Haha was gonna say! I have a representative too but I linked mine with no issue.You can still link your application even if you're using a representative/lawyer. The only thing is your lawyer/representative will lose access when you link the application to your gckey account.
Since you said the lawyer's job is done, it seems like there wont be an issue if they lose access anyways.... and if you don't have a gckey, you can just create a brand new one.
It's not that complicated...