I used Safeguard advisors as my consultant to help me with setting up the SDIRA and also as someone to help understand how to appropriately use the funds to invest.

As you know, mortgage rates roughly track the direction of long-term bond yields, especially the 10-year Treasury note, which is market sensitive.

If so, what safeguards did you implement to help ensure success?

How can I ask sensitive questions in positive ways that will get answers?

If there's a hole, it may be a red flag.b) sensitivity analysis: I examine all the assumptions, and make sure I can live with the worst case scenarios.c) "Stall and see": if they are getting money over multiple years, and there is no penalty for investing later, I would usually wait so I get some real performance data, versus having to look at theoretical pro forma information.d) Recession stress test: I will not invest in anything, until I subject it to recession level stress and see if I can live with the result.

I would suspect the buyer has a background in plumbing so they are sensitive to this, or they have had a property with this issue in the past, or they are simply making noise with the hopes that they can get a price reduction. 

We use sensitivity tables in our analysis as well to ensure the property can support the debt service at different levels of occupancy.

Cans were designed to safeguard the food, not to assist in opening the can.

I would make sure not to be so interest rate sensitive that you don't look at the whole picture.

For that reason banks are WAY more sensitive on location (and a few other factors) than they would be on a mortgage loan.