I think the license serves as a way to legitimize yourself and holds you to certain standards when working with sellers.

This is the first time I’ve heard from a legitimate company that is willing to work with my specific home warranty company.

It is a legitimate offer.

Also as a parent that seems like a legitimate request to me.

Bring your lender.Any legitimate experienced hard money lender will either be licensed or have a licensed broker-of-record they use.

They're legitimate factors and expenses that must be included in any NOI calculation.Unless you're a sell side agent and want to play with the numbers to make it seem like the property cash flows when it really doesn't.

Quote from @Timothy Hero: The scary part about is STR's, at any point your local government can ban them, as we've seen in major markets.I'm genuinely interested -- is this a legitimate risk?

If you have legitimate self employment activity then you may qualify for a Solo401k which has many benefits the SDIRA does not. 

For me, income is what you can legitimately document.

I sent 92 letters to duplex owners in my specific are and had 5 legitimate leads come from it and closed on one that worked for me (these are not typical results).