I am considering knocking the nest down myself.

Just remember not to put all your nest eggs in one basket.

Sufficient nest egg?

When done well, you can build a comfortable nest egg much sooner than you think.

Just like anything else, not all cleaners are created equal- Technology: Ring Doorbells (ring), Smartlocks (august), security (ADT), Smart home technology, control heat/ac remotely (ADT and or nest), Dynamic Pricing Tools (pricelabs), PMS - property management software (Guesty) to automate guest messes, share dynamic cleaning calendar with cleaners, sends reminder notifications etc.

How long will it take to build that nest of properties (I'm asking what is your end goal here with real estate)?   

After 4 years they gave her all the appreciation in the property, so their net housing costs for her college were zero and she graduated with something like a $100K nest egg. 

Insect infestations/nests (wasps, bees, yellow jackets, ants)7. 

We paid capital gains tax on the ones we sold.Stage C, our fledgling kids are going to leave the nest soon.

The thought with doing a few flips first was to potentially grow a bit of a nest egg (that’s not tied to our home) to serve as the foundation for BRRRR, vs starting with BRRRR and potentially having that money tied up for longer/risk having rates rise when trying to re fi and cash out the equity.