I think it would be incredibly unrealistic to go into this thinking you'll make millions.

Unrealistic!

I'm primarily looking to finance 75-80% for now and would love COC returns of 10%, but that might be unrealistic in more of a turnkey experience.I'd be happy to share anything you want to know about the new home side of the business anytime.

Your rental income estimate for Tucson is way too high and unrealistic. 

If he has “raised millions” he doesn’t ne d your $50k......There are lots of guys pitching unrealistic pie in the sky schemes at these meet ups.....my guess is he hasn’t bought Any, and is delusional about the profits to be made.Also, your opening paragraph was about buying Properties, not notes.  

@Russell BrazilHow would I determine if my expectations are unrealistic or if the property is overpriced?

GC's are some of the worst businessmen ever.It is possible that the way you are presenting the job may make it appear to them that you will demand too much in too short a time or seem unrealistic about costs, so they are scared off.

Most off market deals start out with a completley unrealisticly high price expectation.

Most sellers are unrealistic about what their house is worth.

Us investors have a reputation as being cheap, hard to work with, unrealistic, and sometimes difficult to get payment from.