But I just want to know how accurate that statement is.

If there are different options where I could do a 10 or 20 year loan or a 7/20 year balloon or who knows what else is out there than that seems like a better option if my fears in concern #1 are accurate.

So if I only have a property address what would be the next step the fastest most accurate way possible!

Repairs are estimated at 6k But I’m not sure how to find accurate comps for a duplex that make sense on the asking price.

I don't want to cut them loose if it's true and accurate they only need 2 weeks.

If I could accurately estimate how much it would cost and it made sense, I would probably move a few walls to make the living room smaller and put a master bed bath where the kitchen and part of the living room were, but I think that would be crazy expensive, but maybe not.

I'm thinking of asking 3 - 4 contractors to give me an estimate based inspection report and then pay 2 of them to come onsite and have the specialists loook at it and get a more accurate estimate I can use to negotiate with seller. 

This has recently gotten more complicated as I've added partnerships and am now dealing with K1s which necessitate accurate balance sheets.

However, I personally feel you should never really on someone else's numbers until you have worked with them long enough to know how accurate their information is.

@Nicholas Arthur Hogan  You could do rough estimates on the utilities, however, ideally you would want to call the gas/electric/water company and get historical costs for that specific property so you can be as accurate as possible.