The Checkbook IRA owned by an LLC seems to give you the most freedom and certainly the more exposure to the IRS if you perform a "Prohibited Action". 

I handled all repairs,diagnosed existing problems, performed all duties in the remodeling/repair.

You should not sell your property until you have performed complete due diligence on one or two potential replacement properties to complete your 1031 exchange.

If the buyer does not show up / perform at closing that's a breach of contract... you keep their deposit and re-list the properties.

Notice to Buyer to Perform to release all contingencies, return all of the docs, including 2 addendums. 

A third strategy is to put all the debt not on your current residence but on the next home to be acquired and you can add all the rehab dollars into it as needed.

As far as valuation goes, let's make some assumptions of how the park could perform once you fill it up (assuming your rent survey proves there is enough demand). 

What I am actually trying to understand is how to evaluate a business and diagnosing any issues with it, while being able to understand what it would take to remedy and make it perform betterI watch YouTube all day and there's plenty about Real Estate, Macro economics, Stocks, Gold, etc., but very little in terms of business.

Theoretically, this means improved real estate marketing performance and ROI.CurationCuration remains a popular trend, though its value may be suffering due to larger trends, and the obvious need for originality.CrowdfundingNot only is technology creating more efficiency in mortgage lending, it is spawning new financing models altogether.

You are not going to see much of a divergence in their performance relative to Portland proper.