By now the estate should have had an estate checking account in the name of The Estate of ________ into which all funds and proceeds are deposited and all disbursements are made.
Subject to you confirming this with your lawyer, here's how I think it should go.
The entire proceeds from the sale of the home go into the estate account.
The proceeds from the sale of any other assets (cars, household goods, etc) go into the estate account.
Cash coming in from any other source goes into the account.
From that total you:
First - pay yourself your fee.
Second - reimburse yourself for anything and everything you spent, including attorney fees.
Third - pay all remaining creditors.
Fourth - distribute the remaining funds to the heirs in accordance with the will to the extent that there are funds available.
I think you may find all that addressed in the statute section Administration of Estates:
Tell the people in Group A that the attorney fees for any further challenge along with additional fees to you for handling it will be coming out of the proceeds before distribution to the heirs.