Not sure if I am using the calculator wrong or if it always makes the assumption I am paying for rehab out of pocket, which is almost never the case in a BRRRR or flip situation. 

They made the ASSUMPTION that neither the  RR or the adjoining property owner (me) would complain about their use of the RR right of way as access to their cabin.     

I was working under the assumption that you would have the repairs completed (if you had repairs to do). 

As a safe assumption I would take the closing cost X2 and see if the numbers still work.

It basically helps you to gain confidence that in the near short-term assuming you hit your rental price assumption, you will not lose money.

I've realized that my assumption that the flipper will do the necessary value add to get that ARV is just an assumption as I've been surprised at how many flippers aren't finishing the basements (DUMB, DUMB, DUMB).

I feel like I'm not using a correct assumption with something. 

., CAPEX), assumptions...which is the same thing as guessing(vacancy, loan terms). 

I'm new to this so my assumption may not be correct.

I do enjoy the opportunity to be shown the light and proven wrong in my assumptions, but I have yet to hear a convincing, facts-based assertion regarding the impact of STRs on a community; on the other hand, I see greater influence of government on personal property rights under the guise of communal protection.