If you're looking for concrete data I would look at census.gov or the Bureau of Labor Statistics (bls.gov). 

My goal is to transition out of a 9-5 to be an independent investor and owner.

I suggest using an independent insurance brokerage.

Also bought standard doors and hired independent to install at $400 per door and didn't come out the greatest.

We do primarily custom work, and so really need team members that know their craft and can view the blueprints and function independently and autonomously.

I work a day job at a FinTech company and I'm looking to build a rental property portfolio over the next few years that replaces my salary, and allows for eventual financial independence. 

I can't find a definite statement, but I get the impression this might only be for relatively long-distance moves.I know there is a separate housing agency for Independence, Independence Housing Authority. 

.* Don't allow financing or a finance contingency (it can be a good indication they are selling above market value)* Don't allow for your own independent property inspection* Are not realistic with their pro forma's (i.e. they don't include vacancy or maintenance projections or use unrealistically low vacancy factors)* Require you to pay for any renovation upfront* Sell only in cheap. low end neighborhoods* Don't accurately represent the neighborhood/property classification* Don't have consistent rehab standards for all properties* Don't provide a scope of work for the property* Can't provide references of repeat investors* Require you to close before a tenant is in place

The National Association of Realtors (NAR) own statistics show 75% of agents drop out in their first year. 

Are mentors easier to find in independent small RE businesses or franchise companies?