So, to summarize, our golddigger is pissing on the kid's grave in order to keep a suit against the deep pockets viable. Or is your hypothesis that the golddigger and the parents are working together on this to get at Merta, and the estate getting sued is just a cat's paw to put the deep pockets back in play after the legal system put them out of reach?
Either way, I go back to this being excellent evidence that folks will go thru all sorts of contortions and distortions to assign blame and cash in. I see nothing in the wealth of information that you've provided that would contradict that point, even if the point was prompted by a half-ass blog rather than legal records.