I encourage you to stick with whatever conditions or limits you and your husband feel is appropriate and decide to make upfront (be it some amount of rent, chores, seeking out school/work). Also you mentioned that there are addiction issues. With that in mind, it could be helpful for you to attend a couple of alanon meetings just to get a better sense of how deeply powerful addiction can be and ways for you and your family to continue to be supportive, yet firm about the ways in which you can help him that will promote sobriety, personal responsibility, and healing.