The Informal Charge becomes enforceable when the lender obtains a court order, allowing them to take possession of or sell the land if the borrower defaults on the loan. This type of charge is common in jurisdictions where formal registration processes may be cumbersome or delayed, providing a quicker method for securing loans. However, it carries risks for both parties, as the lack of formal registration can lead to disputes over the validity of the charge or priority over other creditors.