No, only if you've won your conference, AND have the record required, you can get promoted. So no more than one per league.At least that's what happened in the past.
I still think that it is strange that best team in regular season are chosen ahead of playoff losers after bot clean-up. Teams still get a huge benefit from winning the league so for me it does make sense that if you manage to reach far in playoffs that will be more rewarded even if it means that you could wait until days before playoff to strengthen your team. Such strategy are not especially wise though as players are much more expensive close to Playoff than at start of season.
No, only if you've won your conference, AND have the record required, you can get promoted. So no more than one per league.At least that's what happened in the past.Just to be sure - are you aware of the possibility non-winner of any conference can win it all?I can't say if winning a conference is a criteria but i can confirm best record followed by best point differential as next criteria is correct. No team which would have a record good enough and didn't win its conference at the same time occured in my county to prove the winning a conference thing.