You don't have to be the commish of a league to add it, but the current commish of that league has the right to update it at any time and only they have the right to a reset password for it.
Only those fields which have a red asterisk after them (6) are required. Otherwise, fill in as many or as few characteristics as you want. Note however that the more you fill in the more likely the league will turn up in search results. N/A means either not available or not applicable.

