Almost ALL jurisdictions require that the corporation designate a registered agent for service of process. However, in most cases, anyone who has a street address (NO PO BOXES) within the state of incorporation may act as a registered agent for the corporation.
We can recommend and set up our clients with our affiliate company NRAI for those needing someone to act as their registered agent. Persons who require our registered agent services are usually those who are incorporating in one state (Nevada, for example) and operating a business in another state (California, for example).