Wife also supplied receipts and invoices substantiating the hours she logged” - Source Checkpoint.

All it takes is one unexpected checkpoint after having a couple drinks. 

On top of the local ordinances that set stringent procedural requirements for deposits, the landlord is exposed to damages of 2x the deposit and attorney fees if missing one of the many check points.

If we look at all of the different checkpoints along the path to purchasing a new property, (ex. lead, property info submitted, offer delivered, inspections, under contract, deal closed, probably more that I'm missing) which one would be most valuable to you have a steady flow of every month?

I am behind lol.My goal was 6 transactions, I set check points for a deal transacted every 2 months.

Once you understand the process I find its fairly easy to navigate but the initial discovery of what needs to happen at what time and how those check points are communicated was for sure a learning curve. 

Meet the contractor each week to confirm progress to give them their payment for that week, checkpoint. 

The smallest reno job is about $30k and largest s about $265kFinding the right teams and having strong systems, processes and checkpoints is what enables us to work in a large scale and in multiple metros. 

We do not need to go to Mexico anymore, I can avoid the airports, the mountains of stinky seaweed flowing onshore, the machine gun road checkpoints, the scams at the local market, etc. and get in my car and drive to Florida.Unless you travel first class flying is now a truly painful experience.

Solid debate here.First, let's just note that OP @Charles A. missed a few checkpoints in due diligence, and that came back to bite him.