My First Deal - Financing Options?

[Jeremiah Green]

Hi BiggerPockets Community! My wife and I have decided that real estate investing is going to be the wealth building avenue for our future. We are ready to purchase a duplex or triplex in the Midwest but need advise on how we should go about it.

Here is our situation. My wife nets $52k as a critical care nurse, I have K1 income of $40k - $50k a year from my window cleaning business. We have no debt, no kids, and rent a condo in Phoenix, AZ. We want to begin purchasing multi family properties in Illinois where we are from. 

Do all banks require 20% down? How do I find a bank that is ready to partner with us to buy multiple properties over the next 10 years?