Aliens Insurers are characterized by what key feature?

The key feature that characterizes Alien Insurers is that they are insurers that are incorporated outside the United States but are authorized to conduct business in Vermont. This means these companies are foreign in nature because they originate from another country, yet they have met the regulatory requirements to operate within the state's jurisdiction. This allows them to offer their insurance products and services to residents of Vermont, despite being based elsewhere.

The premise of Alien Insurers is crucial for understanding how insurance markets operate across national borders, as they provide options for coverage that may not be available from domestic insurers.