A publication of the law firm of Butler Snow has in its Pro Te: Solutio, Jan. 2010 at 13, an impressive three-page summary of the requirements in each state “governing admission of out-of-state attorneys who represent business organizations as in-house counsel within the forum state.”
Shannon Hoffert compiled the list and I commend it to those readers who may be concerned about their professional legitimacy within the state where they practice law (See my post of Dec. 17, 2007: hullabaloo in New Jersey over in-house bar admissions; and May 31, 2005: obligation of legal department to track admission status of its lawyers.).