Definition - What does Attorn mean?
To attorn is to agree to turn something over to another party. In the context of the law, rights, rent, and money are all commonly attorned. For example, a landlord may attorn the right to receive rent from tenants over to a new property owner once he or she sells the property to the new owner.
Justipedia explains Attorn
Attorneys at law are people who have had the right to argue a case or make other legal actions given to them by other parties. In other words, people often attorn legal rights to attorneys in order to get help with legal issues. People can also attorn or consent to other things involving rights. For example, under the Miranda Rule, arrested persons have the right to remain silent. However, such persons can attorn to speak to the arresting officers if they would like to.