As a firm that practices Family Law, a large number of our cases involve divorce and it is no wonder - the common statistic is that 50% of all marriages end in divorce. Tessmer Law Firm brings you 20 Divorce Mistakes. Bookmark our Facebook page so you don’t miss any! Divorce Mistake #1: Believing your spouse will be fair and amicable. Most people facing divorce are emotionally vulnerable and upset; some are in a state of denial. You may think your spouse will treat you well throughout the process, but chances are things will become antagonistic. Look out for yourself and expect him – or her – to do the same.