Then subtract about 10K from said ARV (depending on the price range).Then get a solid COR.Then find out what your buyers want in profit.

You can only subtract costs from their deposit not caused by wear and tear.

So, for a given tenant, once you fill out an Request for Tenancy Approval (RTA), the authority will take the tenant's approved affordability for rent plus utilities, subtract off the estimate of utilities for your house, and then come up with an amount of rent that is affordable for that tenant. 

In the closing statements I’ve seen the seller never even handles the money that’s going to the realtors, the title company subtracts it from the net sale and makes checks out to their brokerages. 

Then, start subtracting monthly expenses like: cleaning ($500+/mo/unit), - the rest is nothing compared to this item.

This leaves a $60,000 split that you would subtract your commissions, taxes, holding/closing costs, and other miscellaneous or unforeseen fees/expenses from.

You want as much historical information as you can get but at a minimum t12, rent roll, tax returns etc.The owner finance portion is equity so calculate the NOI and subtract  the payment for owner financing and the debt and hopefully you still have cashflow.

And will add or subtract based on the level of finish.  

However, if you haven't subtracted your "true costs" yet, do that first and if the projected amount is to your liking you may have a deal. 

And when you subtract the balance owed that's still a nice spread.