1) it is necessary to peruse the agreement signed by family members to advice
2)4 month time would be from date of agreement and not from payment unless there is clear provision in this regard that 4 months should be counted from date of payment
3)purchaser has fairly asked for refund in case deal is cancelled
4)if purchaser moves court then court will grant injunction restraining creation of third party rights pending hearing and final disposal of suit
5) suit will take more than 10 years to be disposed of
6) settle issue amicably with the purchaser and refund the advance money paid
7) let 7 members refund the amount and purchaser can file suit against balance 5 .
8) file suit for partition