I'm the pers. rep of my moms estate. My brother lives there. I'm trying to sell the house while in probate and he's making it hard. Can I evict him

I am the personal representative of my mother's estate and I'm wanting to sell the house while it's still in probate. However, one of my siblings lives there. There is a Will that says for me to dispose of her assets as soon after her death and to split it equally between us four siblings. My brother that lives there is wanting to purchase the house. I feel 100% that there is no way possible that he will be able to do that. I am wanting to get the house cleaned up and everything moved out and for my realtor to list it. My brother will not cooperate with me being able to do that because he's 100% sure he'll have the money to buy it (once he gets his credit score up a little more!). When I go over there with other family members that are wanting to help me, my brother follows us around and rushes us and even makes claims that nothing is leaving the house. CAN I EVICT HIM and HOW?!?!