If he wasn’t ordered to move out, and if you weren’t awarded sole possession, occupancy, and use of the marital residence, then he is under no obligation to move out.
If he is court-ordered to move out, or that he is, by implication, required by move out because you were awarded sole possession, occupancy, and use of the marital residence, then you could have a serious problem on your hands, if your ex-husband won’t voluntarily leave.
If the latter circumstance is your circumstance, then your husband is now a squatter (a “squatter” is someone who occupies a building or land without legal claim or without permission of the owner or legal tenant). Each jurisdiction is different as to what laws apply to removing squatters. I will discuss the process as it applies in the jurisdiction where I practice divorce and family law (Utah).
Utah has to specific laws for squatters, so removing a squatter requires the owner to file eviction proceedings. That starts with a 5-day notice to quit (leave) or be sued in an eviction action. Unless the squatter can make a successful argument for having a right to stay, the court will grant you judgment and issue an order called a writ of restitution that enables the sheriff to forcibly remove the squatter and his/her personal property from your house.
Utah Family Law, LC | divorceutah.com | 801-466-9277