As a safeguard, only the current account owner can transfer ownership to another Tick person. Also, the person receiving ownership must already be an Admin in Tick before the transfer is made.
Learn more about how to make a person an Admin here.
As the owner,
Go into Settings
Choose which Admin you want to transfer the account to:
Once you save this setting, you’ll be immediately logged out of Tick. When you log back in, you’ll only have Admin status.