I would consider single family homes as well but multifamily is the ultimate goal.

My goal here was to get a "brick and mortar" address rather than a PO Bx... usually i go the UPS route but signed up for iPostal1 this morning as it has a location near my home.  

Ensure the numbers align with your goals, factoring in cash flow, exit strategies, and risk mitigation.

Encourage him to set long-term goals, connect with mentors, and use educational resources while keeping the learning process fun and balanced with other activities to prevent burnout.

I would really suggest that you pay for the complete training and learn to do it the right way, for the right reasons- helping people to be able to obtain homeownership and not be house poor. if your goal is greed, this course isn’t for you. we get the intentions but lets talk reality.. 

The goal was to buy property in California to help underprivileged groups like traveling nurses and women needing shelter.We've created the non-profit, but I now regret not having a clearer path.

I agree with @Jake Andronico get clarity on what your end goal is.

Once you're ready, create a goal (e.g., "I will buy at least one single-family home, duplex, triplex, or fourplex before the end of 2019") and then do it.

My goal: live in it for 1-2 years and then rent it to get cash flow.

As a good starting point, I suggest getting information on a few different neighborhoods and setting some goals.