Can I invite another email to a board and then leave making them the admin?

[Laura]

I am switching between two Trello emails as I have recently taken over an assistant manager position and am trying to move my boards over to the assistant manager email login. Can I invite the AM email to my boards and then leave from my previous role's email so that the only admin on the board is AM?

I also want to replace the email I currently use to view all the boards I am a member of with the AM email. Is it as simple as adding the AM email as an admin and then leaving as my previous email? 

Sorry if this is confusing.

Thanks,