I will be getting in contact with the broker tomorrow and sharing the situation with him as well as reporting her to the Texas Real Estate Commission. 

They're sold by broker-dealers who take about 6-7% commissions, and the manager typically charges an acquisition and disposition fee.  

If I am not wrong, the insurance agent make 10-20% commission on it, so I could save 10-20%.Thank you very much

I saw the TX Real Estate Commission guidelines for unlicensed assistants, but what activities would be helpful for investors that I could really do legally?

They will gain, of course, by getting a commission at closing.  

I either let them stay involved, ie realtors to make their commission, or I pay them a wholesale (finders) fee.

The only catch is that, to my knowledge, they all have a testing center that you have to come to in person to take the final exam before you can take the actual test to get your license. http://krec.ky.gov/licensing/na/Pages/aplp.aspx This will link you to a list of pre-license programs approved by the Kentucky Real Estate Commission. 

This doesn't include sales commissions, insurance, HML fees, utilities, etc.

chance of default from buyer is very high in these sceneriosA 6% real estate commission is quite the bargain!

You get a 70/30 split on commissions (you get the 70%).