If the repair costs are more than what was originally stated by the owner, you have the right to re-negotiate the price.I hope this helps

Some people get credits and some people have to walk away because they won't negotiate.

I know everyone on the buyer or seller side does not like to negotiate after the deal is signed and finished.   

It seems like it would be better to hire a specialist for this that does workouts all day long and knows the best ways to negotiate things.  

I've got recorded calls I post for my members demonstrating how I've done it in as little as 25 minutes with one phone call to then create instant cash via down payments of no less than $10k, cash flow, and back end profit when the buyer refinances and the total cost of the deal is $10 for good and valuable consideration so I have a legal and binding contract, 25 minutes to several hours on the phone negotiating the deal with the seller and the monthly cost of Docusign or Rightsignature so I can get the docs signed electronically because I do these deals all over the U.S. and never see any home or meet anyone. 

Until you have several properties, I don't believe you're going to have the bargaining power to really negotiate a much better rate.

Why not negotiate a discount on the sale and then convert to oil with the savings?  

If you hire a real estate agent insert the disclosure in the listing agreement and make them aware of it, and then when negotiating the sale insert a paragraph in your response or if you accept; write an acceptance letter with a paragraph identifying the encroachment of the fence into neighboring land.

I need a lawyer who can negotiate and hopefully clear a 2nd that was a MERS 2nd (bought house in 2005) and now, no clear loan servicer. 

Here are the numbers:Initial asking price: 48,000-Little maintenance done on the house in the last 15 years, poor location, and low current rents helped me negotiate a lower price.