Try technique that doesn't risk your credit and assets.Like the rest of us investors, it's training.

If that doesn't work, go to home depot and rent a pressure washer and get a commercial degreaser for oil stains

And doesn’t it have to be your first property? 

If it doesn’t Cash Flow you are wasting your time.  

That doesn't seem to bad to me considering the age of the house. 

Doesn't matter currently, as it will sell either way and you wont get more for a metal roof.

Now we have a family member that can give us the money for 20% down and closing but she doesn’t want to be a co signer.

We remodeled the house, fixed it up, had it treated for termites, and then made it into one of my best rentals...but of course the story doesn't end there.We treated the wood but the chemical today used isn't like it was years ago.

You'll get alot of information that doesn't appear in the official content. 

It doesn't really matter who pays but both are responsible.