I'll tell you what I do know, and at work (a big bookstore) I'm held to be a superior salesman, but it doesn't matter, I've done the same at a home improvement store, a marketing firm, and several printing outfits. I'm good with customers.

You need to illustrate (power point slide shows really doesn't do this very well, I'm afraid). My first decent writing teacher used to say, "show, don't tell." So put names to people (could be imaginary people) and tell them a story (Maxwell & Dickman, The Elements of Persuasion - excellent book about story creation), show them by illustration how the capital partnership works and how your audience benefits. How the renter benefits, how the investors benefit, how the property owner benefits, etc. What does everyone get out of this?

Don't dwell on the mistakes of the current banking system, or why it's irrelevant. those are negatives. Always be positive, and you can because your system offers benefits, right? Insulation from global banking crises? Flexibility and freedom? A stable domestic economic situation? Strengthened communities? Better healthcare? She gets the house, I got the equity? Whatever. That's up to you.

You already know how to have fun with this. I saw. :)

"It Can't Be Just About Us"
--Frank Schnittger, ETian Extraordinaire