If you are broke and trying to quit your job asap, the answer will be much different than what an acceptable answer would be for a professional investor who is a multimillionaire.

I love how you’ve integrated the lessons from The Fountainhead and Frank Lloyd Wright into your personal and professional journey, especially as you pursue both beautiful design and a growing real estate portfolio.Your ambition to scale up to $20M and beyond is exciting, and I’m sure with your drive, experience, and passion for architecture, you’re on the right path.

My LLC is registered obviously, then I received a form in the mail once the property was recorded after purchase. 

As I'd imagined, it seems like there are no hard-and-fast ways that a deal must be structured, but rather there is room for flexibility depending on the situation, and in any case consultation with experienced professionals at every level is key.

When I click the link above I receive this message: "The item you’ve requested is not currently available in the U.S. store."

Can this person now be "a real estate" professional? 

You lose all of the control and these are long term investments - but in my experience the returns match what I had on the active real estate and I am hiring professionals to manage the assets.  

These are professionals with additional training and a stricter code of ethics.

Not legal or tax advice, but I think every subject to purchase should include a wrap mortgage so that you create notes receivable income.

Focus on tax-saving strategies such as cost segregation studies and bonus depreciation to accelerate deductions.By qualifying as a Real Estate Professional (spending 750+ hours annually and materially participating), you can offset your wife’s S-Corp income with real estate losses, reducing your tax liability.