BP Family,I’ve always loved only handful of things, two of them are Florida and Real estate, so I want to combine them both. 

(let me be clear though, I do HIGHLY recommend rewriting most or all of the content eventually, changing the design a bit to make it unique, and adding your logo)Lastly, just don't think because you have a Carrot site, motivated sellers are magically going to find it and give you their info.

This calculation can take that expected growth and growth in cash flows combined into one metric to look at the investment.Personally, I don't really look at IRR because it is a highly manipulated metric.

Does it make sense or is it even possible to combine the househacking strategy with the BRRRR strategy?

Rinse and repeat until you have reached your 20k/mo goal with a combination of rental income and 4% stock withdrawals. 

I used a combination of owner financing and commercial lenders.

I know that Farmers allows you to combine up to 34 with their Foremost line. 

If you can't get the financing or that's not what you want to do long term, then you could sell 4 and perhaps use the cash from those to self fund the 5th or some combination of that.I think it all depends on what cash you have, how much you want to spend, if you need to borrow money, and if you want to be a long term landlord.

Currency risks, political risks, economic risks, corruption, language challenges, unique laws that can change depending on how the locales use them or call it, bribes, etc.  

Combine the out of pocket money with scheduling multiple drops and pick ups, it's a pain.