Every person prior to being licensed under this chapter shall appoint, in writing, the Director and his successors in office to be its true and lawful attorney upon whom all legal process in any action or proceeding against it may be served and in such writing shall agree that any lawful process against it which is served upon such attorney shall be of the same legal force and validity as if served upon the company and that the authority shall continue in force so long as any liability remains outstanding in the State. Copies of such appointment certified by the Director, shall be deemed sufficient evidence thereof and shall be admitted in evidence with the same force and effect as the original thereof might be admitted.