What do they do? Facilitate legal transactions and obtain remedies for negligence.

Description: Attorneys who specialize in tree or green-industry law handle cases or contracts for a variety of related professionals, including contractors, arborists, landscape architects, and pest control advisers. While most attorneys have handled at least one tree case in their careers, few are able to make a career of it. The trend toward tree and green-industry law is increasing, but those who want to specialize in trees full-time will likely need to form their own practice. Handling cases in related areas such as construction and real estate law may also be necessary to round out a full-time practice.

Education: Four-year degree followed by law school and state certification.

Salary: Ranges from $50,000 to $100,000.