As you note you need to build a nest egg.  

People are either trying to become financially free, build a good passive income nest egg, etc.

I was writing nested for-loops in Matlab as a freshman when you were probably fumbling around on your iPhone.

There's nothing like other peoples money to feather your nest!

Nest makes it very simple to do in app.  

That will tell you what kind of revenue you can expect to achieve based on the size of home you are looking to buy.To your question about multi-family units I do believe this presents an advantage to you for two reasons:1) You can "nest" your listings - this means that you can list each property individually AND create a listing for all of them together. 

Example: rent is $1300/mo as is, $1400/mo for a new "tech package" with all nest connected door bells, cameras, etc. 

Mice will eat electrical wiring, duct work, drywall, nest in just about everything and be non-paying tenants residing in your roof and walls.

My tenant has a wasp nest which is obviously an issue.

Im debating between selling for cash as soon as possible, and then using as a nest egg for next purchase, or holding and developing the lot down the road (probably a purpose built SFR with accessory appt).