You should not have to buy a third-party service just to change the primary admin.
The only real solution is to call Intuit and let the rep walk you through the process step-by-step. Please note it will take hours. Do not submit any documentation until you are on the phone with the rep - otherwise the Inuit employees always conveniently 'lose' them and/or claim that never received anything. It took our CEO 2-3 hours on the phone just to get Intuit to change our primary admin to him. This was our CEO - who certainly had more important things to do. Good luck and grab some lunch given how long the process takes.
