Mark concentrates his practice on the aviation and transportation industries, including litigation, regulatory administrative and enforcement matters, investigations, airport and aircraft security and employment issues.

Mark has handled numerous safety, enforcement and regulatory matters before the Federal Aviation Administration (FAA), National Transportation Safety Board (NTSB) and other administrative agencies, whether arising from an accident or incident or other material compliance matter, including issues involving the Departments of State, Justice, the Treasury and Homeland Security, and the Transportation Security Administration.

Over the course of a career spanning more than four decades, Mark has tried dozens of jury and non-jury cases, ranging in length from one day to several months, and argued before state and federal appellate courts at all levels. He represented Sikorsky Aircraft Corp. in the landmark Supreme Court case Boyle v. United Technologies, which established the government contractor defense, and in Mounsey v. Allied-Signal, a “friendly fire” litigation, winning the manufacturer’s dismissal from the case after the government invoked the state secrets doctrine to avoid responding to third-party subpoenas.

Mark has counseled and represented numerous airlines, including:

• Alaska Airlines
• Arrow Air
• Colgan Air
• Empire Airlines
• Mesa Airlines
• National Airlines
• SkyWest Airlines
• Southwest Airlines
• Spirit Airlines
• Trans State Airlines
• US Airways
• Virgin America

He also advises and represents aviation service providers, including airports, fuelers, ground handlers, fixed base operators, maintenance and overhaul companies, catering companies, security companies, and airframe and other aerospace manufacturers.

Mark is outside general counsel to the Aviation Emergency Response Organization (AERO), which focuses on informing, educating, sharing and providing a forum for emergency response professionals from all aspects of the aviation industry worldwide, as well as the UAS Insurance Association, comprised of the leading aviation insurers providing insurance coverage to the rapidly growing drone industry.