1.Beneficiaries are authorised to sign the Sale Deed and not the executors. Executors have to supervise and to watch whether all the beneficiaries, as per Aunt's WILL, got the benefit and to see that dead aunt's wishes are fulfilled.
2.Obtaining POA, in the name of one of the beneficiaries, from other beneficiaries who do not turn up for signing the sale deed, the property can be sold or if anyone or more of the beneficiaries do not want his/their share, then such persons can execute a Relinquishment Deed in favour of anyone or all the other remaining beneficiaries.
3.If one of the beneficiaries wants to stop the sale, it can be done by moving the court.
4.Khata need not be changed in the name of 11 beneficiaries for selling the property and it can remain in your dead aunt's name and still the beneficiaries can sell the property.
5.All the beneficiaries put together can have a Family Settlement Deed, before going for sale of the property.
6.Even though the property is in your dead aunt's name, by producing the Death Certificate and the probated WILL, the beneficiaries can execute sale deed.