Greg Murphy's offers to homeowners

Okay, my question is this: I was watching Greg Murphy on a video and he said that he has a seven step system for cash flow and that he tells his homeowners who are facing foreclosure that he will go in and pay back payments, make monthly payments, do repairs at no cost to the homeowner. I believe he then signs a purchase or lease agreement which allows him 30 days to the property to market or do repairs and in this time he tries to find an end buyer, but if he doesn't he does the above of taking over the debt. He later says if he can't find a buyer then he doesn;t do the deal. I know I have something mixed up here, because it sounds like he never lets the buyers down and if he doesn't find a buyer he takes over payments, but how does he do this with no money and always find the buyer for a property without letting the ball drop? Thanks for any help.