What do federal lawyers do after they pass the federal bar exam? Is practicing federal law more prestigious than state law?

Local Civil Rule 83A of the Local Rules of the District of Puerto Rico provides that an attorney is qualified for admission to the bar if he or she is currently in good standing as an attorney admitted to practice before the highest court of a state, the District of Columbia, the Commonwealth of Puerto Rico, the Territory of Guam, the Commonwealth of the Northern Mariana Islands, or the Virgin Islands of the United States, provided the attorney also complies with one of the following: -Received a satisfactory score as determined by the District Examination Committee on an examination approved by that committee. The Court must be satisfied that the attorney can provide effective assistance of counsel to his or her clients under the Sixth Amendment of the Constitution of the United States. -Served in this District as a District Judge, Magistrate Judge, Clerk or Chief Deputy Clerk, Law Clerk, United States Attorney or Assistant U.S. Attorney, Federal Public Defender or Assistant Federal Public Defender, for one year or more. -Served in the General Court of Justice for the Commonwealth of Puerto Rico, as a Supreme Court Justice, a Court of Appeals Judge, or a Judge of the Court of First Instance, for five years or more. has served, on a continuous basis, as a full-time tenured professor of law at the law school of a university duly accredited by the American Bar Association and any other pertinent authority for at least ten (10) years, provided that, at the time of his/her graduation from law school and the start of his or her tenure, no District Examination was administered in this District. Practicing federal law just means that you can appear before a federal judge and litigate a legal matter arising under federal jurisdiction. If a lawyer is in good standing with the bar of any state or territory of the US, he or she can take the bar exam to practice in PR District court without having to be licensed to practice in PR. Yes, their practice will be somewhat limited. Yes, they can have law offices like other attorneys.