The best way for employers to ensure compliance with federal and state immigration laws is to hire an experienced immigration attorney who is familiar with/specializes in I-9 audits - this will help employers avoid costly fines, penalties and potential civil or criminal legal action from government agencies in the event of a failed compliance review. Additionally, employers should keep up-to-date on changes or updates regarding applicable immigration laws so they can stay informed and adjust their hiring practices accordingly. Employers should also ensure that all employees receive proper training.