The state and federal courts, existing side by side within the boundaries of each state, separately control admission to practice law before their respective bars. Although membership in a state bar is generally a prerequisite for admission to the bar of a federal court, the two systems do function under separate and distinct ground rules, and they appear to have done so with a minimum of friction. However, the principal case is indicative of the problems that may arise when state policy on the right to practice law within the state conflicts with federal policy.
Michigan Law Review,
Attorney-Client-Client's Right To Engage Out-of-State Attorney for Advice Concerning Federal Claim Is a Privilege and Immunity of National Citizenship--Spanos v. Skouras Theatre Corp.,
Mich. L. Rev.
Available at: https://repository.law.umich.edu/mlr/vol65/iss4/5