Minimum down payment question

[Ryan Fischer]

Hello everyone. 

My current rental properties were both financed with hard money, before paying them off low enough to get a HELOC and simply put the balance on there.

I'm now interested in purchasing an additional rental property (4-plex) through a traditional lender, as the 10% interest rate is crushing. 

With that background, my question is simple - What is the minimum down payment most lenders require to purchase a 4-plex? (725 credit score, good income).