A mortgagee, unless where a contrary intention is shown, has a power of sale provided: (a) the mortgage was made by deed; and (b) the mortgage money is due, that is the legal date for redemption has passed. Where the money is payable by installments, the power of sale arises as soon as any installment is in arrears.
– L.A. Ayanlere v. Federal Mortgage Bank of Nig. Ltd. (1998) – CA/K/186/96