I think the ARM resets aren't isolated to LV but an issue throughout.

Isolate why they are NEEDING to sell.

When combined with asset isolation your exposure is generally limited to your equity in the property under attack.

Is the area isolated or widespread?  

So attempting to isolate those 'strategies' really doesn't even make sense since by isolation the strategy you limit you capability of recovery.So if we change the person/entity to which we asked the question "what strategy did you use" to say a bank the question becomes a bit absurd.

I'm in Ca and < 1 month from moving to Nevada or Arizona to do a live in flip which I plan on as a separate and isolated transaction from a 4-8 unit multifam in either state.  

This just creates better isolation and flexibility for your IRA.  5-10 years down the road, your IRA may not be exclusively partnering with this one individual.

The "rougher" areas aren't isolated to a single part of town or zip code.  

I solely invest in such properties in Baltimore city. requires experience on the ground to manage them. key to victory.

The Trust isolates the parties from liability.