I personally have used Chase business checking and their credit cards that offer 15-18 months 0 APR.

Does anyone have advice or tips for me on what the best way for me to build my REI knowledge would be so that when I do have the adequate funds, I am already equipped with a very good base knowledge.

@Aashrit LuthraI'm based in California so I understand how difficult it is to find a rental property that is cashflow positive.

I would run this specific scenario by them, but based on the limited info above, I would say no. 

I am focusing on trying to find off market deals and working with creative finance since expansion is slow moving based on my salary, and I'm too impatient to wait for the duplexes to earn another down payment.Is there a financing option that I am missing to get a loan for a down payment?

From what it looks like Yardi is the name of the company and they offer different packages.

I am based in san francisco but pretty open to investing anywhere across the country - as long as it's a good opportunity in a good/profitable area.

Don't take offense if they reject your offer.

In your experience, is it common that tenant screening is not required by a landlord policy offered in the US/Colorado?   

Common equity often offers great returns, but during market corrections of 20-30%, your position becomes vulnerable.