Me. Rev. Stat. tit. 32, § 13176

Agencies may conduct business under a trade name, provided that their license is issued under the trade name. If an agency is licensed with a trade name, that trade name shall be used by the agency, its employees and independent contractors in all real estate brokerage related advertising. The director may refuse to issue a license under a specific trade name if the name is deemed to be misleading, deceptive or will likely result in confusion with other existing businesses.