Problems with Earlier Title Deed what to do

I recently bought a land from a "O". This property was sold to "O" in 2008 by 6 members in a family as it was an ancestral property. Let's say "A" was the original owner who died intestate in 1998 who had 2 sons, say "S1" and "S2". So at the time of executing the earlier deed, the survivors (legal heirs) were: 1. "S1" 2. Three daughters of late "S2" ("S2" had 4 daughters, 1 deceased - "Y") 3. Two daughters of "Y" 4. Husband "X" of "Y" So when the earlier deed was executed due to some ignorance, they did not collect the signature of "X", although "X" signed as witness in that deed. Now the problem was identified when I applied for a loan. The bank said as the earlier title was not signed by "X", I now need to get a ratification deed executed by "X". I approached "X" as he was OK for that. The document writer suggested and made him execute and register a new deed where his share (i.e. 1/24) is sold to me. I have doubts if this is the correct way of doing??? Please advise. Thanks.