BiggerPockets also has a calculator to analyze deals, and I highly recommend you start this as soon as possible, even if you are not ready to buy.

@Kevin Wood: Fixed Asset Management module is included in the QuickBooks Accountant version where you can calculate the depreciation.

@Dav idWithout going through the numbers again, my guess is your calculation goes astray at the calculation of the Heloc costs.

Not all lenders are well-versed in these calculations.

BiggerPockets also has a calculator to analyze deals, and I highly recommend you start this as soon as possible, even if you are not ready to buy.

I'd be happy to show you around the calculators, I have seen people use the calculator results to bring to meetups and try to raise funds that way 

These guys are claiming they help people in my situation and in the same breath offer me a loan that I calculated out at 92% interest. there ya go.. 

You will also need about 6 months of reserves deposited in a traditional financial institution rather than a crypto account.The next step is to find the target property and calculate the acquisition costs and costs of construction along with the after-repair value. 

Tools like the BiggerPockets calculator and books like The House Hacking Strategy can guide you further.

A good baseline is to calculate material costs (e.g., $300 for paint and supplies) and add a fair hourly rate for labor.