Sincerely consult the legal person about the right to live or use the house. Experienced people can help me with advice.

The right to use the house and the ownership of the house are two concepts. Your father has the right to use the house, but he has no ownership. The ownership belongs to you, so no matter how your aunt uses it, it is impossible to get the house because it is yours. If your aunt is still alive after your father's death, she can get part of your father's inheritance as your father's spouse, and you can also get the inheritance as your children, but the right to use the house cannot be left to your aunt as an inheritance. So she can't get the house, don't worry! This house is yours. Don't be afraid if you have a real estate license. When did your parents divorce? Did she support you before you came of age? If you are a minor and then live with your stepmother, you have the obligation to support your stepmother. In this case, if your father dies, you don't want to give the house to your aunt. If your aunt goes to court, the court will usually ask you to fulfill your maintenance obligations and give her some property without life.