1. A limited partnership shall designate and continuously maintain in this state both of the following:
a. A registered office, which need not be a place of its activity in this state.
b. A registered agent for service of process.
2. A foreign limited partnership shall designate and continuously maintain in this state a registered agent for service of process.
3. A registered agent for service of process of a limited partnership or foreign limited partnership must be an individual who is a resident of Iowa or other person authorized to do business in this state.