“Thank you Taxagent for your insight. In this situation the widow is the executrix of the estate.”
That is a key fact you left out from your earlier post. Assuming the LLC interests were estate property, then the executrix would be empowered to operate the LLC until the interests passed to the estate beneficiaries. Thus, if the LLC were to sue or be sued, she could retain an attorney for the LLC to represent it in court. As executrix, it is her job to round up the estate assets (including the LLC interests) and to administer them for the benefit of estate creditors and beneficiaries. If she fails to do that, she may breach her fiduciary duty to the estate.
“The probate action is now closed and there was never any mention of the real estate or the LLC in any of the inventories filed with the court. In your opinion is this grounds for dismissal under a motion for judgement on the pleadings?”
It is impossible to say since you don't indicate who the parties to the lawsuit are, what the lawsuit is about, or anything else about the lawsuit.