Property to purchase would be a STR at $240,000 - so we would need the 20% down payment and we are looking at different options as the source of the funds.

For future properties, I'm in search of a better fit and was referred to Precision Realty & Management as an option.  

Most DSCR lenders will disqualify lease options. 

If none of the above seem like good options, I’m open to purchasing an investment property in any location, either Airbnb or a long-term rental.

There might be an upside in the lending process to say that you are a licensed GC, but there are plenty of options without it as well. 

There is not other option to verify yourself other than receiving the text message. 

Joshua’s point about local taxes and solo 401(k) options is spot on—it’s worth discussing with your tax advisor for a tailored strategy.

My approach was to partner with a GC, so he handles the rehab estimates with his years of experience.Another option is to read J Scott’s book on estimating rehab costs.I've heard a lot about this book.

However, the only reference to Homeland Security I’ve seen is a post of a seeming “wish list” of investigative agencies by the OP in the Norada thread, who, if you read his posts, is obviously less than a reliable source of information and consumed by rage.  

Online options: Many counties have online access to property records through their official websites.