My fiancé has an immigration hold and they don’t know if I can bond him out can they deport him if were due to get married?

What was he arrested for? Did he enter a plea in the criminal court? If yes, to what charges? When and how did he come to the U.S.? What is his immigration status now? Does he have any orders of removal (i.e., for deportation) against him? Does he have any criminal history before this arrest? I would ask you another dozen questions before I could answer yours. In this kind of cases, there is no time to waste. If this man is dear to you, get an attorney immediately. Ideally, it should be an attorney who does criminal defense *and*immigration law. If you cannot find such a specialist, consult an immigration attorney first.

They can't deport him without due process, unless he signs a waiver of all rights and concedes to deportation. I always recommend against waiving your rights. In any event, you need to get him a lawyer asap. Feel free to contact me.