I would certainly not suggest locking into a contract on a property for that long unless the good faith deposit is negligible (like $500 or $250).

I currently lack any faith in my current listing agent's ability, though i'm not trying to push her out of the deal.   

I picked an experienced guy who had my architect’s faith.

I had little trust in both of those sites as is now I know not to put any faith in them from here forward.

The Principals are MEN OF FAITH!

They selected the property manager, so they obviously had faith in them. 

Point is We’ve all have hard luck stories but you must see the vision have faith and press on anyways .

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.

For me to partner with someone like that I would have to be pulling some obscene return on my money and have a hell of a lot of faith in the individual. 

That is bargaining in bad faith.