As others have said, get bids, make sure you're comparing apples to apples, with an outline of the scope of work being the same. :)

Generally, when I have issues in multi-way partnerships, I attempt to address it with the party before lawyering up, as there's usually a good chance there's a legitimate misunderstanding or lack of information.

Also keep in mind that most residential structures in China are made of concrete and an extremely minimal amount is paid towards maintenance, and the vast majority of Chinese people lack a basic understanding of how western housing is built and maintained.

However, Salt Lake Valley seems to be a bit overinflated at the moment due to the lack of supply. 

Blame it on your lack of research.

If you bought Apple stock in the 1983 most lost money or broke even.

If you only have a few units its easier to deal with a few "bad apples" but as you grow, your headache grows.So the moral of this story, hire a good PM.

The advantage, and the reason I would entertain buying a MHP is the lack of maintenance issues.

My systems were lacking. 

I advised him that my upfront issue at underwriting would be the lack of W2 income.