An agreement among the children of the decedent, entered into during their father’s lifetime, under which they released “all claims” against each other “whatsoever, at law or in equity, known or unknown, asserted or unasserted, contingent or accrued, [and] discovered or undiscovered,” barred one of the children from bringing a claim against other children following the death of their father based on a writing alleged to have been signed by the father. Yoffee Estate, 3 Fid.Rep.4th 41 (Montgomery O.C. 2025).