So if a tenant pays early for 60 consecutive months and is late on month 61....the landlord might lose ?  

@Heather R.

Thanks @Tawantis R Monroe!!!  

@Matt R.  

He was the second appraiser, my original appraiser that is proficient in the valuation of solar property got 3 strokes in 3 consecutive months and wasn't able to talk or write.

We would really need to know your full financial picture including interest rates to advise properly.You may want to consider asking here for an alternate viewpoint: https://www.reddit.com/r/personalfinance

@Vivek R.  

NPV=R*(1-(1+i)^n/i )- initial investmentIn the above formula,R is the net cash inflow expected to be received in each period;i is the required rate of return per period;n are the number of periods during which the project is expected to operate and generate cash inflows.But most folks use the spreadsheet to make life easier (see below)Account Closed,  see if using a spreadsheet makes it a bit more clear. if you NPV is different you are probably using a different discount rate, so check that.

Marcos R.

Originally posted by @Matt R..