He does not state what his experience level is, but I have a feeling that this deal would have taken a beginner about 12 months to complete. 

The data backs this whether it is derived from case Shiller top performing residential markets for this century or it is based on the data of the top appreciation markets in neighborhoodscout.  

I am perfectly fine holding X amount in real estate.If I do see an opportunity another option is to lock it up and sell one of my existing if I think this property will perform or appreciate significantly more.

I have most recently read in the last 2 weeks, Poor Dad Rich Dad and Bigger Pockets Invest In Real Estate the Ultimate Beginners Guide to Getting Started.

That said, I’ve found that properties in C-class neighborhoods tend to perform best with Section 8 tenants.

The asset class will be dependant on how much capital you have availabile and how much renovations you plan to perform. 2) Is there an income gap between going after 2 units as opposed to 4?

Many who started out as Novice beginners with fix and flips and now do large new construction and Multi family projects. 

I do have several S8 rentals, while they are generally performing well, there is more paperwork involved in the leasing and the strict inspections can be quite a pain. 

I envision this portfolio supporting me during my retirement years—though I still plan to work, just in a different capacity than I do today.I recently finished reading "How to Invest in Real Estate: The Ultimate Beginner's Guide" by Josh Dorkin and Brandon Turner, which has been incredibly helpful.

After six months of STR performance, transition to a DSCR loan or portfolio lender refi for better terms.2.