Last year, I did a lot of work on a site as a freelancer. We wanted to put the whole thing behind HTTPS, so, for reasons I can't recall but probably expediency-related, I purchased a cert for it under my personal account at a service that sells certificates. At the end of the year, I stopped working for the client to have more personal time.
The cert will come up for renewal soon, and the certificate service sent me a notification about that prompting me to re-up the cert. The client is asking me how we can transfer the certificate to his name. I'm not sure if such a thing is possible, and I couldn't find any information about doing this online.
Is it somehow possible to transfer ownership of the certificate to my former client, or should he simply buy a new certificate with an account he controls and have his current web developer(s) put that in place of the soon-to-expire certificate that I purchased?