@Brian Burnham in addition to the legal action and filing complaints with the regulatory authorities, I would contact every corporate leadership member I could find.  

However working toward your own firm after being in corporate world is different than working for yourself before working for someone else.

The warehouse would go into a family corporation that owns and manages the warehouse investment.

What are the good steps (checklist) to ensure there are no co-mingling and avoid piercing the corporate veil? 

Besides doing Airbnb, I would like to set up for corporate housing.

The other thing is you have to pay corporate tax rate (fixed at 25%) and then potentially again depending how you withdraw money from the S.L. for instance tax on dividends. 

Thanks againhttps://casetext.com/statute/california-codes/california-revenue-and-taxation-code/division-2-other-taxes/part-11-corporation-tax-law/chapter-7-net-income/article-3-items-not-deductible/section-244365-interest-depreciation-taxes-or-amortization-paid-with-respect-to-substandard-housing

None at all, personal (unlimited or limited), corporate (single entity, a few locations, full parent company), or both business and personal?

Question 2: If we DO decide to test this format out, should we sign the Master-Lease with him as an individual, or in his corporate name?

In addition S corporations and C corporations have some rules that make them a less effective form of ownership compared to an LLC for real estate.