The first year is probably the most crucial year, as you will need to calculate the cost basis in your rental properties, which will influence your depreciation expense on Schedule E.

For calculators we have our own internal calculators

concerns about safety/fraud , taxation etc...https://cocodevelopmentgroup.com/boulevard-villa-bali/PDF of payback calculations   https://drive.google.com/file/d/1FQca4xOb7Dgxy9o5-UP8wvXuZCo...

I have been able to find deals in the current market using the BP calculator that fit my buy box, but when I see that homes in that area are estimated to be ~30% overpriced and am watching in real time prices drop it leaves me unsure what to do.

Sorry to hear about your loss.Make sure that you calculate the step up in basis as you inherite the properties.

How do I calculate that?  

I'm looking to dive in and learn so I've been just trying to practice underwriting lots of deal as best as I can to calculate the cash on cash returns and DSCR ratios. 

In most cases, parental income is calculated in its entirety.

VA (and conventional for that matter) will calculate all the above off your tax returns.

The only downside of using a commercial line to try and match the AIO loan is that I have to manually move money into my line of credit(LOC) and sometimes ACH payments take 2-3 business days unless I wire it in and even that might be the very next day.I basically pay down my line with everything beyond my min reserves + savings.The advantage of the AIO is it automatically sweeps over your balance in your checking account (provided with the AIO loan) and pays down your loan with any idle cash each night at 12AM and calculates daily interest based on that reconciled balance.