Generally, no one cares who owns what during a marriage because as a couple you use everything together. However, if you are considering divorce, then who owns what becomes a very serious question. Family and divorce matters are entirely within the purview of state law. Michigan is a common law property state. So, what does this mean if you are going through a divorce?
In a common law property state, assets or liabilities acquired by one spouse during the marriage are owned by that spouse. For example, if you purchase a sports car, and the car's title is in your name alone, then that is your sports car, even if you are married. However, if a piece of property has both you and your spouse's name, then it is owned equally between the two of you. So ownership is determined by who has title to that property.
How is this applied in a real life case? Most things acquired during a marriage do not have deeds or records of ownership, so how do you determine who owns what? Well, the first thing to note is that during a divorce, the court will aggregate everything acquired during the marriage that lacks clear ownership and label it as being "marital property." This basically means that the court will create what it believes is an equitable split of the assets. As a result, by going to court, property distribution decisions are taken out of your hands. Therefore, it is usually a good idea to maintain good relations with your ex-spouse so that you can settle the dispute outside of the court system.
If you are considering divorce, then you may want to consult with a family law attorney. Family law is at the intersection of emotion and money which can make for a combustible combination. The number one thing to care for during a divorce is your emotional well-being. Having an attorney represent your interests may help lessen the stress of potential conflicts with your former spouse.