 This is a randomized trial testing the efficacy of a modified 12-step facilitation therapy for individuals with serious mental illness and alcohol use disorders, compared to usual treatment. 135 participants are randomized in 2:1 ratio to the modified 12-step facilitation 12 sessions of individual counseling vs. treatment as usual. The primary hypothesis is that those receiving 12-step facilitation will have better drinking outcomes percent days abstinence and drinks per drinking dayat end of treatment. 