 In April 2013, Shurtleff testified before the United States Senate Judiciary Committee in support of comprehensive immigration reform during the Hearing on the Border Security, Economic Opportunity and Immigration Modernization Act, S.744

In February, 2013, Shurtleff spoke on Capitol Hill in Washington DC on "The Role of State Attorneys General in Enforcing Federal Law" to Congressional staffers at the Civil Justice Caucus Academy run by George Mason University School of Law

In July 2015, Mark Shurtleff, with his brother Kevin Shurtleff, started a business called MicromistNOW.The company's first product is the QuickNic Nicotine Inhaler.While attorney general Shurtleff made multiple public statements critical of the tobacco industry.