How long should my purchase and sale agreement be?

[Jameson Sullivan]

When wholesaling where do you guys get your contracts from? Do you just write them up yourself? and what kind of stuff needs to be in there. I know there needs to be a financing clause but what other kind of stuff? I know there are other threads that touch on this topic but I was hoping for a little bit of direct back and forth interaction for I can really feel comfortable when that first call comes in. I wanna be able to atleast APPEAR that ive been doing this for years! Help!