Hi Dan,
With all due respect to Brandon, I would suggest put more focus on finding a great deal. From personal experience, every time I found a great deal it's easy to find the money to buy it. It is the deal that will bring the money.
For example you find a 4-plex with 2-beds each unit in Greenville, SC. Median rent in the area is $1k per unit. That's $48k per year GOI. If let's say expenses is 45% of GOI (including 5% to cover reserves & vacancy) this will give you $26,400 NOI ($2,200/month) If you pick it up for 10% CAP, your purchase price is $264k.
If you borrow 20% from a private lender ($52,800) and pay 10% interest/yr that would be $5,280 or $440/month (interest only payments)
The mortgage on $211,200@5% interest 30 yr. is $1,134./month. Your total debt service combined is $1,574. $2,200 - $1,574 = $626 net cash flow; $156.50 profit per unit per month.
If you get a deal under contract similar to this example, it will not be hard to find the money to finance it. Start going out there and looking at properties, calling FSBO, attending your local REIA in addition to working with Realtors.
When you walk in to a bank and say you have a property under contract, you're putting down 20% on a purchase price of $264k. They will leap at the chance to work with you.