If it has been changed, it means that it has been transferred to your brother's name before, then you can sue and ask for the division of the estate.
According to the marriage law, the marriage room belongs to both husband and wife, and your brother owns half of the property rights of the house.
According to the Inheritance Law, if your brother dies intestate, the heirs in the first order shall divide the inheritance equally. As far as your family is concerned, parents, sister-in-law and daughter all have the right to inherit, and each parent has the right to inherit half of the property. In other words, you can go to the court to apply for the house of 1/4 as an inheritance.