AITA for refusing to let my brother stay in the house I inherited?

My dad died of a heart attack six months ago. My mom died when I was 10. My dad left behind a daughter (me, 22f), a son (my brother, 35m), and a house that needed some work. The will was very clear, and the house went to me. My brother got some money that was left, a few thousand. Most of it was tied up in the house that I inherited.<br><br>My brother didn’t seem happy with this. He asked if he could stay in the house while I was in school (I commute), but I said I would need him to pay rent. He said it was “pathetic” that I was making him pay rent, because the house was our childhood home and I had a “moral obligation” to let him stay there. I said no, but that he could stay there some nights if he wanted to (like a week at a time, when my classes are all online), and I would let him keep some of our parents’ stuff that was still in there. He got angry and called me an “entitled little brat.”<br><br>He has since tried to guilt trip me into letting him stay there. He says that he earned the house as much as I did, since he helped take care of dad after mom died. He also said that our dad was getting “senile” and didn’t know what he was doing when he wrote the will. I do know that my dad admitted to having some memory troubles (I can’t spell it), but he seemed totally lucid to me. He looked a bit old and tired, but he didn’t seem confused.<br><br>I don’t understand why he can’t just accept that the will was fair and I should be able to decide who stays in my house. I have tried explaining to him that I use the house, too, but he just laughs and says that I’m not there most of the time so it’s “my own fault” for not staying there instead of my dorm. AITA for not letting him stay there?<br><br>Edit: I am not in my dorm during breaks. I am in the house. I would not be there if my brother was there. Also, it’s not a tiny house. There are three bedrooms and two bathrooms, so we could both stay there at the same time. He wants to live there all the time.