Kadiri v. Olusaga (1956) 1 FSC at p. 178: “It is the case, as stated by the learned trial Judge, that the security given was not the form of a legal mortgage, that is to say by deed, transferring the legal estate to the respondent, but the deposit of title deeds as security for a loan is an equitable mortgage, and I am unable to agree that the loan was an unsecured one within the meaning of the legislation in question. As Lord Macnaghten said when delivering the judgment of the Board in Bank of New South Wales v. O’Connor (1889) 14 AC page 273. ‘It is a well established rule of equity that a deposit of a document of title without either writing or word of mouth will create in equity a charge upon the property to which the document relates to the extent of the interest of the person who makes the deposit. In the absence of consent that charge can only be displaced by actual payment of the amount secured.'”
WHERE MORTGAGE IS BY CHARGE
In other words where the mortgage is by way of charge, and not by conveyance, the mortgagee takes no estate whatsoever in the land or in the property but he has generally only an equitable interest to be enforced by sale upon an order of court. The equitable charge simpliciter only gives a right to payment out of the property; it does not amount to an agreement to give a legal mortgage at all. The strict mode of enforcing the charge is, however, by sale (or appointment of a receiver under an order of court) but never by foreclosure. On the other hand where, as here, the agreement is to create a legal mortgage when required following a default in the terms of the agreement, the agreement may be enforced according to its terms notwithstanding that the legal mortgage when executed will also confer on the mortgagee an immediate power of sale.
– Idigbe JSC. Ogundiani v. Araba (1978)