Rule 5.6 - Restrictions on Right to PracticeA lawyer shall not participate in offering or making:
(a) a partnership, shareholders, operating, employment, or other similar type of agreement that restricts the right of a lawyer to practice after termination of the relationship, except an agreement concerning benefits upon retirement; or(b) an agreement in which a restriction on the lawyer's right to practice is part of the settlement of a controversy between private parties.Ariz. R. Prof'l. Cond. 5.6