Your name must be unique, and not deceptively similar, to any other trademarked name or business. It is also required that your name not be used to intentionally misrepresent the products or services you offer. For LLCs, nearly all states will also require you to add a signifier of your limited liability status, such as "LLC" or "L.L.C." to the end of your company's name. You may be able to operate under a name other than your formal LLC name by applying for and using a dba.
Maine words or abbreviations of words that describe the nature of the entity, including "professional association", "corporation", "company", "incorporated", "chartered", "limited", "limited partnership", "limited liability company", "professional limited liability company", "limited liability partnership", "registered limited liability partnership", "service corporation" or "professional corporation"; beginning July 1, 2007, may also include "limited liability limited partnership" for business corporations: Title 13-C § 401 Maine Revised Statutes; for non-profit corporations: Title 13-B § 301-A Maine Revised Statutes
Limited liability companies can raise money via banks and investors but cannot sell stocks. S-Corps can get loans from banks, as well as distribute stock to up to 100 people. C-Corps have the easiest time raising capital as there is no cap on how many people can own stock. Non-Profits can both get loans and receive tax-deductible donations. Sole Proprietorships can occasionally receive bank loans but cannot sell stocks.
If you received a Notice to File a Business Property Statement from the Assessor and your business is no longer in operation, you are still required to file the Business Property Statement. You should also include a note on the Business Property Statement indicating that the business has closed, so the Assessor does not continue to assess the property.