up something with that slim of a margin. That's why I suggested you talk to those guys. They will help you understand what constitutes a good deal so that when the time comes it will have a good chance of getting funded by someone like me. Or you will be able to wholesale it and make some quick money.
Good luck,
Julian