I also came across the following article which reviews why LLC as a structure is not the way to go.http://www.moodysgartner.com/canadians-beware-united-states-limited-liability-companies-may-be-hazardous-to-your-tax-health/I also found the following to be informative.

You need to understand the IRS Publication 523 that is Sale of Residence.

He did it through (1) professional website (2) constantly optimized for SEO (3) new social media articles at timely intervals (4) sponsorship of charitable events (5) ongoing public relations campaign (6) billboards (7) advertising in local newspapers (8) SEM .  

However, the seller claims he purchased the property as a two-unit dwelling based on Baltimore City public records, yet it’s not legally permitted as such.

A large home for seniors who need minimal/no health supports with shared kitchens and bathrooms.

Would these be found in public records? 

There just isn't a lawsuit or publication of events.I don't know what state you are in but some states require the bureaus to give consumers a free credit report once a year.

Most very successful STRs seem to have direct booking options, they are opening their properties to the YouTube Airbnb influencers to get more publicity, they are creating regular content through their own social media channels, etc.  

And eXp offers health care... and you can do business in any market throughout the US and in 27 countries while collaborating with and gaining support from over 90,000 agents Worldwide... 

This thorough investigation helps identify potential red flags and ensures that the sponsor has the resources and expertise to execute the project successfully.Financial AnalysisExamine the sponsor's financial statements, funding sources, and capital structure to evaluate their financial health and stability.