Residency Requirements. The Registrar Office must determine your legal residency before you can register and pay fees for any semester or session.PRIMARY RESIDENCE DEFINITION: A Primary Residence is your one and only main residence where you or a qualified family member resides. Residency in Pima County is a requirement of county subsidized medical care. All forms are fillable. You can fill it out in Reader and print it from there. Complete and submit the Spouse Arizona Domicile Affidavit and follow the instructions. Please note: Students also may be required to complete a Residency Affidavit. Synonyms for DOMICILE: residence, abode, dwelling, house, roof, lodging, home, residency; Antonyms of DOMICILE: eject, evict. Fill out all relevant fields in Form Letters Of Appointment Of Personal Represetnative And Acceptance Of Appointment (Pima), take a break, and then review.