It’s good to set realistic expectations over each other’s duties as well as having a plan on how money, responsibilities, debts, and things will be divided. What if some band members believe that merch should only be sold to get gas money but others believe some things should be given out to promote the band? What if someone has a lot of friends and takes up all of the guest list spots? Who will handle social media and promotion? Some simple communication, especially things in writing, can save a lot of heartache on the road.
Resources:
Interband Agreement Template
IP Attorney: Ron Coleman
Entertainment Attorney: McNamer Law