Easy to keep it to a comfortable temp.

To try to answer this myself I read this on their website (#8 in the list):Choosing to compound in the 3-year, 12% targeted PPR fund increases your overall annualized return to 14.3%.I also read through the compounding examples in PPR's offering.

Company is called Comfort Capital.

Upon contacting Rent to Retirement, we were told by the rep that Delta "cut off" communication with Rent to Retirement and if we choose to continue with Delta Build, we will have to resolve issues with them ourselves as Rent to Retirement can no longer speak on our behalf.

You got the experience, now you can choose something.

I do not have many resources, but I am comfortable taking some risk and relying on my intelligence and research.

That said, you have to be comfortable with your risk tolerance - are you going to keep yourself up at night? 

It does however give you a degree of independence to choose what you want to do.As your portfolio grows you'll also feel the weight of future capex responsibility more, which ironically points you to growing more cash flow through more real estate.The other issue is that you are chasing a moving goalpost.

Jaron Walling said something that caught my attention, "search for and buy a bad roof, leverage it during the negotiation"....especially of the property has been sitting on the market longer than normal for the current market, a "bad roof" might be a gift from the real estate genie.My point is this: get good at estimating and fixing a bad roof (or any particular problem found with most houses that sit on the market longer) and you'll get comfortable buying/fixing properties that scare off other buyers. 

If you choose to go with this strategy you could complete your exchange and immediately do a cash out refi.