Where a certificate of occupancy has been granted to one of two claimants who has not proved a better title, it must be deemed to be defective and to have been granted or issued erroneously and against the spirit of the Land Use Act and the holder of such a certificate would have no legal basis for a valid claim over the land in issue. So, too, where it is shown by evidence that another person other than the grantee of a certificate of occupancy had a better right to the grant, the court may have no option but to set aside the grant or otherwise discountenance it as invalid, defective and/or spurious as the case may be. See Joshua Ogunleye v. Oni (supra), Dzungwe v. Gbishe and Another (1985) 2 NWLR (Pt.8) 528 at 540. For a certificate of occupancy under the Land Use Act, 1978 to be therefore valid, there must not be in existence at the time the certificate was issued, a statutory or customary owner of the land in issue who was not divested of his legal interest to the land prior to the grant.
— Iguh, JSC. Olohunde v. Adeyoju (2000) – SC.15/1995