If your policy is based on Actual Cash Value (ACV) they take the Replacement cost and subtract the depreciation.

One thing you must do is if anyone that tells you'll can get X rent for a place; subtract at least 25% from that, run the numbers and see if it still works cash on cash wise.

Anything to add/subtract? 

If there is a 200k repair, you subtract that from the number you land on after 70%. 

Then measure the garage length and width, and subtract that from the overal number you got from just now and that is a good enough square footage of the house.Lastly you can again via google maps, fond the neighbor's house and find their square footage on zillow or something and just eyeball their size compared to yours and you have a reasonable estimate on the square footage of the house.There you have it!

@Sarah Davis what is your ROI after subtracting costs of: utilities, taxes, insurance and maintenance?

Subtract the repair costs5.

The payments are calculated into the CF since the money was used for this property, however, if this loan was not collateralized by this property, you don't need to pay it back if the property was sold, so the profit you could pull out of the property would not have to subtract the balance of this loan from it. 

Most people simply use the 50% rule and then subtract out P&I for a quick analysis. 

I would start by running comps then subtract rehab cost +15% just in case. and offer them 70% of what the left over # is and settles around 80% but not more.  $$$$$$ comps -rehab cost +15% ______________XXXXXXXX  multiply by .70 to get an offer price and try to stay under 80% but as close to 70 as you can.