A common rebuttal to this is that some people think your time is better spent managing the deals and rehabs instead of spending time doing the repairs yourself (which I don't disagree with), but I believe if you get your hands dirty at least once you will be a much better BRRRR practitioner- able to see where profits can be made and corners can be cut. 

I've been deliberating over the same issue (long-term rentals vs. medium-term rentals) and am inclined to invest the extra effort to manage a medium-term rental, given the appealing additional cash flow it promises.

As buildings of this sort become common, what will happen to the demand for traditionally-constructed housing?

Additionally you want to model out a vacancy period at the end of each lease term, to be conservative. 6-12 month vacancy factor is common.

My house is on a corner with an empty lot next door, so it was not an issue for me.

If I cashout refi one property , that would resolve my debt issues, but I'm torn.

So far the issue is no PM wants to actually handle leasing the property with the option.

We've had issues with Mario and his various business ventures. 

By carefully vetting potential tenants, you can mitigate the risk of late payments, property damage, and other issues that can arise from irresponsible renters.

To use as a 3 family, there would have  had to be a use permit issued and a rental license active within the last 3 years.