Colorado recognizes common law marriage and determines common law marriage on a case-by-case basis. The time that you live with your significant other is only one of many factors the court will consider when determining if you are common law married. Other factors the court will weigh include, but are not limited to, the nature and extent of the relationship, sharing of finances, whether the couple claims to be married to the public, and whether the couple has assumed one another’s names. The best way to find out whether or not you are or are not common law married is by consulting with a lawyer experienced in the matter regarding the specific facts of your case.