My question involves estate proceedings in the state of: IL

I am the executor of my mother's estate. We have a legal 'estate account' that was opened up with the official estate legal number, etc... to pay the estate expenses until it is ready to sell. I have been depositing the money into the estate account from my very own checking account, so I have been basically paying the 'estate expenses'.

My question is this. Whether we sell the house to the public or to one of my siblings, I will still be refunded my money that I have provided to the estate account correct? My brother has mentioned that if he buys the house, he does not plan to refund me this money Can he do that?