On a regular basis I build boards for customers and invite them to work on my board as guests. Sometimes I need to transfer ownership to the customer afterwards.
Currently this is not possible, as guests cannot be authorized to become an owner.
The standard procedure would be to add a customer to my account (and pay for a day pass or a team member), transfer ownership, and then remove the customer from my account again.
It should be possible to transfer ownership without having to pay for that…!