So you have no valid collateral. The chances of you just blowing this $200,000 and taking a chance someone will sue you is pretty high. :/
I will take my chances... but first; whomever will be down to do business with me must have an evaluation window. I mean, see what my business is all about and test waters with whatever least amount they best feel to invest! If Profits start rolling in within 2 - 3 days; then he'l be welcome to invest the rest.
And giving out a Negative Feedback based on a "Newbie asking for $200,000 loan without collateral and guaranteeing a return. " is Totally Uncalled For; RUDE AND SELFISH. All you had to do is PASS.