CDPE is a designation that is generally considered reputable (though not NAR or CAR affiliated).
I think its kind of worthless but lots of folks swear by those classes.
As far as the original thing of vulture-marketing:
I find this distasteful and would not do it.
That being said, when my mom died, we used a caterer because they left their business cards at the crematory.
As a consumer guided on occasion by said vulture marketing, there is something to be said for not having to make a lot of decisions or do a lot of research during times of great emotional stress.
As a business owner, there is something to be said for being in the right place at the right time.
Still marketing based on divorce just seems icky as shit.
Not sure you can make a DRE complaint because he read the public records but damn…yeah…gross.
On a somewhat related note, I have a client who owns property and is conservator of his deceased mother’s estate. He lives in China. His mail in the US comes to me. When his mother passed, I got like 30 fake greeting cards from agents offering “help” to deal with the house owned by the estate.