You should consult with a CPA to better structure your entities.

I have Benn investing in Real Estate for 30 years and consult with all the clients that I work with about the property and strategy that best fits their investing goals.  

Having been in the lending space for a while now,  Interest income is not passive - its considered/taxed as ordinary income- just like interest you receive from your bank and savings account.Regarding profit and expenses from a flip, "that depends" on many factors but again if its short term capital gains, its not tax friendly.As always consult with your tax advisor / CPA. 

Just curious, do you charge an upfront fee for an initial client consultation? 

I have not heard of an extension as of yet.Your 100 hours is related to material participation for STR not the real estate professional status, they are two separate items but in a way can be connected (kinda).I'm not sure what you mean by "sell it for no bonus depreciation recapture" because you are required to take depreciation, if you don't the IRS should calculate your tax as if you did.Your head is in the right place and I wish you luck but would highly recommend consulting with a tax professional before proceeding if this is your plan.Best of luck Dennis!

In-year tax consultation, commission, are all deductible.

Like I said sorry I don't have any real pearls of wisdom it might be worth a consult with a good attorney that understands insurance coverage issues.

Consulting with a lawyer or a CPA familiar with multi-state real estate investing can help clarify your specific situation.

You are paying a Realtor to be your consultant through the entire process from start to finish including the full contract phase.

It is essential that you consult with an experienced cross-border team including attorney(s) and tax expert(s) to ensure that you access the right advice!