Half the crew are driving company vehicles and receiving bonuses on top.  

When half of it is not relevant, they are less likely to come back.

In about two dozen states (half of the US) apparently there is literally no state issued general contractor license requirement (especially for new construction) and hence no requirement for the builder or owner to obtain such license either.

However probably half only need a little lipstick work if inspections come out on the better side.

The on-site companies usually take between 40%-50% of the gross profit.Now I'm sure you're thinking why in the world would I give someone almost half of my income to rent my property?

Can anyone point me towards an online calculator that will show how much sooner we would pay off our mortgage if we divided our monthly repayment amount by two and paid that amount (half of a monthly amount) every two weeks, instead of paying the monthly amount once a month?

I may have been listening to the podcasts too much (I'm through around half of them)I'm all for giving the current tenants a chance, but it seems like I have to just take them without knowing anything about them, no idea of how they were screened, their payment history, etc.This is just a duplex, is it a very common thing to sell an occupied unit (on the lower range, not 4plex+)?

The easiest way is to house hack again.

Depending on where you are, do this half a dozen times and you could have $500k-$1mil tax free in a decade or so. 

Your profit will be a little more than half, so on a $800k new build, you can expect to make $80 - $100k.