Hoping this is a simple answer. I am a super admin in a HubSpot org and there is a developer account attached to that org. My business partner and I split the company up and he is taking the marketing org, and I am taking the developers org. If he removes me as a super admin in the marketing org and deletes my account, will my account for the developer org still work?
The two accounts are not actually attached. The only way that could be "associated" would by the non developer portal installing an app from the developer portal. But that is just an app added. You being removed from the marketing org would have no consequence on your developer portal.