The min requirements are
Right now there is no set min requirement for gw but within the next few guild wars we are going to 48k min. we also set max sentinels
For invasion/raid just do the weekly free sigils.
We complete 50+ legendary task every week and all raids and invasions. We work great as a team. we have a group psn chat and a pet psn chat so you always know when someone finds a pet.