I used the BP calculator and set the variable expenses to 5% besides management. 

So I still getting an increase of cash flow regardless mainly because the only major variable was the taxes on my rental costs. 

I'm definitely in a try to pay down any floating rate debts ( variable mortgage, heloc, etc) as much as possible and wait and see mode.

That computer does not know the size of rooms, layout, noise levels, condition of the yard, smells, paint colors, or the other 72 variables that impact a renter's decision-making process. 

There is too many variables in seller handling insurance, for example what if seller gets a ACV policy at bare minimum to cover himself, then you have a claim, next thing you know claim payout is only 48% of actual costs to complete the repairs.

Unfortunately no there isn't, as there are too many variables such as:.

Also accept payments through Cozy from tenants if they have no monthly variable costs (like utilities chargeback) and want rent auto-debited from their checking account.And, Google docs for EVERYTHING.Overall, the single best process thing I've done has been - without a doubt - adopting Quickbooks Online.  

I'm assuming Tim's "formula" he mentioned figures in the other variables I've noted and maybe more. 

There are just too many variables to consider.Your IRA can invest in a short term rental, but there are challenges.  

It is convenient to have all your loans with a bank you like and have a good relationship with, and I wouldn't want to exchange the 5.5% rate on the $48k for a higher variable rate HELOC just to get an extra $10k cash.