BRRRR: 20% down? Is that even possible?

[Daniel Mendez]

Good evening BP,

So I hear a lot about the BRRRR strategy but it seems like all the stories I have heard are people using this strategy by purchasing the whole property.

Has anyone used the BRRRR strategy with only putting 20% down?

If so, can you provide a few details? 

My biggest dilemma is how do I make sure that when I refinance the house, after putting 20% down, my new mortgage payment won't be higher than the rent.