Be very cognizant of the STR and HOA laws and codes wherever you plan to do this.

In many syndications, this notice address would have both the direct mailing address of the syndicator and often a law firm that helped draft the documents.  

To some entities, who put their top value at their coaching practice as profitability (which is of course okay, 90% of businesses are profit first-it's the norm!)

@Seth Botner, I think this link explains it pretty well in general.https://www.legalmatch.com/law-library/article/deed-restrict...Here is the pertinent excerpt:Who Enforces Deed Restrictions?

For tax purposes, all LLC earnings pass through to your personal tax returns, so there is no practical tax benefit. 

More context: My husband is from the Midwest and friends & in-laws are sprinkled throughout Iowa, N.

Make sure to check local laws on separate non-relatives living together, I doubt 3 bedrooms is a problem.

What area of practice--Landlord-Tenant? 

The tax law does NOT define specific requirements or standards for cost segregation studies, and neither does the IRS.

On another 10-unit mixed-use property in a nearby coastal town, we carry hurricane and earthquake insurance, in addition to O&L (ordinance & law) supplemental coverage.