In a past article I relayed the plight of the widow who stated:"I didn't realize what an A-B Revocable Living Trust meant and that it had to be divided between the survivor and the deceased spouse and that I am limited as to what I can use from his share."She told me that she only learned of this after her husband passed away. This is too late for many (there is a way to collapse an A-B Revocable Living Trust, which we'll talk about in another article).First, what is an A-B Revocable Living Trus.