Disclaimer: If by any chance this topic already exists, forgive me, I was unable to find it

I was wondering what were the key issues that should be outlined in a M/s - 24/7 contract. Aside of the listings of "Hell no, we're not going there" and "I won't live in peace if this itch isn't scratched".
The clear statement of reasons or situations that may arise that would break the contract, safe words for "Stop" and "I'm out the door", financial issues, etc...

If any of you could help me out it'll be greatly appreciated.

btw, the wiki outline and the Iron Rose were already drained of info. thanks!