Mark is a director in the Immigration Practice Group. His focus is on temporary visas and permanent resident green cards for university researchers and professors; high-tech and information technology personnel; international managers and executives; and professional personnel in accounting, engineering, advertising and many other professions. He was selected for inclusion in Best Lawyers in America in Immigration Law, and was named among Virginia's "Legal Elite" in Immigration Law.

Mark has extensive experience representing clients seeking permanent residence or temporary visas in the following categories:

Permanent Visas

• Extraordinary Ability
• Outstanding Researcher/Professor
• National Interest Waiver
• PERM Labor Certification

Temporary Visas

• H-1B & H1B1 for professionals with a university degree
• O-1 for individuals with extraordinary ability
• TN for Canadians & Mexicans
• E visas for treaty country nationals
• L visas for multinational managers

Mark speaks regularly to university audiences across the country, as well as business groups and human resource professionals on immigration topics. He has been a featured speaker at the annual conferences of the National Association of College & University Attorneys (NACUA), the National Association of Colleges and Employers (NACE), and the National Association of Student Employment Administrators, the Council of Independent Colleges, and many other organizations. Mark is the co-author of the immigration law handbook Immigration Law - Faculty & Staff Issues published by the National Association of College & University Attorneys. Mark is a member of the American Immigration Lawyers Association.