Medicaid only has a claim on assets that pass to your mother-in-law. It does not have a claim on assets that pass to others. It sounds like that your father-in-law’s only property is a joint account with your husband. If this is the case, at your father-in-law’s death, this will pass to your husband and will not be subject to claim by Medicaid. For more information about joint accounts, go here: https://www.elderlawanswers.com/understanding-tenancy-the-different-ways-to-co-own-property--5842.