I know this is the most crucial step so I don't want to leave room for error, especially for my first purchase.

I apologize for a any typing/grammatical errors, I am responding from a cell phone. 

So stop assuming we are all rookies and don't know what we are doing and you can do our job better etc...

The UW will then counter the loan as an investment property and require 20-25% down or counter it as a second home with conventional financing with a min down of 10-20%.This is what will happen if a loan officer submits the file as suggested above.It would have to be a pretty rookie mistake by a loan officer (LO) though to submit a file with out the property explanation and documentation because it would not put your file in the best possible light and achieve what you've intended to achieve.Is it possible for her to get a primary residence ?

So I would expect for the seller to tell you to take a hike, and you wont have to worry about your offer.Regardless of the repairs costs, unless you have reason to expect the appraisal came to the value in error (bad comps, errors in the specifics of the property, etc), than the $340k number was never going to happen.Sounds like the property has multiple problems, and it sounds like your not an expert at spotting these and have to rely on contractors, I would recommend you run from this property.  

My error, thanks Jay and apologies to Engelo too!  

@Scott Taylor   E & O = Errors and Omissions  insurance.. virtually every realtor has it.and if you make a monetary claim against a realtor they usually turn it over to the E & O carrier if the claim is sufficient enough.. many of these policies have 5k deductables.Also in most forms and we are going through this right now on a deal I am the seller on in PA were the buyer literally backed out day of closing and wanted their 10k back.. and of course I told them no greaking way.. so we are going to mediation.. and mediation is cheap there only 250 an hour.. the buyer has not appointed an attorney and my Agents will represent me..

That said, it's possible that it was cooked there by some rookie using a recipe off some website. 

I forgot to unplug the stove and the stove-clock gave some error code and audible alarm.

@Mark McGarryResponding to the errors in the prior post.