Contracts how old do you have to be to rent a motel room? Contracts While there is not a law on the subject, most hotels and motels will not rent a room to someone under the age of 21. Previous article: How old do you have to be to rent an Apartment? Prev Next article: If I am a minor and have entered into a contract to buy a car from an adult, is there anything I can do to get out of the contract? Next