u/Due-Breakfast-6799

My father married he owned his home he never had his wife put on the deed to the house I am his only child his wife had three children and now they want me to sell the house the children don't come in the other three children my step-siblings sold all of my father's belongings and now they want me to sell the house and split it among them there was no will there was nothing and the stepmother was never put on the deed what can I do