This guide covers unauthorized practice of law for bar counsel, practitioners, nonlawyer service providers, and consumers. Part 1 addresses the definitional problem. Part 2 covers the information-advice line. Part 3 covers authorized nonlawyers and federal preemption. Part 4 covers entity representation. Part 5 covers multijurisdictional practice. Part 6 covers immigration and notario fraud. Parts 7 through 15 cover bankruptcy preparers and debt relief agencies, enforcement mechanisms, antitrust and commercial speech limits, remedies for victims, lawyer supervision duties, technology, access-to-justice reform models, and practice guidance.