Last Coupe of Questions(alliance stuff)

[Burter Jr]

1. Depends on the alliance. When someone invites you, you can join. Each alliance has specific qualities they look for

2. No requirements. Be active for awhile and you'll get a board, but you can stick around as long as you want

[Orion]

Be aware also that if you were thinking about starting your own alliance, you need to have three or more people in it. I'd advise to just roleplay a bit, make some relationships with other characters, and take it from there.