I am leaning towards no due to pretty unfavorable conditions but the owner has bad information from current contractor on rehab costs and ARV.  

Just need advice on next steps on how to make sure the world knows they are dealing with a unfavorable perspective tenant from someone who has already been through it.

Oregon also has some unfavorable 1031 exchange tax clawback provisions if you ever want to 1031 exchange to a property out of state in the future. 

you can get an unfavorable interest rate if your park set up is not lender friendly 

As that is very unfavorable terms to a newer investor that may not have that much cash right now.The detatched garage will more than likely cost way more than 10k to fix up.

However, many of these services offer unfavorable terms, such as 30% pre-tax commission and forced discounts to lure customers, that cut into food service business owners’ already low operating margins, as reported by TechCrunch.

I am a little different than most Realtors you meet; I have no problem advocating walking away for a deal if it turns unfavorable.

But essentially the deal almost fell through multiple times - the final issue included an unfavorable FHA appraisal ($6K under my purchase price).

You're buying into the unknown...off balance sheet liabilities, future lawsuits for past occurrences that are currently off radar, other unfavorable contingencies.  

Also, if we did want to move into a primary residence to build equity in an area we like within the next 3-5 years, our concern is that a bank would view the debt to income ratio as unfavorable 2) Buying a SFR in the rapidly appreciating area we enjoy here in AZ, rent it out for a few years to build some equity, and then move inOur thought here is at least our cash would be 'working' for us while we still had virtually no living expenses in our rental3) Buy a SFR in the area while applying our unique version of the BRRRR method due to our circumstancesIf we closed on a property that needed a bit of work, rehabbed it lightly, and refinanced, we're not sure if it would make more sense to rent it out after that, or just move out of our current lease and enter the property.