That seems to often entail a down payment and some of the rent paying down the principle for a few years until the tenant can finally get a traditional loan to pay off the rest.

Being on this side of the equation, I wish I had someone to work with me on the purchase of properties on my behalf - However, I am aware of the risks that could entail, such as having a third party sign the documents, handle the transactions, miscommunication, etc. 

His job entails mining for seller's phone numbers and then calling to offer market analysis and other services that sellers might want.

The promissory note will specify when interest is to be paid.You can defer the tax by specifying in the note that all principal and interest are due when the note is due (i.e. one big lump sum at the end), however that entails more risk to you for which you should be compensated.

In terms of what to look for, this should entail quality customer service, SOP's established, ask them about their additional fees as many charge extra's on top of monthly fee for services like placing and moving tenants, additional repairs, marketing services, etc. 

Everything has the risks associated with it, even NNN leases. 4) Sounds like you're looking for passive investing options, which entails no control, but also very limited to no engagement on your part.

In certain Zoning Districts Community facility is allowed, but you would need to hire an architect to do a feasibility study to verify if this applies to you and what implications the change would entail.

Portfolio of turnkey SFRsThis option would entail building a portfolio of turnkey, professionally managed SFRs.

@Jacob Vorreuter While  Tom's book on Tax-Free Wealth is a great resource, it doesn't automatically entail that you must not invest your self directed funds in syndications.

I know that an HML is going to want me to have some "skin in the game" but what does that actually entail?