If one of your owners needs to be marked as paid for whatever reason (maybe they paid their league's entry fee offline or accounted for this year's dues by paying extra into a previous year), follow these instructions:
1. Log in to your league and go to the Manage Owners tab.
2. Click "Edit" next to the owner in question.
3. Change their entry fee to $0.00 and hit Save.
This will show your owner(s) as paid.