His work spans the full range of workplace matters, including policy and handbook development; risk assessment and litigation avoidance; compliance with anti-discrimination, anti-harassment, wage and hour, and other workplace laws; and conducting internal investigations. He also advises on hiring, discipline, discharge, reductions in force, and restructuring decisions, and provides workplace training. He further counsels clients on enforcement of non-competes and other restrictive covenants; drafting employment, independent contractor, separation, confidentiality, and other workplace-related agreements; government audits and investigations; and the workplace implications of franchisor-franchisee relationships. In addition, as a pioneering technology lawyer, Mark counsels employers on artificial intelligence and tech-related workplace issues.

Mark also defends employers in a wide range of employment litigation matters. He has experience in both federal and state courts, as well as before numerous government agencies, and has defended both single-plaintiff and class action claims involving discrimination, harassment, retaliation, wage and hour violations, leaves of absence, misappropriation of trade secrets, and other tort and contract disputes arising from the employment relationship. Mark has also represented clients in litigation involving restrictive covenants. He works with clients at every step of the litigation process to evaluate which matters should be litigated, which should be resolved in an alternative forum, and which should be settled.

Additionally, Mark advises clients on all aspects of employment-related issues in corporate transactions. This includes conducting due diligence in connection with proposed asset and stock purchases; reviewing and editing purchase agreements; preparing employment, retention, and separation agreements in connection with business mergers and restructurings; advising on onboarding employees from predecessor companies; and assisting with the implementation of separation or reduction-in-force programs resulting from corporate transactions.

Mark frequently writes and speaks on employment-related issues. He has appeared on MSNBC Nightly News and has been quoted in outlets including CNN, Yahoo, and Bloomberg.

Lastly, Mark is passionate about mental health issues in the legal profession. He frequently speaks on mental health topics through webinars, bar association events, and other programs.