I regularly argue that Dave Ramsey provides excellent, sound, time-proven financial advice that everyone should apply to their personal finances.

We're great at finding deceased owners, and working with the Heirs to name a Personal Rep, and ultimately buying their property. 

If you turned down anyone else before or after this person because they don’t make 3x you could be found guilty. 

For me personally, I've been in the niche since 2007.

Challenges?

What have been some challenging or success stories involving super jumbo mortgage financing for luxury homes?

Networking with them can be challenging, and extracting the specific information you need to transition into this space can be even more scarce and haphazard.To my knowledge, no certifications are required to officially label oneself as a developer.

Seems like finding out if the person hiring them has the right to sell a property should be step 1?

I'm personally not a fan of no cash flow.  

Two big ones are the high minimum investment and the challenge of vetting syndicators and property deals.