The original certificates of Architect, Accountant and Engineer have to be retained by the promoter because the same are
required to be verified and audited by the statutory auditor of the promoter's company within 6 months of every financial year.
If the property is not partitioned prior to 2006 and is still in joint family name, then even the married daughters will have a claim in such property and any transaction in connection with the property will have to be done by all the legal heirs together.