When grandpa dies, the property certificate should be transferred to grandma's name. Grandparents have five children, four go to the notary office to sign, and one doesn't sign. this
Although grandpa's name is on the real estate license, but. Real estate should be the property of grandparents. Now that grandpa has passed away, half of the property should belong to grandma, and the other half should be inherited by the first heir, that is, your grandmother and five children. Now they can't reach an agreement. If one of them doesn't sign, then the notarization can't take effect. The solution is to evaluate the house, the one who doesn't sign it will share his share, and then transfer the house to grandma. If negotiation fails, he will resort to the people's court for settlement.