The only adjustments I made were adding a couple additional rows of data at the very bottom of each page to track what I paid in principal each month, and what my net cash flow after that was.

I add a single page up front with the fields contained in all the documents.

If you're looking for STRs on the beach, you'll have difficulty finding something that cash flows unless you can get optimal occupancy. 

The land is twenty acre parcel, which if we buy it, plan to hold it long term to develop either residential or commercial with partnership or cash out for retirement.

HOWEVER, I do personally make over $100k/yr cash flow from 16 properties here.

This InvestorLift requires an upfront $5k non refundable and looks to me like there is no option for inspections....curious what others take on this site is.Thank you in advance, I'm fully committed and learning daily...love this site and it's members

Are you cash flow positive on the rental at the moment with that rate? 

Better yet cash out refi? 

My main concern is the limited cash I have available for the down payment and renovation costs.

My strategy would also be going for more price appreciation than cash flow.