While an executor or personal representative for an estate may need to sell an estate's assets, such as real estate to pay off the estate's debt, most already know an agent or 2.
To target these as potential home sellers is pretty much the equivilent of ambulance chasing. And as BrokerPro said, if it's so profitable & these homes are offered at such a discount, why isn't the guy snatching up these homes instead of selling you his course and giving away his "secrets".
Plus most people that are appointed as an executor are not stupid & actually, part of the probate & estate process requires that all the estates assets be valued. For real estate, this needs to be in writing, such as a CMA from a real estate agent. The entire estate must be valued & assets may have to be sold, or may not have to be sold.
My mother died with 1.5+ mill in real estate. We sold one commercial building & then a recreational lot, but are holding the other 3 properties as they are owned free & clear. Doesn't cost us but taxes, insurance and utilities. No mortgages.