Send the rule your league plays by and the TourneyRun team builds it into your pool: underdog bonuses, picker rotations, tiebreak weeks, house rules.
No. Same as every TourneyRun pool: buy-ins go friend to friend, we track who paid.
Then it is a tweak, it is included, and we will say so in the rules sheet.
Yes. Point adjustments are free and in the commissioner console today. A rule change is a small change fee.
The TourneyRun team. You get one name on the rules sheet and a reply-all address.