1. Since property is classified as "Ancestral Property", the same CANNOT be transferred in any one persons names, more so since all residual legal heir of the property holder, is entitled to EQUAL share in the ancestral property.
2. Try to settle amicably, since the only legal option left is to file a Civil Court suit for Partition of the ancestral property. Certified copy of the Land documents can be obtained from the Tahsil office, which can be done using the services of a local Property Lawyer.
3. Time taken for such Partition Decree, shall depend on the pending backlog cases in the civil court. However this usually takes from 1-5 years for final order.