Legal Question in Wills and Trusts in Missouri

Generally the laws of equity would result in the two being paid for their efforts. Equity is a sense of fairness. I would assume that the efforts of the two were not done for fun, but rather, to improve the value of the real estate, which will benefit all three heirs. Hard to believe there would be any dispute about reimbursement for materials and reasonable hourly rate; sad if that is it the case and one reason people hate attorneys and courts.