I want to expand my portfolio using other people’s money?

[Kelly Waite]

I have just bought my third rental property, all purchased within the last three months. I was able to negotiate three great deals, two of them for nearly half of the market price. All were purchased cash and I have no more money to buy more but know I have to skills to make some more deals. How do I go about finding investors/help/financing to expand my portfolio, ideally moving to multi family units?