There is currently no limit on the amount of lists that can be created or a limit on how many lists a user or team can be assigned. However, there is a limit of 20,000 contacts/houses that can be on a created list or turf.
Upon trying to create a list with more than 20,000 contacts, you will receive the following message:
If you have any questions reach out to us in-app, or contact support@ecanvasser.com