Where a written account agreement in compliance with the Uniform Commercial Code places requirements of notice on canceling a check or errors in accounting, such requirements are valid even if they contradict the indication on the check that is it void after 90 days. The Illinois Appellate Court, 1st District, 1st Division, affirmed the decision of Cook County Circuit Judge Margaret Ann Brennan. In 2003, Aliaga Medical Center opened a business checking account with Harris Bank. In 2010, Aliaga opened an additional …