The owner had a financial issue he needed help solving and I'm just providing the solution.

This is the number one reason why we are looking for other solutions. 

Also those of you in the NE area if you know good, knowledgeable, reliable contractor that installs metal roofing please pass along their info.Any input, experience would be great!

Top loading washers are more reliable and they clean better, but use more water.

Best solution overall would be to marry the properties back together.

I have a reliable mode of transportation.

She did seem to understand that it was not up for discussion so I let her know that if she did not like my solution and couldn't get in line with not slamming doors she could leave. 

If he so agrees on a price that I pay for getting out of this, how so should I approach on legalizing it between us to show that he has accepted a different solution to null the contract?

I may have a creative solution for your concerns.

It's difficult enough to explain to a common homeowner in a way that assures they know what they're getting into, not anger the lender, ensure you get an end-buyer that pays reliably, and keep the whole house of cards up until getting out of the deal.