The property has a new bathroom, kitchen, water heater and heating (two years old) he also added a new privacy fence and waterproofed the basement.

She demanded much more be done, such as totally refinish floors, replace historic french doors etc.

@Jake Islas  pretty basic when it comes to investing the 4 door rule and the 5 door rule don't say that to any agent you run across they will know your a little green.1 to 4 banks look at as resi type loans... 5 doors or more are commercial.. generally speaking unless your a very high w 2 wage earner or very cashed up 1099 earner more than 4 resi loans is tough.once you pop into 5 doors or more and commercial the financing becomes completely different.All agents that do commercial real estate are investor friendly that's all they do.. so you don't need to specify that again showing your experience level is important if you want the best agents working with you.. if the commercial agents even get a wiff of a newbie your not going to be dealing with the best ones.

As far as experience goes I bought my first mobile home last year and have had a few repairs and replacements done such as electrical, bathroom sink, etc.. 

The bathroom doesn't have a vent so it gets moisture building up.

The work will be just some painting, carpet cleaning, fixing doors and doing some other touch up when seller move out of the house.

You have to dig through stuff but you can save a ton on trim, doors, and fixtures. 

Is there anything I could do or offer the seller to increase the likelihood of the transaction going through?  

In October 2014 I opened the doors of my executive suite business.  

I'm sure it'll open a lot of doors for you.