So for effectively $5-600/mo plus their mortgage payment they were able to secure their dream home and eventual coastal STR.

Plus we have the "lock-in" effect going on now where people that would normally move are locked in to super low interest rates.

New career had less flexibility and I wasn't able to effectively do both anymore. 

Finding cash flow in Denver is going to be very hard without making a massive down payment or house hacking, which would be GREAT if you can do that effectively. 

Believe me, even small changes can have a huge effect on how much money we get.In the real estate investment business, it's important to build ties with brokers, lenders, and direct contacts.

Additionally, I'd appreciate any tips on balancing cost-effectiveness with durability.

Unfortunately, that is not going to be very effective.

Wouldn't that effectively shunt the alter ego case?

Such a fantastic book, FHA financing is a highly effective house hack and can be combined with a sellers concession or up to 3% with 3.5% down to reduce or completely cover closing costs.

So effectively I don't have a team.I've done all cash buys with a return of 7% cash on cash [no associated mortgage].I don't really have a network - the turnkey company is my PoC and they manage everything end to end.