Also, if you ever get to court, I'm guessing his claim will be thrown out immediately because he is unlicensed and you will get a chance at a counter claim.Make sure you are reasonable in what you calculate your damages at. 20 days is not an unusual delay for any type of construction work and if your contract with him didn't have liquidated damages listed, I doubt you can get reimbursed on a per day basis.What was the total original contract amount?

Calling 200 banks is not unusual for most investors.  

That's pretty unusual to me, but nothing too high that I noticed.

Suggest better underlayer using acoustical and moisture materials.While Vinyl is very tough and affordable, people will catch on that they used recycled vinyl (car interior) and limestone.

The property has 1/2 an acre of land (typical for my neighborhood, unusual for our TN metro area) and is fairly updated with a wood fireplace, granite, hardwood, crown molding, and a newer roof/windows/doors.

Have your lawyer review the title insurance binder to make sure there are no unusual exceptions to the policy. 

 I love the run from this deal comments  ... a brisk walk may be in order.but for 30k what were you expecting.. that looks like a money pit to me.. have to work it backwards.. is there still a profit given you have to spend another 10k.it is unusual though to have a seller do this.. so obviously you can walk.. or renegotiate .. it looks like a tear down to me though..

If it's localized, is there anything unusual outside the building?

There are other aspects to determine values, like buying a car previously owned by some celebrity for example, or antique and collector valuations, but these unusual valuations apply to unique assets, not just any old trailer.There are aspects of "market value" in that legal definition of a buyer and seller having equal or similar knowledge, each dealing in good faith.

My 1st year with those sky high interest rates, I only sold 1 house and made $4k. every year my income about doubled except my last year I tripled the year before hitting the $360k but it was an unusual tax driven year.