I think every situation is different based on where your broker is, but I believe they try to pair you with the closest possible mentor geographically and personality-wise.

@Brian Burke Thanks for the informative explanation and for clarifying what are the critical aspects I have to dig into. thanks!

The detailed explanation on the technique would be too long for this post.

Most of these properties are located in the same geographic area, within a couple miles of each other.

@George Blower - Thanks very much for this explanation. 

If you find any estate planning documents take them to the attorney who wrote them if possible, they will be able to give you the best explanation.

This is what we found and was wondering has anyone done this before:If you want to keep your options open after the 45th day all you need to do is make a valid written identification of what your replacement properties may want to purchase and then use the remaining 135 days to do your due diligence.Was wondering if this can be done with a written explanation and has anyone done this before?

@Edwin Nieves I focus on a specific geographic area and get to know the brokers and owners that are working in that geography. 

I received an email with "unpaid" taxes from the county along with a lengthy explanation that the attachment is not delinquent (after I asked specifically) taxes owners. 

I probably didn't expand my search enough geographically (limited myself to properties within a 30-minute commute of the Irvine Business Complex where I worked at the time), but I couldn't find anything that would meet the FHA self-sufficiency rule.Fast forward to 2015, and I eventually found a 4-unit to house hack using FHA, all the way up in Santa Clarita.