so pl guide us what documents should we obtain from the son to complete the legal formalities if the process of transfer of flat in the name of son is legally OK and also the members of the management team can save their skin in case of any dispute among the family members.
In the given situation, the wife of the deceased is no doubt a nominee to who the shares of the property have been transferred.
However the legal fact is that the properties shall devolve equally on all the legal heirs of the deceased if he is reported to have died intestate.
The nominee is just a trustee to receive the property on behalf of the legal heirs.
However in the present situation you may ask them to submit NOC from all other legal heirs of the deceased property owner and an indemnity bond from the claimant indemnifying the society against all legal disputes in future that may arise due to this.
Please remember that just transfer of shares of the property to his name canot make him an absolute owner, the other legal heirs have to execute a registered release deed relinquishing their rights in his favor after which he can become an absolute owner of the property left behind by his deceased father.