Wis. Stat. § 409.612: Timeliness of notification before disposition of collateral.

(1) Reasonable time is question of fact. Except as otherwise provided in sub. (2), whether a notification is sent within a reasonable time is a question of fact.

(2) Ten-day period sufficient in nonconsumer transaction. In a transaction other than a consumer transaction, a notification of disposition sent after default and 10 days or more before the earliest time of disposition set forth in the notification is sent within a reasonable time before the disposition.