how old do you have to be to go into the shelter with a boyfriend? do we need to have anything?

You have to be 18 and have a state id and no CSC charge. And if you are under 18 and no state id. They can maybe tell you about a shelter that will take you

Well you get a bed the same day when you sign up at Cass homeless shelter?

You both must be 18. And CASS is all about helping people obtain ID, birth certificates, etc. So it's helpful to have, but not required to stay there. Good luck!