Should I focus on teaching him the basics of personal finance, like saving and budgeting, or is there a way to introduce him to more advanced concepts like market analysis? 

I couldn’t figure out who had to even sign the loan docs let alone the personal guarantees. 

There are a few good ones - I personally like Craig Curelop and Ben Leybovich’s books.

Personally, I'm on a hiatus until rates come down a bit.

I finished that a couple of weeks ago and then found the BP podcast and listened to the first couple of episodes and I particularly enjoyed the personal stories of how people started out.

Personally, I will only invest in areas that I am willing to live in. 

Scott Carson, a "notes guru" is not a good person.

Any time I hear someone refer to "cold calling", I cringe as I put myself in the position of the person receiving the call or email and know that I will almost never buy/agree to anything from someone cold calling me.What I like to do when I'm in these situations, is try what I refer to as "warm calling".

Knowing what i know today, I always encourage new investors to do their first investments with professional guidance if you can find it -not so much the guru courses, but a personal approach from a genuinely experienced investor in the market you are entering.

Network Network Network (On the fourms, 1:1 coffee/lunch with local investors, agents, lenders, and in-person at local real estate meetups) - Here is local meetups listed in BP:  https://www.biggerpockets.com/forums/521-real-estate-events-...1.