They are avid readers so I want to send him a couple books that can help them achieve their goals.

https://www.biggerpockets.com/forums/12/topics/386159-whats-the-1-percent-ruleIn this case, aim for achievable monthly rent of 1% of total development cost, not acquisition cost ("purchase price").

You are in the right place for the knowledge needed to achieve your goals.

You get the property for a small fee up front, can still achieve cash flow, any improvements benefit you directly, you don’t tie up one of your traditional mortgages.

It’s simply an achievement that gives you more options to help buyers and sellers, allows you to pull better data and info on properties, and saves you money by giving you the ability to showcase and market your own homes on the MLS.

In today's environment, I am still achieving 7-10% annualized ROI on MF syndications.

See if interest only payments until stabilized.Talk to leasing brokers in the area and see what the demand is and rent per sq ft that might be achievable for that box size.

@Cass Lowrie  Yes, the Solo 401(k) would achieve what you describe.  

Would 30k a year be to hard for a 19 year old to achieve in real estate?

Through simplification, you are going to net $900/yr ($3300-$2400) if you achieve a 10% return on your $33k, which is a 3% net return.