Its guys like him that make the good contractors lose work and good clients get bad work because they fight over when payment is due.  

I could be wrong, maybe you’ll still be able to squeeze out a small assignment fee, but more likely than not the agent will advise their client not to accept your offer because you don’t seem capable of closing.You are also in a tricky spot trying to market this property.

I know "awful" is subjective, but in my case I am still fighting with them to pay the property taxes that are now more than 3 months late on 4 properties, despite me telling them early on about the problem.

I also know there are openers that are WiFi capable so you could open them with an app remotely.

It's going to make it difficult to rent.Since there's no noise ordinance, I think your only solution is to fight back.

One thing is for certain is that you need a lender with verifiable experience with the 203k and a contractor who knows/understands the 203k and has the financial capabilities to afford the start up costs and ongoing expenses associated with the 203k, such as a Certified 203k Contractor. 

The buyer won't remember the $5K in a few years when they have seen their wealth grow, but I do agree you should fight for it anyways as long as it doesn't blow up the whole deal. 

No dog in the fight or any expertise.

Unfortunately in todays world most discussions are more like two three year olds fighting over a toy and people enjoy insulting each other versus having legitimate conversations

Biased but also capable of objectivity.