The security for the loan is either (a) the interest in the trust as a beneficiary or (b) a mortgage/deed of trust on the land held by the trust benefiting son and family.  

I have seen these go very bad.For a very well financed investor who if the loan is called can cash it out without benefit of rei  ( because they can't refi because they don't own it)  and can continue to make the payments if the person they sold it to defaults while you go through the foreclosure process.. this can work.But the risk to the seller is great in these deals.The risk to you as the middle man is simply your conscience...

@Bryan Hancock One of the benefits of the old rules for accredited individuals was that they were easily understood.  

In most cases, the owners you connect with will treat this broker as a buyer's broker so go into this with the expectation that you'll pay the commission and adjust your numbers accordingly.

Each time you interview one, you will think of more questions to ask them, so keep adding to and adjusting your list of questions.

Your student loan debt is being serviced from after aftertax income, so that 6.8% needs to be adjusted for your marginal tax rate to yield what you must actually earn to service that debt (could be closer to 9-10% pre-tax).If you have forced appreciation in the house and it will appraise for 135K, you may be able to pull additional equity from the home to pay down (or pay off) your student debt ... effectively transferring your student loan (6.8%) to your mortgage (4.x%?).  

They have no problem adjusting your pro-forma estimates to a rate and costs they are willing to offer you. 

Other benefits include Tenants refer other tenants (because they are treated right) and those referrals are usually in good financial standing as well, tenants are not as "quick to blame the landlord" when something breaks and maintenance requests actually decrease because they have a positive image of landlord and try to fix minor repairs, it also shows throughout the company the attitude of owners and that this is not just a numbers business but a PEOPLE BUSINESS.

Most properties that I'm looking at are in the 35-75k purchase range and ARV values of around 110-150, with average Reno cost of around 20-30k with most projects taking 90 days also since there are a lot of FHA loans on these properties it really doesn't benefit to flip it any faster. 

Generally speaking, you'll still pay as much to demo, as hauling off the debris is the expensive part (and it's unlikely the fire department will do that for you)...The benefit is that you may get a tax benefit by donating the house to the jurisdiction for use -- of course, it will depend on whether it is "safe" to burn the house down for training purposes or not.