Michael Castiglione focuses his practice on business immigration, counseling U.S. and multinational employers on the design, implementation, and management of immigration programs that support workforce needs while maintaining compliance. He advises employers of various sizes across industries on the full range of nonimmigrant and immigrant matters, including H-1B, L-1, TN, E-2, E-3, O-1, P-1, H-1B1, B-1/B-2, J-1, and F-1 STEM OPT, as well as PERM labor certifications and audits, I-140 immigrant petitions (including EB-1 and EB-2 National Interest Waiver petitions), adjustment of status, and immigrant visa consular processing. Michael also represents investors, entrepreneurs, international students, and individuals in complex and sensitive matters, including employment-based self-petitions, family-based matters, and naturalization, integrating immigration strategy with broader business and personal objectives.