I believe the fee you're referencing is a late payment fee when an installment is in default 10 days or more, and is not a "deferral" or "extension" fee. Additonally, I don't believe that the late fee provision (5-19-4(a)) of the mini-code is limited to loans under $2,000, and it applies to all consumer loans, regardless of the size. Also, doesn't this provision impose a maximum late fee of $100?