I would also compare what kind of high-quality rentals you can get in your area and what their cash flows are obviously. 

If you just patch it up, so the condition is comparable to other properties your repair cost will be lower and then you can multiply with .8 or a bit more.Good luck!

Our beaches can’t compare to HI, but VA’s investment ratios will trump HI’s all day long!  

As a result the EBITA (earnings before interest taxes amortization) multiplier for selling/valuing a brokerage shop is VERY low (compared to a buying a manufacturing company for example). 

@Melanie HeigesOkay. that makes sense.You have a few choices for flips:your own cash, or cash pooled with other investors.hard money or similar private lenders.You don't typically get a traditional bank loan for flips due to the condition.So, you would either get hard money loans that will lend for distressed properties or use you own cash.Hard money lenders base their lending on the project, not on your personal finances.

It equates to significantly lower returns when you compare it to you how much you had to put into it.

Quick execution, fewer hoops to jump through compared to banks. 

If it is listed for rent, compare the rent to the surrounding listings.

The tool would be able to do myriad analysis to evaluate the deterministic analysis such as margin of safety, probability of a return, maximum buy price given a certain probability of a return, and calculate the opportunity cost comparing this investment to an equal investment in an index fund.Does anyone think a tool like this would be useful and beneficial or do you think it's more of a waste of time?

Understand the fees involved and calculate the total cost for an entire year of management so you can compare the different managers.