Yes! Occasionally, you'd like to be a commissioner without owning a team.
To start, please ensure that you've removed yourself from the team. You can do this by going to your Member Settings and selecting "Unassign." It will remove you from the team, but that actual team roster will stay intact.
Then you must enable "Override League Invite Capacity" to allow your league to have more users in it than the number of teams.
On Mobile:
Step 1: Open Settings
Step 2: Select General
Step 3: Scroll down and enable "Override league Invite Capacity."
On Desktop:
Step 1: Navigate to General League Settings.
Step 2: Enable "Override league Invite Capacity"
Now you are in the league but don't own any teams. You can continue to run it as the commissioner.