Im seconding posts 2 and 3.... Advice is the order of the day here.
There are 2 different FAA Type ratings for the CJ:
CE-525S - Single Pilot
CE-525 - If you took the check ride as a multi crew
The latter is the equivalent of if you had done a CE-500 check ride in either a 1SP or 2SP as a multi crew where you get in the limitations section of your certificate "CE-500 Second in command required"
Jeff