There's a ton of posts on this site mentioning the use of LLC's.

I've been working with job titles like construction project manager, who doesn't know a lot about construction but coordinates architects, engineers, GCs etc, the VP of RE management, who also does not know a lot about construction but oversees site selection, lease negotiations, property management, RE accounting who writes my checks and does annual CAM audits, and other jobs like that.

You get rental increases and if Chick Fil a ever leaves the site you often have upside converting to absolute NNN leases with a new tenant closer to market rents. 

They will tell you what they are and they include an on site visit to your location.

1) You would just write an addendum stating that the lease is extended to whatever date and everything else remains the same.

And up-to-date.

Hey,
I'm a foreign CRE investor, tired of French taxes and complexities in everything there. I started to invest two years ago in 2 SFR in Birmingham, AL (type C homes). 
Expecting to continue that type of investmen...

The total would’ve exceeded $750 had it all been performed on the same date.

They seem mostly suited for off-site wall segments production and I have to wonder about the economic viability in real-world projects. 

Welcome to the site.