New ownership

I recently bought a how’s that the previous owner was logged into this app with and have no way of transferring over need hep switching it over

The following should help. Please let us know if it does not:
Transfer ownership of a Rachio controller to your account

We tried and said it belonged to someone else and needed to contact support to clear out.

It sounds like you did a “How to transfer ownership to you” and that would need you contacting Rachio support. Is the previous owner not able to do “How to transfer ownership to someone else”?

No they are not

I would suggest contacting Rachio Support as per the instructions in the link.